Relevant bibliographies by topics / Magneto plasmonic

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Magneto plasmonic'

Author: Grafiati
Published: 10 March 2023

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Journal articles on the topic "Magneto plasmonic"

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Hu, Bin, Ying Zhang, and Qi Jie Wang. "Surface magneto plasmons and their applications in the infrared frequencies." Nanophotonics 4, no. 4 (November 6, 2015): 383–96. http://dx.doi.org/10.1515/nanoph-2014-0026.

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Abstract Due to their promising properties, surface magneto plasmons have attracted great interests in the field of plasmonics recently. Apart from flexible modulation of the plasmonic properties by an external magnetic field, surface magneto plasmons also promise nonreciprocal effect and multi-bands of propagation, which can be applied into the design of integrated plasmonic devices for biosensing and telecommunication applications. In the visible frequencies, because it demands extremely strong magnetic fields for the manipulation of metallic plasmonic materials, nano-devices consisting of metals and magnetic materials based on surface magneto plasmon are difficult to be realized due to the challenges in device fabrication and high losses. In the infrared frequencies, highly-doped semiconductors can replace metals, owning to the lower incident wave frequencies and lower plasma frequencies. The required magnetic field is also low, which makes the tunable devices based on surface magneto plasmons more practically to be realized. Furthermore, a promising 2D material-graphene shows great potential in infrared magnetic plasmonics. In this paper, we review the magneto plasmonics in the infrared frequencies with a focus on device designs and applications. We investigate surface magneto plasmons propagating in different structures, including plane surface structures and slot waveguides. Based on the fundamental investigation and theoretical studies, we illustrate various magneto plasmonic micro/nano devices in the infrared, such as tunable waveguides, filters, and beam-splitters. Novel plasmonic devices such as one-way waveguides and broad-band waveguides are also introduced.
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Kazlou, A., T. Kaihara, I. Razdolski, and A. Stupakiewicz. "Surface plasmon-assisted control of the phase of photo-induced spin precession." Applied Physics Letters 120, no. 25 (June 20, 2022): 251101. http://dx.doi.org/10.1063/5.0097539.

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We demonstrate surface plasmon-assisted control of a photo-magnetic spin precession phase in hybrid noble metal–dielectric magneto-plasmonic crystals. The plasmon-driven photo-magnetic excitation of the spin precession in the dielectric was performed by means of a time-resolved magneto-optical method in the near-infrared spectral range. We show, both experimentally and numerically, that a surface plasmon-polariton resonance results in the phase reversal of the spin precession. We discuss the similarity of plasmonic excitations in metal–dielectric bilayers to the action of photo-magnetic stimuli with orthogonal linear polarization in dielectrics. These results demonstrate rich possibilities of plasmonic excitations beyond conventional enhancement of the electric field intensity and indicate high promise of magneto-plasmonics for photo-magnetism at the nanoscale.
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Kuzmin, Dmitry A., Igor V. Bychkov, Vladimir G. Shavrov, and Vasily V. Temnov. "Plasmonics of magnetic and topological graphene-based nanostructures." Nanophotonics 7, no. 3 (February 23, 2018): 597–611. http://dx.doi.org/10.1515/nanoph-2017-0095.

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AbstractGraphene is a unique material in the study of the fundamental limits of plasmonics. Apart from the ultimate single-layer thickness, its carrier concentration can be tuned by chemical doping or applying an electric field. In this manner, the electrodynamic properties of graphene can be varied from highly conductive to dielectric. Graphene supports strongly confined, propagating surface plasmon polaritons (SPPs) in a broad spectral range from terahertz to mid-infrared frequencies. It also possesses a strong magneto-optical response and thus provides complimentary architectures to conventional magneto-plasmonics based on magneto-optically active metals or dielectrics. Despite a large number of review articles devoted to plasmonic properties and applications of graphene, little is known about graphene magneto-plasmonics and topological effects in graphene-based nanostructures, which represent the main subject of this review. We discuss several strategies to enhance plasmonic effects in topologically distinct closed surface landscapes, i.e. graphene nanotubes, cylindrical nanocavities and toroidal nanostructures. A novel phenomenon of the strongly asymmetric SPP propagation on chiral meta-structures and the fundamental relations between structural and plasmonic topological indices are reviewed.
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Khan, Pritam, Grace Brennan, James Lillis, Syed A. M. Tofail, Ning Liu, and Christophe Silien. "Characterisation and Manipulation of Polarisation Response in Plasmonic and Magneto-Plasmonic Nanostructures and Metamaterials." Symmetry 12, no. 8 (August 17, 2020): 1365. http://dx.doi.org/10.3390/sym12081365.

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Optical properties of metal nanostructures, governed by the so-called localised surface plasmon resonance (LSPR) effects, have invoked intensive investigations in recent times owing to their fundamental nature and potential applications. LSPR scattering from metal nanostructures is expected to show the symmetry of the oscillation mode and the particle shape. Therefore, information on the polarisation properties of the LSPR scattering is crucial for identifying different oscillation modes within one particle and to distinguish differently shaped particles within one sample. On the contrary, the polarisation state of light itself can be arbitrarily manipulated by the inverse designed sample, known as metamaterials. Apart from polarisation state, external stimulus, e.g., magnetic field also controls the LSPR scattering from plasmonic nanostructures, giving rise to a new field of magneto-plasmonics. In this review, we pay special attention to polarisation and its effect in three contrasting aspects. First, tailoring between LSPR scattering and symmetry of plasmonic nanostructures, secondly, manipulating polarisation state through metamaterials and lastly, polarisation modulation in magneto-plasmonics. Finally, we will review recent progress in applications of plasmonic and magneto-plasmonic nanostructures and metamaterials in various fields.
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Yeneayehu, Kinde, Teshome Senbeta, and Belayneh Mesfin. "The effect of surface plasmonic resonances on magneto-plasmonic spherical core-shell nanocomposites." SINET: Ethiopian Journal of Science 45, no. 2 (August 30, 2022): 132–42. http://dx.doi.org/10.4314/sinet.v45i2.2.

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In this study, the effect of plasmon resonance on magneto-plasmonic spherical core-shell nanocomposite enclosed in a dielectric host medium is theoretically investigated by applying electrostatic approximation (esa) and Maxwell-Garnet effective medium theories to obtain magneto-optical parameters such as; effective electric permittivity and magnetic permeability as well as the corresponding extinction cross-sections. Likewise, for a fixed size of QDs (of radius nm) numerical analysis was performed to determine the plasmonic resonance effect by varying the parameters such as the metal fraction (β) and the dielectrics (εh) of the host medium on the magneto-plasmonic nanostructures (nss). The results depict that graphs of absorption, scattering, and extinction cross-sections as a function of wavelength have two positions of resonance peaks. The first set of peaks are in the ultraviolet (uv) and the second located in visible regions. These peaks originated from the strong coupling between a regular periodic vibrations of surface plasmons of silver (Ag) with the excitonic state of the dielectric/semiconductor at the internal ( ) and external (Ag/host) interfaces. As β increases, the absorption and scattering cross-sections are blue-shifted in the first peak and red shifted the second set of peaks. Similarly, as εh increases or as β decreases, the sets of resonance peaks for extinction cross-section gets enhanced; while keeping one of these parametric quantities fixed at once. The resulting surface plasmon resonance effect might be utilized in a variety of applications that combines both the plasmonic and magnetic core-shell nanostructures ranging from UV to Visible spectral regions.
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Pineider, Francesco, Esteban Pedrueza-Villalmanzo, Michele Serri, Addis Mekonnen Adamu, Evgeniya Smetanina, Valentina Bonanni, Giulio Campo, et al. "Plasmon-enhanced magneto-optical detection of single-molecule magnets." Materials Horizons 6, no. 6 (2019): 1148–55. http://dx.doi.org/10.1039/c8mh01548a.

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Daya Shanker and Rashimi Yadav. "The impact of magnetic field on the surface of carbon-insulator-GaAs Semiconductors which is tunable with a frequency range in the presence of surface magneto Plasmon." International Journal of Science and Research Archive 7, no. 2 (December 30, 2022): 306–11. http://dx.doi.org/10.30574/ijsra.2022.7.2.0279.

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In this paper, group velocity and frequency wave can be tuned with an applied external magnetic field when we increase the magnetic field from 0-4 tesla the frequency range can be reduced for given semiconductor materials. The excitation of the two layers of semiconducting material propagating band structures can be explained by the oscillations of electrons in semiconductors on applying the magnetic field, we study the effects of an external magnetic field in the band structure of C-insulator-GaAs materials in presence of surface magneto plasmons concerning plasma frequency below and above the surface band structures. The surface magneto plasmon bands get excited and show the dispersion relation with frequency range. The higher dispersion band moves in faster than the lower dispersion band structure of semiconducting material. The most energy is stored in a lower surface of magneto plasmon. When we increase the magnetic field, the surface of the semiconductor moves opposite to the lower surface of the semiconductor material. Here, we use semiconducting materials instead of metals because metal cannot support a wide frequency range on the magneto-plasmonic surface providing a good tunning property and more flexibility in this mechanism, which is widely useful in telecommunications, magneto-plasmonic devices, and data processing unit. This study is widely more promising due to its wavelength confinements of electromagnetic fields on semiconducting and insulating layers. Due to nonreciprocal effects, the dispersion of frequency waves varies with different band structures and group velocity also varies with two propagating directions among semiconductor-insulator-semiconductor layers.
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Manera, Maria Grazia, Gabriele Giancane, Simona Bettini, Ludovico Valli, Victor Borovkov, Adriano Colombelli, Daniela Lospinoso, and Roberto Rella. "MagnetoPlasmonic Waves/HOMO-LUMO Free π-Electron Transitions Coupling in Organic Macrocycles and Their Effect in Sensing Applications." Chemosensors 9, no. 10 (September 22, 2021): 272. http://dx.doi.org/10.3390/chemosensors9100272.

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Optical and magneto-optical surface plasmon resonance (MOSPR) characterization and preliminary sensing test onto single- and multi-layers of two organic macrocycles have been performed; TbPc2(OC11H21)8 phthalocyanine and CoCoPo2 porphyrin were deposited by the Langmuir-Schäfer (LS) technique onto proper Au/Co/Au magneto-optical transducers. Investigations of the MOSPR properties in Kretschmann configuration by angular modulation, gives us an indication about the potential discrimination of two organic macrocycles with absorption electronic transition in and out of the propagating plasmon energy spectral range. An improved molecular vapors sensitivity increase by the MOSPR sensing probe can be demonstrated depending on the overlap between the plasmonic probe energy and the absorption electronic transitions of the macrocycles under investigation. If the interaction between the plasmon energy and molecular HOMO-LUMO transition is preserved, a variation in the complex refractive index takes place. Under this condition, the magneto-plasmonic effect reported as 1/|MOSPR| signal allows us to increase the detection of molecules deposited onto the plasmonic transducer and their gas sensing capacity. The detection mechanism appears strongly enhanced if the Plasmon Wave/HOMO-LUMO transitions energy are in resonance. Under coupling conditions, a different volatile organic compounds (VOC) sensing capability has been demonstrated using n-butylamine as the trial molecule.
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Vavassori. "Magneto-Plasmonic Nanostructures and Crystals." Proceedings 26, no. 1 (September 5, 2019): 2. http://dx.doi.org/10.3390/proceedings2019026002.

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The fundamentals aspects of the key physics underlying the optical behavior of magneto-plasmonic nanoantennas are briefly introduced. A survey of applications to a variety of emerging technologies is presented as an example of their broad scientific and technological perspectives.
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Atmatzakis, Evangelos, Nikitas Papasimakis, Vassili Fedotov, Guillaume Vienne, and Nikolay I. Zheludev. "Magneto-optical response in bimetallic metamaterials." Nanophotonics 7, no. 1 (January 1, 2018): 199–206. http://dx.doi.org/10.1515/nanoph-2016-0162.

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AbstractWe demonstrate resonant Faraday polarization rotation in plasmonic arrays of bimetallic nano-ring resonators consisting of Au and Ni sections. This metamaterial design allows the optimization of the trade-off between the enhancement of magneto-optical effects and plasmonic dissipation. Nickel sections corresponding to as little as ~6% of the total surface of the metamaterial result in magneto-optically induced polarization rotation equal to that of a continuous nickel film. Such bimetallic metamaterials can be used in compact magnetic sensors, active plasmonic components, and integrated photonic circuits.
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Dissertations / Theses on the topic "Magneto plasmonic"

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Li, Zhi. "Controlled nanotherapies using magneto-plasmonic nanodomes." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667779.

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Con el objetivo de mejorar la concentración de los agentes terapéuticos dentro de tumores y maximizar sus efectos terapéuticos, esta Tesis se centró en el desarrollo de nuevos y versátiles nanocúpulas magneto-plasmónicas (i.e., nanopartículas dieléctricas con semicubiertas plasmónicas y ferromagnéticas) activadas y controladas externamente por luz y campos magnéticos, para la activación, amplificación y control eficiente de nanoterapias. La innovadora combinación de procesos de fabricación “top-down” y “bottom-up” nos ha permitido: i) fusionar nanomateriales que difícilmente podrían combinarse mediante síntesis química, ii) sintonizar las propiedades ferromagnéticas y ópticas, iii) lograr una funcionalización simple y una dispersión directa en soluciones acuosas, y iv) mantener bajo costo y escalabilidad. En primer lugar, desarrollamos nanocúpulas de Fe/Au con núcleos fluorescentes para terapias fototérmicas magnéticamente amplificadas y contraste de imagen multimodal. La variación del grosor de las capas de Fe y Au permitió obtener nanopartículas ferromagnéticas monodominio o con vórtice, coloidalmente estables, y con propiedades ópticas ampliamente sintonizables. Las capas gruesas de Fe proporcionaron una fuerte supresión de la dispersión y una alta absorción de la luz infrarroja cercana, que fueron clave para demostrar una alta eficiencia de conversión fototérmica (65%). La capacidad de concentrar magnéticamente las nanocúpulas en la región iluminada mejoró aún más la eficiencia de calentamiento local. La semi-cubierta de Fe/Au y el núcleo de polímero fluorescente proporcionaron intensos contrastes T2 en resonancia magnética nuclear, en absorción de rayos X y en fluorescencia. Los resultados in vitro mostraron una baja citotoxicidad y efectos fototérmicos mejorados magnéticamente para la erradicación de células cancerosas, lo que destacó el potencial biomédico. Para ganar control sobre los efectos fototérmicos, en la segunda parte desarrollamos un nuevo concepto de nano-calentadores/termómetros simultáneos, basado en la rotación magnética eficiente de las nanocúpulas magneto-plasmónicas altamente anisótropas. El análisis de la rotación de las nanocúpulas en función de la frecuencia magnética, permitió cuantificar la reducción de la viscosidad en el fluido que rodea a las nanocúpulas calentadas ópticamente, como un nuevo principio de nanotermometría. Estos nanotermómetros mostraron un límite de detección bajo de 0.05ºC, independencia de su concentración y un sistema detección mucho más simple y económico que los nanotermómetros luminiscentes. La capacidad de integrar el calentamiento y la termometría en una única nanoestructura y el uso del mismo láser para calentar y detectar fueron ventajas relevantes que pudieron demostrarse incluso en dispersiones celulares altamente concentradas. El objetivo final de la Tesis fue maximizar el potencial biomédico de las nanocúpulas para nanoterapias contra el cáncer mediante el desarrollo de nanocápsulas magnetoplasmónicas completamente biodegradables de PLGA@Fe/SiO2 cargadas con un fármaco, para conseguir: i) mayor biodegradabilidad, ii) reforzamiento del control magnético, iii) alta eficiencia fototérmica en ambas ventanas biológicas del infrarrojo cercano (63-67%), iv) mayor contraste de T2 en resonancia magnética nuclear y v) nanotermometros y biosensores integrados. Las nanocápsulas sin fármaco mostraron una toxicidad muy baja en cultivos celulares de largo plazo e in vivo en ratones. Se explotó el alto contraste de T2 para monitorizar la biodistribución in vivo de las nanocápsulas después de la inyección intravenosa, que mostró una acumulación en el hígado 1 h después de la inyección, y una recuperación casi total después de 96 h. Estos resultados preliminares son alentadores para su aplicación en terapias locales multiactivas. En conclusión, hemos mostrado cómo una estrategia de nanofabricación híbrida podría explotarse para desarrollar nanoestructuras con fuertes propiedades ferromagnéticas y plasmónicas que permitan el control y actuación externo y la visualización no invasiva. Los prometedores resultados preliminares in vitro e in vivo promueven un mayor desarrollo de esta nueva nanotecnología para aplicaciones clínicas.
With the aim of improving the concentration of the therapeutic agents inside tumours and maximizing their therapeutic effects, this Thesis focused on developing novel versatile magneto-plasmonic nanodomes (i.e. dielectric nanoparticles with plasmonic and ferromagnetic semi-shells) externally actuated and controlled by light and magnetic fields for efficient nanotherapy activation, amplification and control. The innovative combination of bottom-up and top-down fabrication processes have enabled us: i) merging nanomaterials that could be hardly combined by chemical synthesis, ii) fine tuning the magnetic and optical properties, iii) achieving simple functionalization and direct dispersion in water solutions, and iv) keeping low cost and scalability. Firstly, we developed Fe/Au nanodomes with fluorescent cores for magnetically amplified photothermal therapies and multimodal imaging. The variation of the Fe and Au layers thickness enabled attaining colloidally stable single domain or vortex ferromagnetic nanoparticles with widely tunable optical properties. Thick Fe layers provided strongly supressed scattering and high optical absorption in the near infrared, which were key to demonstrate high photothermal conversion efficiencies (ca. 65%). The capacity to magnetically concentrate the nanodomes at the illuminated region enhanced even further the local heating efficiency. The Fe/Au semi-shell and the fluorescent polymer core provided intense contrasts in T2 nuclear magnetic resonance, X-ray absorption, and fluorescence. The in vitro results showed low cytotoxicity and magnetically enhanced photothermal effects for cancer cell eradication, which highlighted the biomedical potential. To gain control on the photothermal effects, in the second part we developed a novel simultaneous nano-heating/thermometry concept, based on the efficient magnetic rotation of highly anisotropic magneto-plasmonic nanodomes. By analyzing the nanodomes rotation as a function of the magnetic frequency, we quantified and monitored the viscosity reduction in the fluid surrounding the optically heated nanodomes, as novel nanothermometry concept. This nanothermometers showed a low detection limit of 0.05ºC, independence on their concentration, and much simpler and cost-effective detection setup than luminescent nanothermometers. The capacity to integrate heating and thermometry in a single nanostructure and using the same laser for heating and detecting were relevant advantages that could be demonstrated even in highly concentrated cell dispersions. The final goal of the Thesis was maximizing the biomedical potential of the nanodomes for cancer nanotherapies by developing fully biodegradable drug loaded PLGA@Fe/SiO2 magnetoplasmonic nanocapsules to achieve: i) improved biodegradability, ii) reinforced magnetic actuation, iii) high photothermal conversion efficiency in both near-infrared biological windows (63-67%), iv) higher T2 contrast in nuclear magnetic resonance, and v) integrated nanothermometry and biosensing. The unloaded nanocapsules showed very low toxicity in vitro in long-term cell cultures, and in vivo in mice. The high T2 contrast was exploited to monitor the in vivo biodistribution of the nanocapsules after intravenous injection, which showed accumulation in the liver 1h after the injection, and almost total recovery after 96h. These preliminary results are encouraging for their application in multi-active local therapies. In conclusion, we have shown how a hybrid nanofabrication strategy could exploited to develop nanostructures with strong ferromagnetic and plasmonic properties enabling external control and non-invasive visualization. The in vitro and preliminary in vivo results encourage further technological development of this novel nanotechnology for clinical applications.
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George, Sebastian. "Optical and Magneto-Optical Measurements of Plasmonic Magnetic Nanostructures." Thesis, Uppsala universitet, Materialfysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-229511.

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At the interface between a metal and dielectric, it is possible for an electromagnetic wave to couple with the conduction electrons of the metal to create a coupled oscillation known as a surface plasmon. These surface plasmons can exhibit properties which are not shared with their purely electronic or electromagnetic components. Such unique properties include the ability to transmit plasmonic waves through sub-wavelength spaces, opening up the possibility of combining the high data density seen in photonics-based information technologies with the nanometer-scale electronic components of modern integrated circuitry. Other plasmon properties such as the highly resonant nature of plasmon excitation may potentially lend themselves to novel cancer treatments and medical probing techniques. In order to develop such technologies, a deeper understanding of surface plasmons and their relationship with a material’s properties and structure is necessary. In the present work, angle- and energy-resolved optical measurements for a square lattice of circular Fe20Pd80 islands are presented in the form of reflectivity and transmission maps, along with higher resolution reflectivity, transmission, and TMOKE measurements for a few specific wavelengths. A theoretical model describing the connection between plasmonic and magneto-optical behavior is described and compared with the experimental data, showing a very high correlation.
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Huber, Jana. "Plasmonic resonances in metallic nanoarrays." Thesis, Uppsala universitet, Materialfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-262269.

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The optical and magneto-optical response of plasmonic resonances in metallic nanoarrays out of square structures, either in holes or islands, were investigated. The excitation of the Bragg Plasmons takes place within a grating. Significant differences in the excited plasmon modes were seen by using p- or s-polarized light as well between the holes and islands sample. In order to investigate magneto-optical response from the magnetic nanostrucures, transverse magneto-optical Kerr effect (TMOKE) measurements were done with the result that there is a difference in holes and islands sample. Contrary to what is generally expected for the polarization dependence of TMOKE, a TMOKE signal for s-polarized light on the holes sample was measured.
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Brynolf, Max, and Rohini Sengupta. "Magneto-Plasmonic Gold & Nickel Core-Shell Structures." Thesis, Uppsala universitet, Materialfysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-387353.

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The presented project explores the optical properties of magnetoplasmonic Au/Ni core-shell structures. The work aims at controlling dimensions and parameters in order to influence and analyze the optical properties of the nanostructures. The softwares utilized for the simulations were COMSOL Multiphysics 5.1 and MATLAB. Experimental results were acquired from labs done at Ångströms laboratory. From the research based study where the gold to nickel ratio was influenced, it was observed that the transmissions for the nanostructures at the differing wavelengths produced transmissions of similar bearings. Modes for certain wavelengths were found in correspondence with the transmissions and could potentially render explanations for influence on the optical properties of the nanostructures. Conclusively, it can be stated that the optical properties of the nanostructures could be influenced and controlled by varying the dimensions and properties of the said structure. Differing dimensions corresponded to noteworthy changes in the cross sections, the transmissions as well as the mode formations.
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Loughran, Thomas. "Exploration of plasmonic antennas, for sub-wavelength magneto-optical Kerr imaging." Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/28077.

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This thesis outlines work performed with the intention of producing a novel near- field magneto-optical scanning microscope. This scanning microscope utilises a near field probe, produced through modification of existing atomic force micro- scopy (AFM) probes. In order to achieve the goal of strongly sub-wavelength res- olution imaging of magneto-dynamics, studies of planar plasmonic structures, and their interaction with magnetic materials were made. This was done in order to gain a better understanding of the complex interaction between plasmonic anten- nas, and magnetic materials. Investigations of planar systems, began with finite element modelling of the magneto optical Kerr effect (MOKE) effect, and its in- teraction with plasmonic structures. Initial modelling demonstrated the suitability of the commercial finite element modelling software ”COMSOL Multiphysics" for modelling magneto-optical effects. A series of plasmonic antennas were in- troduced to this model. The simplest of these (a gold disc of 140nm diameter) showed enhancement of the MOKE signal at resonance of up to 40x. A cut- cross antenna (consisting of two crossed cavities of 20nm width, and variable length and depth), which had been selected as a promising candidate for high field confinement, showed a generally smaller enhancement. However the field distribution from these structures was more suitable for the eventual near field microscopy applications. Similar real world structures were fabricated in mul- tilayer stacks consisting of P t(3nm)/ 4x[Co(0.5nm)/ P t(3nm)]/ T a2 O5 (various)/ 5 Au(100nm) layers. This was accomplished by focussed ion beam lithography (FIB) lithography through the gold layer. Magneto-optical characterisation of these structures was not possible, and this was believed to be due to FIB induced gal- lium poisoning of the magnetic layers. A gold floating technique was pursued in order to circumvent the gallium poisoning. New structures fabricated on gold films were shown to be resonant at optical wavelengths, through bright field trans- mission spectroscopic characterisation. However the floating technique in com- bination with the FIB beam produced capillaries that adhere to the underside of the gold film, which again prevent magneto-optical characterisation. Concurrent to the development of planar antenna structures, a platform for performing near field optical measurements of magnetic materials utilising an AFM, and modified probes was developed. This platform was used to obtain time resolved images of permalloy elements with a spatial resolution comparable to that achieved with a diffraction limited laser spot. A number of potential techniques for AFM probe modification that could be used to produce strongly sub-wavelength resolution time-resolved imaging have been explored.
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Bertorelle, Fabrizio. "Magneto-plasmonic nanostructures based on laser ablated nanoparticles of Au and FeOx for nanomedicine applications." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3422266.

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In the last years, gold and iron oxide nanoparticles have received an increasing interest in nanomedicine and biotechnology thanks to their properties. Gold nanoparticles (AuNPs) are biocompatible and possess useful optical properties that make them a powerful imaging tool using, for example, SERS spectroscopy. On the other hand, iron oxide nanoparticles (FeOxNPs, in particular those made of magnetite) are interesting because of their magnetic properties. Combining gold and iron oxide nanoparticles in a unique system, one obtains a magneto-plasmonic material in which the characteristics properties of the two nanoparticles are present. The use of magneto-plasmonic nanostructured materials in nanomedicine is a quite young research topic and one of the reasons is the elaborated synthesis often required. Several passages are needed also for the purification of these nanosystem from chemicals used during synthesis, which is a crucial point when the final application is in nanomedicine or nanobiology. In this work we will show the synthesis of two magneto-plasmonic systems made of gold and iron oxide nanoparticles. AuNPs and FeOxNPs are synthetized with the laser ablation synthesis in solution (LASiS) method. LASiS is a green chemistry method, which allows to obtain chemical-free and stable nanoparticles in water solution. With LASiS, purification passages are unnecessary or reduced to a minimum and no chemicals that could interfere in biological environment are present. In chapter 2 it will be reported the synthesis of gold and iron oxide nanoclusters (AuFeOxNC) in which the aggregation between particles is performed without the use of chemicals, but exploiting the surface charges of nanoparticles. The use of such nanoclusters in cells guiding and sorting and imaging will be also shown. In chapter 3, the synthesis of another magneto-plasmonic system in which AuNPs and FeOxNPs are arranged in a core-shell-satellite structure, is reported. Also in this case, purification passages are reduced thanks to the laser ablation synthesis. This system is conjugated with an antibody and shows high performance in immunomagnetic sorting and photothermal treatment of cancer cells. The arguments developed in the thesis are introduced in the first chapter.
Negli ultimi anni, nanoparticelle di oro e ossido di ferro hanno ricevuto un interesse crescente in campi come la nanomedicina e la biotecnologia grazie alle loro proprietà. Le nanoparticelle di oro (AuNPs) sono biocompatibili e possiedono utili proprietà ottiche che le rendono un potente strumento di imaging usando, per esempio, la spettroscopia SERS.Le nanoparticelle di ossido di ferro (FeOxNP, in particolare quelle di magnetite) sono interessanti a causa delle loro proprietà magnetiche. Combinando i due tipi di particelle in un unico sistema si ottiene un materiale magneto-plasmonico, nel quale si manifestano le proprietà di entrambe le nanoparticelle. L'uso di materiali magneto-plasmonici in nanomedicina è un campo di ricerca abbastanza giovane e uno dei motivi è la sintesi elaborata che spesso questi materiali richiedono. Durante la sintesi sono necessari diversi passaggi di purificazione dalle sostanze chimiche impiegate, passaggi che sono fondamentali quando l'applicazione finale è la nanomedicina o la nanobiologia.In questa tesi mostreremo la sintesi di due sistemi magneto-plasmonici composti da nanoparticelle di oro e ossido di ferro. AuNPs e FeOxNPs sono sintetizzate con il metodo dell'ablazione laser in soluzione (LASiS). Con l'ablazione laser i passaggi di purificazione non sono necessari e non sono presenti sostanze chimiche che possono interferire in ambiente biologico. Nel capitolo due della tesi mostreremo la sintesi di nanocluster di nanoparticelle di oro e ossido di ferro nei quali i due tipi di particelle sono aggregate senza l'utilizzo di sostanze chimiche. Questi nanocluster saranno utilizzati per guidare magneticamente cellule in soluzione, per la selezione di cellule e imaging. Nel capitolo tre viene riportata la sintesi di un altro sistema magneto-plasmonico in cui AuNPs e FeOxNPs sono arrangiate in una struttura di tipo core-shell-satellite. Anche in questo caso i passaggi di purificazione sono ridotti grazie all'utilizzo dell'ablazione laser. Questo sistema viene poi completato coniugando un anticorpo e mostra ottime performance nella selezione immunomagnetica e nel trattamento fototermico di cellule cancerose. Gli argomenti trattati nella tesi sono introdotti nel primo capitolo.
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Spitzer, Felix [Verfasser], Ilya [Akademischer Betreuer] Akimov, and Manfred [Gutachter] Bayer. "Magneto-optical intensity effects in hybrid plasmonic structures / Felix Spitzer ; Gutachter: Manfred Bayer ; Betreuer: Ilya Akimov." Dortmund : Universitätsbibliothek Dortmund, 2019. http://d-nb.info/1178115887/34.

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Piatek, Anna [Verfasser], and Stephan [Akademischer Betreuer] Barcikowski. "Laser generated magneto-plasmonic Fe-Au Nanoparticles : Formation, Real Structure and Properties / Anna Piatek ; Betreuer: Stephan Barcikowski." Duisburg, 2020. http://d-nb.info/1218465328/34.

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Pohl, Martin [Verfasser], Ilya [Akademischer Betreuer] Akimov, and Heinz [Gutachter] Hövel. "Ultrafast optical phenomena in magneto-plasmonic crystals and magnetically ordered materials / Martin Pohl. Betreuer: Ilya Akimov. Gutachter: Heinz Hövel." Dortmund : Universitätsbibliothek Dortmund, 2014. http://d-nb.info/1105476111/34.

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Loiselet, Ophelliam. "Synthèse et caractérisation d’agrégats bimétalliques pour la magnéto-plasmonique." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1033/document.

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Depuis plusieurs années les physiciens de la matière condensée s'intéressent aux propriétés optiques et magnétiques des nanoparticules métalliques. Deux propriétés restent largement étudiées : les résonances plasmon localisées et l'anisotropie magnétique à l'échelle nanométrique. Ces deux effets résultant de propriétés électroniques bien différentes sont habituellement rencontrés dans des nanosystèmes distincts. Depuis les années 2000 des études ont montré qu'il était possible de bénéficier de ces deux caractéristiques dans un seul et même système nanométrique. Dans cette thèse, nous nous intéresserons à la combinaison des propriétés magnétiques et plasmoniques dans des systèmes de taille inférieure à la dizaine de nanomètres: les agrégats bimétalliques de CoAg et de CoAu synthétisés par voie physique sous ultravide encapsulés en matrice (alumine et carbone). Nous nous intéresserons à la structure de ces agrégats bimétalliques de différentes stœchiométries et à l'effet de leur environnement à travers l'étude de leurs propriétés optiques, magnétiques et électroniques (par spectroscopie électronique par perte d'énergie (EELS) sur des particules individuelles). Nous montrerons l'effet de la matrice, carbone ou alumine, sur la structure des agrégats ainsi que sur leurs propriétés magnétiques (moment par agrégat, anisotropie). En optique nous verrons également l'importance de la stœchiométrie entre métal noble et cobalt sur les phénomènes d'amortissement et de décalage de résonance plasmon. Enfin nous montrerons la répartition spatiale des plasmons de surface sur des particules unique par des mesures de STEM-EELS
For several years condensed matter physicists have been interested in the optical and magnetic properties of metallic nanoparticles. Two properties remain largely studied: localized plasmon resonances and magnetic anisotropy at the nanoscale. These two effects resulting from very different electronic properties which are usually encountered in separate nanosystems. Since the 2000's, studies have shown that it is possible to benefit from these two characteristics in a single nanometric system. In this thesis, we will focus on the combination of magnetic and plasmonic properties in systems of size less than ten nanometers: bimetallic clusters of CoAg and CoAu synthesized physically under ultrahigh vacuum and embedded in a matrix (alumina and carbon). We will study the structure of these bimetallic clusters of different stoichiometries and the effect of their environment through the investigation of their optical, magnetic and electronic properties (by electron energy loss spectroscopy (EELS) on individual particles ). We will show the effect of the matrix, carbon or alumina, on the structure of the clusters as well as on their magnetic properties (moment by cluster, anisotropy). In optics we will also see the importance of stoichiometry between noble metal and cobalt on the phenomena of the damping and shifting of the plasmon resonance. Finally we will show the spatial distribution of surface plasmons on single particles by STEM-EELS measurements
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Books on the topic "Magneto plasmonic"

1

Denkova, Denitza. Optical Characterization of Plasmonic Nanostructures: Near-Field Imaging of the Magnetic Field of Light. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28793-5.

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Manisekaran, Ravichandran. Design and Evaluation of Plasmonic/Magnetic Au-MFe2O4 (M-Fe/Co/Mn) Core-Shell Nanoparticles Functionalized with Doxorubicin for Cancer Therapeutics. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67609-8.

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service), SpringerLink (Online, ed. Electromagnetic Radiation of Electrons in Periodic Structures. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

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Magnetism and synchrotron radiation: New trends. Heidelberg: Springer, 2010.

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Wohlbier, Thomas. Nanohybrids. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901076.

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The book covers preparation, designing and utilization of nanohybrid materials for biomedical applications. These materials can improve the effectiveness of drugs, promote high cell growth in new scaffolds, and lead to biodegradable surgical sutures. The use of hybrid magneto-plasmonic nanoparticles may lead to non-invasive therapies. The most promising materials are based on silica nanostructures, polymers, bioresorbable metals, liposomes, biopolymeric electrospun nanofibers, graphene, and gelatin. Much research focuses on the development of biomaterials for cell regeneration and wound healing applications.
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Horing, Norman J. Morgenstern. Random Phase Approximation Plasma Phenomenology, Semiclassical and Hydrodynamic Models; Electrodynamics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791942.003.0010.

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Chapter 10 reviews both homogeneous and inhomogeneous quantum plasma dielectric response phenomenology starting with the RPA polarizability ring diagram in terms of thermal Green’s functions, also energy eigenfunctions. The homogeneous dynamic, non-local inverse dielectric screening functions (K) are exhibited for 3D, 2D, and 1D, encompassing the non-local plasmon spectra and static shielding (e.g. Friedel oscillations and Debye-Thomas-Fermi shielding). The role of a quantizing magnetic field in K is reviewed. Analytically simpler models are described: the semiclassical and classical limits and the hydrodynamic model, including surface plasmons. Exchange and correlation energies are discussed. The van der Waals interaction of two neutral polarizable systems (e.g. physisorption) is described by their individual two-particle Green’s functions: It devolves upon the role of the dynamic, non-local plasma image potential due to screening. The inverse dielectric screening function K also plays a central role in energy loss spectroscopy. Chapter 10 introduces electromagnetic dyadic Green’s functions and the inverse dielectric tensor; also the RPA dynamic, non-local conductivity tensor with application to a planar quantum well. Kramers–Krönig relations are discussed. Determination of electromagnetic response of a compound nanostructure system having several nanostructured parts is discussed, with applications to a quantum well in bulk plasma and also to a superlattice, resulting in coupled plasmon spectra and polaritons.
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Denkova, Denitza. Optical Characterization of Plasmonic Nanostructures: Near-Field Imaging of the Magnetic Field of Light. Springer, 2018.

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Denkova, Denitza. Optical Characterization of Plasmonic Nanostructures: Near-Field Imaging of the Magnetic Field of Light. Springer, 2016.

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Denkova, Denitza. Optical Characterization of Plasmonic Nanostructures: Near-Field Imaging of the Magnetic Field of Light. Springer London, Limited, 2016.

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Singh, M. R. Electronic, Photonic, Plasmonic, Phononic and Magnetic Properties of Nanomaterials: London, Canada, 12-16 August 2013. Unknown Publisher, 2014.

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Book chapters on the topic "Magneto plasmonic"

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de Julián Fernández, César, and Francesco Pineider. "Magneto-Plasmonic Nanoparticles." In New Trends in Nanoparticle Magnetism, 107–36. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60473-8_5.

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Belotelov, V. I., A. N. Kalish, and A. K. Zvezdin. "Magneto-Optics of Plasmonic Crystals." In Magnetophotonics, 51–106. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35509-7_4.

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Manera, M. G., G. S. Masi, G. Montagna, F. Casino, R. Rella, A. Garcia-Martin, G. Armelles, et al. "Plasmonic and Magneto-Plasmonic Nanostructured Materials for Sensors and Biosensors Application." In Lecture Notes in Electrical Engineering, 203–8. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1324-6_31.

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Tomita, Satoshi. "Spectroscopic Ellipsometry and Magneto-Optical Kerr Spectroscopy of Magnetic Garnet Thin Films Incorporating Plasmonic Nanoparticles." In Ellipsometry at the Nanoscale, 325–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33956-1_9.

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Martín Becerra, Diana. "Magnetic Modulation of SPP in Au/Co/Au Trilayers." In Active Plasmonic Devices, 43–58. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48411-2_4.

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Kochergin, Vladimir, and Philip R. Swinehart. "Improved Magneto-Optical Imaging Films Employing Surface Plasmon Resonance." In Magneto-Optical Imaging, 337–44. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-1007-8_43.

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Pappas, S. D., and E. Th Papaioannou. "Magneto-plasmonics in Purely Ferromagnetic Sub wavelength Arrays." In 21st Century Nanoscience – A Handbook, 17–1. Boca Raton, Florida : CRC Press, [2020]: CRC Press, 2020. http://dx.doi.org/10.1201/9780429351617-17.

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Denkova, Denitza. "Magnetic Near-Field Imaging of Increasingly Complex Plasmonic Antennas." In Springer Theses, 63–79. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28793-5_4.

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Anghinolfi, Luca. "Composite Magnetic-Plasmonic Media Based on Au/LiF Arrays." In Self-Organized Arrays of Gold Nanoparticles, 113–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30496-5_7.

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Dintinger, José, and Toralf Scharf. "Plasmonic Nanoparticle-Based Metamaterials: From Electric to Magnetic Response." In Amorphous Nanophotonics, 327–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32475-8_13.

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Conference papers on the topic "Magneto plasmonic"

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Nikolova, Dessislava, and Andrew J. Fisher. "Cavity-enhanced magneto-plasmonic effects." In SPIE NanoScience + Engineering, edited by Mark I. Stockman. SPIE, 2012. http://dx.doi.org/10.1117/12.981902.

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Šablinskas, Valdas, Agne Zdaniauskiene, Sonata Adomaviciutė-Grabusove, Evaldas Stankevičius, Vita Petrikaite, Tatjana Charkova, Lina Mikoliunaite, Romualdas Trusovas, Algirdas Selskis, and Gediminas Niaura. "Magneto-plasmonic nanoparticles for SERS." In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX, edited by Yu-Jung Lu, Takuo Tanaka, and Din Ping Tsai. SPIE, 2021. http://dx.doi.org/10.1117/12.2597199.

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Kolmychek, Irina A., Tatyana V. Murzina, and Oleg A. Aktsipetrov. "Nonlinear magneto-optical transversal Kerr effect in magneto-plasmonic nanosandwiches." In SPIE NanoScience + Engineering, edited by Mark I. Stockman. SPIE, 2009. http://dx.doi.org/10.1117/12.824102.

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Baryshev, Stepan, Sergey B. Odinokov, and Alexey S. Kuznetsov. "Plasmonic magneto-optical structure for visualization of magnetic information holders." In Optical Sensing and Detection, edited by Francis Berghmans and Anna G. Mignani. SPIE, 2018. http://dx.doi.org/10.1117/12.2306908.

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Vavassori, Paolo. "Magneto-plasmonic nanostructures and crystals (Conference Presentation)." In Spintronics XII, edited by Henri-Jean M. Drouhin, Jean-Eric Wegrowe, and Manijeh Razeghi. SPIE, 2019. http://dx.doi.org/10.1117/12.2528820.

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Abadian, Sevag, Giovanni Magno, Vy Yam, and Beatrice Dagens. "Magneto-Plasmonic Effects for Non-Reciprocal Waveguides." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8873144.

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Kolmychek, I. A., T. V. Murzina, O. A. Aktsipetrov, A. Cebollada, and G. Armelles. "Nonlinear-Optical Studies of Magneto-Plasmonic Nanosandwiches." In Frontiers in Optics. Washington, D.C.: OSA, 2008. http://dx.doi.org/10.1364/fio.2008.fthc3.

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Kuz'michev, A. N., D. O. Ignatyeva, A. N. Kalish, and V. I. Belotelov. "Magneto-optical effects in plasmonic slot waveguides." In 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS). IEEE, 2015. http://dx.doi.org/10.1109/metamaterials.2015.7342558.

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Otipka, P., J. Vlček, M. Lesňák, and J. Sobota. "Magneto-plasmonic response as a perspective tool to magnetic field sensing." In SPIE Optics + Optoelectronics, edited by Francesco Baldini, Jiri Homola, and Robert A. Lieberman. SPIE, 2015. http://dx.doi.org/10.1117/12.2178458.

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Rella, Roberto, Maria Grazia Manera, Adriano Colombelli, Giovanni Montagna, C. de Julian Fernandez, Franca Albertini, and A. Convertino. "Propagating and Localised Plasmonic and Magneto-Plasmonic Transductors for Gas and Biosensing Applications." In 2015 1st Workshop on Nanotechnology in Instrumentation and Measurement (NANOFIM). IEEE, 2015. http://dx.doi.org/10.1109/nanofim.2015.8425347.

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Reports on the topic "Magneto plasmonic"

1

Samtaney, R., N. F. Loureiro, D. A. Uzdensky, A. A. Schekochihin, and S. C. Cowley. Formation of Plasmoid Chains in Magnetic Reconnection. Office of Scientific and Technical Information (OSTI), September 2009. http://dx.doi.org/10.2172/965277.

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Loureiro, Nuno. Magnetic Reconnection in Strongly-Magnetized, Weakly-Collisional Plasmas: Onset, Turbulence, and Energy-Partition in 3D, Plasmoid-Dominated Regimes. Office of Scientific and Technical Information (OSTI), January 2022. http://dx.doi.org/10.2172/1842655.

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