Gotowe bibliografie tematyczne / Mie spectroscopy

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Gotowa bibliografia na temat „Mie spectroscopy”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 22 czerwca 2025

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Artykuły w czasopismach na temat "Mie spectroscopy"

Kohler, A., J. Sulé-Suso, G. D. Sockalingum, et al. "Estimating and Correcting Mie Scattering in Synchrotron-Based Microscopic Fourier Transform Infrared Spectra by Extended Multiplicative Signal Correction." Applied Spectroscopy 62, no. 3 (2008): 259–66. http://dx.doi.org/10.1366/000370208783759669.

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We present an approach for estimating and correcting Mie scattering occurring in infrared spectra of single cells, at diffraction limited probe size, as in synchrotron based microscopy. The Mie scattering is modeled by extended multiplicative signal correction (EMSC) and subtracted from the vibrational absorption. Because the Mie scattering depends non-linearly on α, the product of the radius and the refractive index of the medium/sphere causing it, a new method was developed for estimating the Mie scattering by EMSC for unknown radius and refractive index of the Mie scatterer. The theoretically expected Mie contributions for a range of different α values were computed according to the formulae developed by Van de Hulst (1957). The many simulated spectra were then summarized by a six-dimensional subspace model by principal component analysis (PCA). This subspace model was used in EMSC to estimate and correct for Mie scattering, as well as other additive and multiplicative interference effects. The approach was applied to a set of Fourier transform infrared (FT-IR) absorbance spectra measured for individual lung cancer cells in order to remove unwanted interferences and to estimate ranges of important α values for each spectrum. The results indicate that several cell components may contribute to the Mie scattering.

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Pappas, Dimitri, Tiffany L. Correll, Nathan C. Pixley, Benjamin W. Smith, and J. D. Winefordner. "Detection of Mie Scattering Using a Resonance Fluorescence Monochromator." Applied Spectroscopy 56, no. 9 (2002): 1237–40. http://dx.doi.org/10.1366/000370202760295502.

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The use of a resonance fluorescence monochromator (RFM) is described as a method for detecting Mie scatter. The detector has a spectral resolution limited by the atomic vapor used in the system (400 MHz for cesium). The RFM is used to detect Mie scatter from a particulate suspension, and deconvolution methods are used to extract the Mie scatter spectrum from the instrument response. The Mie scattering linewidth (140 MHz) is close to the literature value (100 MHz for air). Methods to reduce the linewidth of atomic vapor filters are briefly described.

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Assadillayev, Artyom, Tatsuki Hinamoto, Minoru Fujii, Hiroshi Sugimoto, and Søren Raza. "Thermal near-field tuning of silicon Mie nanoparticles." Nanophotonics 10, no. 16 (2021): 4161–69. http://dx.doi.org/10.1515/nanoph-2021-0424.

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Abstract Tunable high-refractive-index nanostructures are highly desired for realizing photonic devices with a compact footprint. By harnessing the large thermo-optic effect in silicon, we show reversible and wide thermal tuning of both the far- and near-fields of Mie resonances in isolated silicon nanospheres in the visible range. We perform in situ heating in a transmission electron microscope and electron energy-loss spectroscopy to show that the Mie resonances exhibit large spectral shifts upon heating. We leverage the spectral shifts to demonstrate near-field tuning between different Mie resonances. By combining electron energy-loss spectroscopy with energy-dispersive X-ray analysis, we show a reversible and stable operation of single silicon nanospheres up to a temperature of 1073 K. Our results demonstrate that thermal actuation offers dynamic near-field tuning of Mie resonances, which may open up applications in tunable nonlinear optics, Raman scattering, and light emission.

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Shao Litang, 邵理堂, 王式民 Wang Shimin, 汤光华 Tang Guanghua, and 许传龙 Xu Chuanlong. "Influence of Particle Mie Scattering on Differential Optical Absorption Spectroscopy." Acta Optica Sinica 29, no. 3 (2009): 594–601. http://dx.doi.org/10.3788/aos20092903.0594.

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Ignatyeva, Daria O., and Vladimir I. Belotelov. "Magneto-Optical Spectroscopy of Short Spin Waves by All-Dielectric Metasurface." Nanomaterials 12, no. 23 (2022): 4180. http://dx.doi.org/10.3390/nano12234180.

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The optical method of spin dynamics measurements via the detection of various magneto-optical effects is widely used nowadays. Besides it being a convenient method to achieve time-resolved measurements, its spatial resolution in the lateral direction is limited by a diffraction limit for the probe light. We propose a novel approach utilizing a Mie-resonance-based all-dielectric metasurface that allows for the extraction of a signal of a single submicron-wavelength spin wave from the wide spin precession spectra. This approach is based on the possibility of designing a metasurface that possesses nonuniform magneto-optical sensitivity to the different nanoscale regions of the smooth magnetic film due to the excitation of the Mie modes. The metasurface is tuned to be unsensitive to the long-wavelength spin precession, which is achieved by the optical resonance-caused zeroing of the magneto-optical effect for uniform magnetization in the vicinity of the resonance. At the same time, such a Mie-supporting metasurface exhibits selective sensitivity to a narrow range of short wavelengths equal to its period.

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Pinho, Bruno, and Laura Torrente-Murciano. "Continuous manufacturing of silver nanoparticles between 5 and 80 nm with rapid online optical size and shape evaluation." Reaction Chemistry & Engineering 5, no. 2 (2020): 342–55. http://dx.doi.org/10.1039/c9re00452a.

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Flexible manufacturing technology of nanoparticles with sizes between 5 and 80 nm. This unique size flexibility is enabled by coupling rapid online spectroscopy and a mathematical Mie theory-based algorithm for size and shape evaluation.

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Hariri, Sara, Sahar Barzegari B., Kamyar Keshavarz F., et al. "FTIR bio-spectroscopy scattering correction using natural biological characteristics of different cell lines." Analyst 144, no. 19 (2019): 5810–28. http://dx.doi.org/10.1039/c9an00811j.

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The Mie type scattering makes the FTIR spectra of biological samples unreliable. Here, natural biological characteristics have been used instead of mathematical estimations to solve the scattering problem, which resulted the best corrected spectra of cells.

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Sullenberger, R. M., S. M. Redmond, D. Crompton, A. M. Stolyarov, and W. D. Herzog. "Spatially-resolved individual particle spectroscopy using photothermal modulation of Mie scattering." Optics Letters 42, no. 2 (2017): 203. http://dx.doi.org/10.1364/ol.42.000203.

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Fung, K. H., I. N. Tang, and H. R. Munkelwitz. "Study of condensational growth of water droplets by Mie resonance spectroscopy." Applied Optics 26, no. 7 (1987): 1282. http://dx.doi.org/10.1364/ao.26.001282.

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Fontes, A., A. A. R. Neves, W. L. Moreira, et al. "Double optical tweezers for ultrasensitive force spectroscopy in microsphere Mie scattering." Applied Physics Letters 87, no. 22 (2005): 221109. http://dx.doi.org/10.1063/1.2137896.

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Rozprawy doktorskie na temat "Mie spectroscopy"

Bassan, Paul. "Light scattering during infrared spectroscopic measurements of biomedical samples." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/light-scattering-during-infrared-spectroscopic-measurements-of-biomedical-samples(a2a41f54-0e61-443a-bd32-faf8f65806a7).html.

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Infrared (IR) spectroscopy has shown potential to quickly and non-destructively measure the chemical signatures of biomedical samples such as single biological cells, and tissue from biopsy. The size of a single cell (diameter ~10-50 µm) are of a similar magnitude to the mid-IR wavelengths of light (~1-10 µm) giving rise to Mie-type scattering. The result of this scattering is that chemical information is significantly distorted in the IR spectrum.Distortions in biomedical IR spectra are often observed as a broad oscillating baseline on which the absorbance spectrum is superimposed. A spectral feature commonly observed is the sharp decrease in intensity at approximately 1700 cm-1, next to the Amide I band (~1655 cm-1), which pre-2009 was called the 'dispersion artefact'. The first contributing factor towards the 'dispersion artefact' investigated was the reflection signal arising from the air to sample interface entering the collection optics during transflection experiments. This was theoretically modelled, and then experimentally verified. It was shown that IR mapping could be done using reflection mode, yielding information from the optically dense nucleus which previously caused extinction of light in transmission mode.The most important contribution to the spectral distortions was due to resonant Mie scattering (RMieS) which occurs when the scattering particle is strongly absorbing such as biomedical samples. RMieS was shown to explain both the baselines in IR spectra, and the 'dispersion artefact' and was validated using a model system of poly(methyl methacrylate) (PMMA) of varying sizes from 5 to 15 µm. Theoretical simulations and experimental data had an excellent match thus proving the theory proposed. With an understanding of the physics/mathematics of the spectral distortions, a correction algorithm was written, the RMieS extended multiplicative signal correction (RMieS-EMSC). This algorithm modelled the measured spectrum as superposition of a first guess (the reference spectrum) which was of a similar biochemical composition to the pure absorbance spectrum of the sample, and a scattering curve. The scattering curve was estimated as the linear combination of a database of a large number of scattering curves covering a range of feasible physical parameters. Simulated and measured data verified that the RMieS-EMSC increased IR spectral quality.

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Yahiaoui, Riad. "Caractérisation de métamatériaux pour applications millimétriques et submillimétriques." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14321/document.

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Ce mémoire de thèse est consacré à l'étude, la fabrication et la caractérisation de métamatériaux en vue d'applications dans le domaine millimétrique et submillimétrique. Dans un premier temps, nous avons tenu à rappeler les propriétés remarquables ainsi que les processus physiques mis en jeux par cette nouvelle génération de matériaux. Le manuscrit regroupe essentiellement des résultats issus d’études réalisées sur différentes structures en microondes et en terahertz : métamatériaux composites, métamatériaux entièrement diélectriques à base de résonances de Mie, ouvertures sublongueur d’ondes basés sur la transmission extraordinaire assistée par plasmons de surface. Nos investigations ont permis d’ouvrir la voie à de multiples applications dans les domaines des capteurs et des télécommunications<br>This PhD dissertation is dedicated to the study, fabrication and characterization of metamaterials for millimeter and submillimeter applications. First of all we proposed to remind the extraordinary properties and physical processes involving within this new generation of materials. The manuscript contains results obtained from studies performed on different categories of metamaterials at microwave and terahertz frequencies: composite metamaterials, all dielectric metamaterials based on Mie resonances, subwavelength apertures based on the extraordinary transmission assisted by surface Plasmon polaritons. Our investigations have contributed to open the path to multiple potential applications in the field of sensors and telecommunications

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Trevitt, Adam John. "Ion trap studies of single microparticles : optical resonances and mass spectrometry /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00003039.

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Nonoyama, Akihisa. "Using Multiwavelength UV-Visible Spectroscopy for the Characterization of Red Blood Cells: An Investigation of Hypochromism." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000508.

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Flajšmanová, Jana. "Měření extinkčních spekter opticky zachycených plazmonických nanočástic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232025.

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This thesis deals with the dark-field imaging and the optical spectroscopy of optically trapped plasmonic nanoparticles. The optical trapping and the characterization of a single particle or multiple nanoparticles as well are demonstrated. The number of the optically trapped particles can be estimated from the dark-field scattering intensity. Experiments show the presence of the interparticle coupling among trapped metallic nanoparticles which has not been observed in case of dielectric particles. The scattering spectra of the plasmonic nanoparticles were compared with theoretical models based on the Mie theory and the Discrete dipole approximation.

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Selmke, Markus. "Photothermal Single Particle Detection in Theory & Experiments." Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-126286.

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The dissertation presents theoretical and experimental studies on the physical origin of the signal in photothermal microscopy of single particles. This noninvasive optical far field microscopy scheme allows the imaging and detection of single absorbing nanoparticles. Based on a heat-induced pertur- bation in the refractive index in the embedding medium of the nanoscopic absorber, a corresponding probe beam modification is measured and quantified. The method is well established and has been applied since its first demonstration in 2002 to the imaging and characterization of various absorbing particle species, such as quantum dots, single molecules and nanoparticles of different shapes. The extensive theoretical developments presented in this thesis provide the first quantitative assess- ment of the signal and at the same time enlarge its phenomenology and thereby its potential. On the basis of several approximation schemes to the Maxwell equations, which fundamentally gov- ern the interaction of light with inhomogeneities, several complementing models are devised which describe the photothermal signal both qualitatively and quantitatively. In succession an interdepen- dent and self-consistent set of theoretical descriptions is given and allows important experimental consequences to be drawn. In consequence, the photothermal signal is shown to correspond to the action of a nanoscopic (thermal) lens, represented by the spherically symmetric refractive index pro- file n(r) which accompanies the thermal expansion of the absorber’s environment. The achieved quantification allows the direct measurement of absorption cross-sections of nanoparticles. Further, a qualitatively new phenomenology of the signal is unraveled and experimentally demonstrated. The separate roles of the probing and the heating beams in photothermal microscopy is dismantled and the influence of their relative alignment shown to allow for a controlled adjustment of the effective detection volume. For the first time, both positive and negative signals are demonstrated to occur and to be the characteristic signature of the lens-like action on the probe beam. The detection of the probe beam’s modification is also shown to sensitively depend on the aperture used in the detection chan- nel, and a signal optimization is shown to be feasible. Also, a generalization of the detectable signal via the use of a quadrant photodiode is achieved. Specifically, measuring the far field beam deflec- tion the result of the beam passing the lens off-center manifests in a laterally split detection volume. Hereby, finally each classical photothermal spectroscopic techniques has been shown to possess its microscopic counterpart. Central to the understanding of this generalized and new phenomenology is a scalar wave-optical model which draws an analogy between the scattering of a massive particle wave-packet by a Coulomb potential and the deflection of a focused beam by a photonic potential connected with the thermal lens. The significance of the findings is demonstrated by its methodological implications on photother- mal correlation spectroscopy in which the diffusion dynamics of absorbing colloidal particles can be studied. The unique split focal detection volumes are shown to allow the sensitive measurement of a deterministic velocity field. Finally, the method is supplemented by a newly introduced sta- tistical analysis method which is capable of characterizing samples containing a heterogeneous size distribution.

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Kemsley, Evelyn Katherine. "Some problems in quantitative mid-infrared spectroscopy." Thesis, Open University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264465.

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Rini, Matteo. "Femtosecond mid-infrared spectroscopy of elementary photoinduced reactions." Doctoral thesis, [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=970187912.

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Lewis, Michael K. "Spectroscopy of semiconductor nanostructures for Mid-IR photonics." Thesis, University of Surrey, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604321.

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Quantum dot structures of InAs(Sb)/InGaAs/InP designed as easy to fabricate, low cost "mid-IR emitting lasers, have been spectroscopically characterised using temperature and power dependent photoluminescence. These structures have been simulated using a truncated pyramid structure in the Nextnano software package. The results show that the observed experimental data is the result Of a . bimodal dot distribution in both samples. In the InAs case, the bimodal behaviour is the result of varying width dots (35nm and 38.5nm). In the InAsSb case the dot groups were calculated to contain - 10% and zero antimony, indicating difficulties during the growth process. Additionally the InAs dots were found to have a dominant radiative recombination process, while the InAsSb dots were found to be affected by a defect related recombination process. It is suggested this is a result of increased defects formed by the larger lattice mismatch. InAs/InAsSb superlattice structures have potential as mercury cadmium telluride (MCT) alternative mid-IR photo-detectors, and are predicted to not suffer from Ga-related defect recombination as other superlattice structures. High pressure techniques and modelling were used to probe the defect level in these structures. High pressure, low temperature photoluminescence experiments were performed using the sapphire ball cell to move the conduction / band minima up in energy until overlap with the predicted defect level state was achieved. This resulted in a decrease in the measured integrated intensity of the sample due to carriers recombining via the defect states. Additionally power dependent measurements at high and low pressure were performed and an observed shift from radiative to defect dominated recombination was observed. This provides the first experimental evidence of a defect level positioned above the conduction band edge. This means that SRH recombination in the forbidden band gap will not be a contributing factor to the dark currents in InAs/InAsSb superlattice photo -detectors showing their promise for low dark current mid-IR detectors.

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Manfred, Katherine Marya. "Mid-infrared laser spectroscopy for trace gas detection." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:0d562d89-8a28-4122-8154-bf14dbbddd9a.

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Laser spectroscopy offers a powerful and adaptable toolkit of techniques for sensitive and selective gas detection. New semiconductor laser sources that can emit high power midinfrared radiation at room temperature have reawakened interest in exploiting the spectrally separated, strongly absorbing ro-vibrational transitions in this region. The aim of this thesis is the demonstration of absorption spectroscopy methods with interband cascade lasers (ICLs) and quantum cascade lasers (QCLs) to detect gases relevant to physiology and atmospheric science. Modulation of laser frequency via the injection current can increase instrument performance and prevent long-term drifts in laser output. An 8.2 μm QCL was locked to a CH4 rovibrational line using a 3f signal, limiting the laser frequency deviation to 3 MHz over 120 s. Frequency modulation spectroscopy (FMS) at 20 MHz demonstrated a twofold improvement for NO measured with a 5.3 μm QCL despite residual amplitude modulation. Broadband RF current perturbation of a 5.3 μm QCL was shown to broaden the laser linewidth and enhance the sensitivity of off-axis cavity-enhanced absorption spectroscopy (CEAS) tenfold. Optical-feedback CEAS (OF-CEAS), which achieves high intracavity power and elongated periods of resonant cavity excitation, was performed using V-shaped and linear optical cavities. ICL and EC-QCL sources were utilized for the first time for sensitive OF-CEAS detection of VOCs and N2O. OF-CEAS using a V-shaped cavity and 3.2 μm ICL achieved an amin of 2:5x10-8 cm-1 for N2O measurements. While the 5 μm EC-QCL achieved similar single-scan precision, mode-hopping prevented consistent measurements. The novel use of a linear optical cavity for OF-CEAS was demonstrated theoretically and experimentally with a 5.3 μm QCL to achieve excellent sensitivities (4 x 10-9 cm-1 Hz-1/2). The successful demonstration of these techniques paves the way for new QCL and ICL technology to be incorporated in future laser absorption spectrometers for the laboratory, field, and clinic.

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Książki na temat "Mie spectroscopy"

Elhinney, John Mc. Direct quality measurement of flour and discrimination of selected meats by visible, near and mid-infrared spectroscopy. University College Dublin, 1998.

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Wang, Halan Mie. The investigation of higher coordinated Ge species in alkali germanate and alkali germanophosphate glasses using Raman spectroscopy and O K-edge XANES / by Halan Mie Wang. 2007.

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Martin, Francis L., and Hubert M. Pollock. Microspectroscopy as a tool to discriminate nanomolecular cellular alterations in biomedical research. Edited by A. V. Narlikar and Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533053.013.8.

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This article considers the use of microspectroscopy for discriminating nanomolecular cellular alterations in biomedical research. It begins with an overview of some existing mid-infrared microspectroscopy techniques, including FTIR microspectroscopy and Raman microspectroscopy. It then discusses near-field techniques such as scanning near-field optical microscopy, near-field Raman microscopy, and photothermal microspectroscopy (PTMS). It also examines promising alternative sources of IR light, possible advantages of using normal atomic force microscopy probes, experimental procedures for PTMS, and prospects for high spatial resolution in near-field FTIR spectroscopy. Finally, it describes the spectroscopic detection of small particles, along with the use of the analysis paradigm to discriminate nanomolecular cellular alterations in biomedical research.

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He, Guang S. Laser Stimulated Scattering and Multiphoton Excitation. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192895615.001.0001.

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Laser Stimulated Scattering and Multiphoton Excitation is the first book that comprehensively covers the following three major areas: (1) Quantum electrodynamic theory of stimulated scattering and multiphoton excitation processes; (2) Various stimulated scattering effects, including the early discovered stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS), the later investigated stimulated Kerr scattering (SKS), and the recently developed stimulated Rayleigh–Bragg scattering (SRBS) and stimulated Mie scattering (SMS); (3) Multiphoton excitation-based nonlinear optical effects, photoelectric effects, atomic and molecular ionization effects, and molecular dissociation effects. Each chapter covers: (i) the concept and mechanism description, (ii) the necessary theoretical formulation, (iii) the experimental research achievements, and (iv) the scientific/technological applications. Laser Stimulated Scattering and Multiphoton Excitation is useful and suitable for academics, experts, and students working or interested in the areas of nonlinear optics, nonlinear photonics, laser spectroscopy, physical optics, physical chemistry, and optoelectronic engineering.

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Grove, E. L., William K. Baer, and Alfred J. Perkins. Developments in Applied Spectroscopy: Volume 6 Selected papers from the Eighteenth Annual Mid-America Spectroscopy Symposium Held in Chicago, Illinois ... Springer, 2013.

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Grove, E. L. Developments in Applied Spectroscopy: Selected Papers from the Twentieth Annual Mid-America Spectroscopy Symposium, Held in Chicago, Illinois, May 12-15 1969. Springer, 2012.

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Grove, E. L. Developments in Applied Spectroscopy: Selected papers from the Twentieth Annual Mid-America Spectroscopy Symposium, Held in Chicago, Illinois, May 12-15, 1969. Springer, 2012.

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Bohren, Andreas Markus. Optical parametric oscillator pumped mid-infrared laser sources for photoacoustic trace gas spectroscopy. 1997.

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Developments in Applied Spectroscopy : Volume 3: Proceedings of the Fourteenth Annual Mid-America Spectroscopy Symposium Held in Chicago, Illinois, May 20-23, 1963. Springer, 2013.

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Forrette, J. E., and E. Lanterman. Developments in Applied Spectroscopy : Volume 3: Proceedings of the Fourteenth Annual Mid-America Spectroscopy Symposium Held in Chicago, Illinois, May 20-23 1963. Springer, 2013.

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Części książek na temat "Mie spectroscopy"

Kreibig, U., M. Gartz, A. Hilger, and H. Hövel. "Mie-Plasmon Spectroscopy: A Tool of Surface Science." In Fine Particles Science and Technology. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0259-6_35.

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Fung, K. H., and I. N. Tang. "Study of Condensational Growth of Water Droplets by Optical Mie Scattering Spectroscopy." In Optical Particle Sizing. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-1983-3_43.

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Mik, Egbert G., and Can Ince. "Optical Spectroscopy in Mice." In Basic Science for the Cardiologist. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4615-0483-2_6.

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Jia, Wenyang, and Anastasios Koidis. "Mid-Infrared Spectroscopy (MIR)." In Non-invasive and Non-destructive Methods for Food Integrity. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-76465-3_4.

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Rodriguez-Saona, Luis, Siyu Yao, and Shreya Madhav Nuguri. "Mid-Infrared Spectroscopy Analysis." In Food Science Text Series. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-44970-3_12.

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Reich, Gabriele. "Mid and Near Infrared Spectroscopy." In Advances in Delivery Science and Technology. Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-4029-5_3.

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Hopkins, Jeffrey L. "ALPY 600 Mid-Resolution Spectroscopy." In The Patrick Moore Practical Astronomy Series. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01442-5_5.

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Bale, Gemma, Ajay Rajaram, Matthew Kewin, et al. "Multimodal Measurements of Brain Tissue Metabolism and Perfusion in a Neonatal Model of Hypoxic-Ischaemic Injury." In Advances in Experimental Medicine and Biology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-48238-1_32.

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AbstractThis is the first multimodal study of cerebral tissue metabolism and perfusion post-hypoxic-ischaemic (HI) brain injury using broadband near-infrared spectroscopy (bNIRS), diffuse correlation spectroscopy (DCS), positron emission tomography (PET) and magnetic resonance spectroscopy (MRS). In seven piglet preclinical models of neonatal HI, we measured cerebral tissue saturation (StO2), cerebral blood flow (CBF), cerebral oxygen metabolism (CMRO2), changes in the mitochondrial oxidation state of cytochrome c oxidase (oxCCO), cerebral glucose metabolism (CMRglc) and tissue biochemistry (Lac+Thr/tNAA). At baseline, the parameters measured in the piglets that experience HI (not controls) were 64 ± 6% StO2, 35 ± 11 ml/100 g/min CBF and 2.0 ± 0.4 μmol/100 g/min CMRO2. After HI, the parameters measured were 68 ± 6% StO2, 35 ± 6 ml/100 g/min CBF, 1.3 ± 0.1 μmol/100 g/min CMRO2, 0.4 ± 0.2 Lac+Thr/tNAA and 9.5 ± 2.0 CMRglc. This study demonstrates the capacity of a multimodal set-up to interrogate the pathophysiology of HIE using a combination of optical methods, MRS, and PET.

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Bakker, H. J. "Femtosecond Mid-Infrared Spectroscopy of Water." In Ultrafast Hydrogen Bonding Dynamics and Proton Transfer Prosesses in the Condensed Phase. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-0059-7_3.

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Tyulnev, Igor, Julita Poborska, Álvaro Jiménez-Galán, et al. "Polarization-Shaped Strong Field Control Over Valley Polarization with Mid-IR Light." In Springer Proceedings in Physics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-47938-0_19.

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AbstractWe induce valley-control in MoS2 with a polarization-shaped mid-infrared light field. The trefoil-shaped pump field is characterized by high harmonic spectroscopy and valley polarization is read our by a probe field via second harmonic generation.

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Streszczenia konferencji na temat "Mie spectroscopy"

Konnov, Dmitrii, Andrey Muraviev, Sergey Vasilyev, and Konstantin L. Vodopyanov. "Dual-Comb Spectroscopy with 200,000 Resolved Comb Teeth Across Mid-IR to THz at Video (69 Hz) Rate." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf2f.5.

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Using electro-optically sampled dual-comb spectroscopy we performed high-resolution spectroscopic measurements across an unprecedented 1.5–45 THz (6.6–200µm) spectral range with simultaneous acquisition of octave-wide spectra (200,000 comb lines) at 69-Hz rate.

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Mitsumoto, Ryo, Naoya Kuse, Yoshiaki Nakajima, Takeshi Yasui, Kaoru Minoshima, and Kazumichi Yoshii. "Er:fiber Comb System Optimized for mW-class Mid-infrared Light Generation Using a Waveguide-type Periodically Poled Lithium Niobate Crystal." In JSAP-Optica Joint Symposia. Optica Publishing Group, 2024. https://doi.org/10.1364/jsapo.2024.17p_a31_8.

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The mid-infrared (MIR) region is rich in molecular absorption lines that can be used to identify trace gases and other substances. The 3-5 μm wavelength region, which is called the first MIR atmospheric window, is of particular interest because it contains the fingerprints of many hydrocarbons, nitrogen oxides, and greenhouse gases. In the near-infrared region, new spectroscopic techniques using optical frequency combs have been actively studied, and particularly, dual-comb spectroscopy using two optical combs is attracting attention as a broadband, high-precision, and high-speed Fourier spectroscopy method. Against this background, dual-comb spectrometers in the 3-5 μm range are expected to be a new real-time and open-pass measurement method for environmental measurements and breath analysis.

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Herr, Tobias. "Broadband and Metrology-Grade Frequency Combs From Integrated Photonic Chips." In Applied Industrial Spectroscopy. Optica Publishing Group, 2024. https://doi.org/10.1364/ais.2024.atu3a.1.

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We report on our recent progress on chip-scale frequency combs and photonic chip-based generation of broadband spectra for optical sensing and spectroscopy from ultra-violet to mid-infrared wavelengths. Full-text article not available; see video presentation

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Bozoki, Zoltan. "Quantitative Photoacoustic Spectroscopy of Gases and Aerosols." In Applied Industrial Spectroscopy. Optica Publishing Group, 2024. https://doi.org/10.1364/ais.2024.aw1a.1.

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IExamples of successful implementation of the photoacoustic gas concentration measurement method in various applications including oil and natural gas industry, soil science, airborne and exhaust measurements, etc. are given. Furthermore, the unique application possibilities opened up by the use of the combination of an external cavity mid-infrared interband cascade laser combined with a dual cell photoacoustic system are discussed. Full-text article not available; see video presentation

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Ostermeyer, M. R., D. V. Stephens, L. Wang, and S. L. Jacques. "Nearfield polarization effects on light propagation in random media." In Biomedical Optical Spectroscopy and Diagnostics. Optica Publishing Group, 2006. http://dx.doi.org/10.1364/bosd.1996.sp2.

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Video measurements of the polarized component of back scattered light show a characteristic pattern around an incident linearly polarized laser beam. This pattern can be attributed to early photons which probe only a thin superficial layer of the medium. Mie theory is used to explain the angular polarization pattern. Measurements at two wavelengths on phantoms with different particle sizes and on human skin are reported.

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Melik-Gaykazyan, Elizaveta, Kirill Koshelev, Jae-Hyuck Choi, et al. "Structured Light for Second-Harmonic Spectroscopy in Mie-Resonant AlGaAs Nanoparticles." In CLEO: QELS_Fundamental Science. OSA, 2019. http://dx.doi.org/10.1364/cleo_qels.2019.fm2c.4.

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Boyer, James, Judith R. Mourant, and Irving J. Bigio. "Theoretical and Experimental Investigations of Elastic Scattering Spectroscopy as a Potential Diagnostic for Tissue Pathologies." In Advances in Optical Imaging and Photon Migration. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/aoipm.1994.opttm.265.

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The spectral distribution of the diffuse reflectance of five sizes of polystyrene microspheres has been measured with an elastic scatter spectrometer designed for optical biopsy of living tissue. The microsphere sizes are representative of the suspected scattering centers in living tissue. The experiment data are discussed and interpreted in the framework of Mie scattering theory and Monte-Carlo transport analysis. Present results support the assertion that Mie theory is necessary to describe the spectral features of elastic scatter spectroscopy in tissue.

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Wu, Tao T., Min Xu, and Jianan Y. Qu. "Light scattering spectroscopy of cells: a study based on Mie and fractal models." In Biomedical Optics (BiOS) 2007, edited by Adam Wax and Vadim Backman. SPIE, 2007. http://dx.doi.org/10.1117/12.697141.

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Nasir, Abdul, nilesh Vasa, and Satyanarayanan S. "Steam Dryness Fraction Measurement Using Mie Scattering and Super Luminescent Diode Based Absorption Spectroscopy." In International Conference on Fibre Optics and Photonics. OSA, 2016. http://dx.doi.org/10.1364/photonics.2016.tu4a.3.

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Lukasievicz, Gustavo V. B., Elizandra Sehn, Alicja Dabrowska, Leopold Lindenbauer, and Bernhard Lendl. "Mid-infrared Photothermal Lens Spectroscopy of Liquids Using an External Cavity Quantum Cascade Laser." In Mid-Infrared Coherent Sources. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/mics.2024.mth3c.5.

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The photothermal lens spectroscopy using a quantum cascade laser was applied to analyze liquid samples. The results show the great potential of this technique for the mid-IR spectroscopic analysis of different liquids and mixtures.

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Raporty organizacyjne na temat "Mie spectroscopy"

Donini, J. C., and K. H. Michaelian. Near, mid, and farinfrared protoacoustic spectroscopy. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/304864.

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Upadhyaya, Shrini K., Abraham Shaviv, Abraham Katzir, Itzhak Shmulevich, and David S. Slaughter. Development of A Real-Time, In-Situ Nitrate Sensor. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7586537.bard.

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Although nitrate fertilizers are critical for enhancing crop production, excess application of nitrate fertilizer can result in ground water contamination leading to the so called "nitrate problem". Health and environmental problems related to this "nitrate problem" have led to serious concerns in many parts of the world including the United States and Israel. These concerns have resulted in legislation limiting the amount of nitrate N in drinking water to 10mg/g. Development of a fast, reliable, nitrate sensor for in-situ application can be extremely useful in dynamic monitoring of environmentally sensitive locations and applying site-specific amounts of nitrate fertilizer in a precision farming system. The long range objective of this study is to develop a fast, reliable, real-time nitrate sensor. The specific objective of this one year feasibility study was to explore the possible use of nitrate sensor based on mid-IR spectroscopy developed at UCD along with the silver halide fiber ATR (i.e. attenuated total internal reflection) sensor developed at TAU to detect nitrate content in solution and soil paste in the presence of interfering compounds. Experiments conducted at Technion and UCD clearly demonstrate the feasibility of detecting nitrate content in solutions as well as soil pastes using mid-IR spectroscopy and an ATR technique. When interfering compounds such as carbonates, bicarbonates, organic matter etc. are present special data analysis technique such as singular value decomposition (SYD) or cross correlation was necessary to detect nitrate concentrations successfully. Experiments conducted in Israel show that silver halide ATR fiber based FEWS, particularly flat FEWS, resulted in low standard error and high coefficient of determination (i.e. R² values) indicating the potential of the flat Fiberoptic Evanescent Wave Spectroscopy (FEWS) for direct determinations of nitrate. Moreover, they found that it was possible to detect nitrate and other anion concentrations using anion exchange membranes and M1R spectroscopy. The combination of the ion-exchange membranes with fiberoptices offers one more option to direct determination of nitrate in environmental systems.

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Park, Wounjhang, Wei Zhang, Juliet Gopinath, Jennifer Cha, and Prashant Nagpal. Nanoscale Optical Imaging and Spectroscopy from Visible to Mid-Infrared. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ad1008610.

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G.L. Powell and J.E. Parks II. Feedstock and Web Analysis Using Mid-Infrared Diffuse Reflectance Spectroscopy and Imaging Spectroradiometry. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/1779.

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Bartlett, Joshua, and Alonso Castro. FY25 Mid-Year Report FABIA In-Field Laser Absorption Spectroscopy for UF6 Enrichment. Office of Scientific and Technical Information (OSTI), 2025. https://doi.org/10.2172/2558021.

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Peden, Charles HF, Ting He, M. Pilling, Carol J. Hirschmugl, and P. Gardner. Mid- and Far-Infrared Reflection/Absorption Spectroscopy (IRAS) Studies of NO on Rh Single Crystal Surfaces. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/965721.

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Bonfil, David J., Daniel S. Long, and Yafit Cohen. Remote Sensing of Crop Physiological Parameters for Improved Nitrogen Management in Semi-Arid Wheat Production Systems. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7696531.bard.

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To reduce financial risk and N losses to the environment, fertilization methods are needed that improve NUE and increase the quality of wheat. In the literature, ample attention is given to grid-based and zone-based soil testing to determine the soil N available early in the growing season. Plus, information is available on in-season N topdressing applications as a means of improving GPC. However, the vast majority of research has focused on wheat that is grown under N limiting conditions in sub-humid regions and irrigated fields. Less attention has been given to wheat in dryland that is water limited. The objectives of this study were to: (1) determine accuracy in determining GPC of HRSW in Israel and SWWW in Oregon using on-combine optical sensors under field conditions; (2) develop a quantitative relationship between image spectral reflectance and effective crop physiological parameters; (3) develop an operational precision N management procedure that combines variable-rate N recommendations at planting as derived from maps of grain yield, GPC, and test weight; and at mid-season as derived from quantitative relationships, remote sensing, and the DSS; and (4) address the economic and technology-transfer aspects of producers’ needs. Results from the research suggest that optical sensing and the DSS can be used for estimating the N status of dryland wheat and deciding whether additional N is needed to improve GPC. Significant findings include: 1. In-line NIR reflectance spectroscopy can be used to rapidly and accurately (SEP <5.0 mg g⁻¹) measure GPC of a grain stream conveyed by an auger. 2. On-combine NIR spectroscopy can be used to accurately estimate (R² < 0.88) grain test weight across fields. 3. Precision N management based on N removal increases GPC, grain yield, and profitability in rainfed wheat. 4. Hyperspectral SI and partial least squares (PLS) models have excellent potential for estimation of biomass, and water and N contents of wheat. 5. A novel heading index can be used to monitor spike emergence of wheat with classification accuracy between 53 and 83%. 6. Index MCARI/MTVI2 promises to improve remote sensing of wheat N status where water- not soil N fertility, is the main driver of plant growth. Important features include: (a) computable from commercial aerospace imagery that include the red edge waveband, (b) sensitive to Chl and resistant to variation in crop biomass, and (c) accommodates variation in soil reflectance. Findings #1 and #2 above enable growers to further implement an efficient, low cost PNM approach using commercially available on-combine optical sensors. Finding #3 suggests that profit opportunities may exist from PNM based on information from on-combine sensing and aerospace remote sensing. Finding #4, with its emphasis on data retrieval and accuracy, enhances the potential usefulness of a DSS as a tool for field crop management. Finding #5 enables land managers to use a DSS to ascertain at mid-season whether a wheat crop should be harvested for grain or forage. Finding #6a expands potential commercial opportunities of MS imagery and thus has special importance to a majority of aerospace imaging firms specializing in the acquisition and utilization of these data. Finding #6b on index MCARI/MVTI2 has great potential to expand use of ground-based sensing and in-season N management to millions of hectares of land in semiarid environments where water- not N, is the main determinant of grain yield. Finding #6c demonstrates that MCARI/MTVI2 may alleviate the requirement of multiple N-rich reference strips to account for soil differences within farm fields. This simplicity will be less demanding of grower resources, promising substantially greater acceptance of sensing technologies for in-season N management.

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Une introduction à l'analyse des sols par spectroscopie dans le visible et le proche infrarouge (vis-NIR) ainsi que dans le moyen infrarouge (MIR). FAO, 2024. http://dx.doi.org/10.4060/cb9005fr.

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