Relevant bibliographies by topics / Nonlinear light generation / Dissertations / Theses
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Dissertations / Theses on the topic 'Nonlinear light generation'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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1

Butler, Sween J. "Nonlinear Light Generation from Optical Cavities and Antennae." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984232/.

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Semiconductor based micro- and nano-structures grown in a systematic and controlled way using selective area growth are emerging as a promising route toward devices for integrated optical circuitry in optoelectronics and photonics field. This dissertation focuses on the experimental investigation of the nonlinear optical effects in selectively grown gallium nitride micro-pyramids that act as optical cavities, zinc oxide submicron rods and indium gallium nitride multiple quantum well core shell submicron tubes on the apex of GaN micro pyramids that act as optical antennae. Localized spatial exc
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2

Yao, Can. "Light generation and manipulation from nonlinear randomly distributed domains in SBN." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/277468.

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Disordered media with refractive index variations can be found in the atmosphere, the ocean, and in many materials or biological tissues. Several technologies that make use of such random media, as image formation, satellite communication, astronomy or microscopy, must deal with an unavoidable light scattering or diffusion. This is why for many years light propagation through random media has been a subject of intensive study. Interesting phenomena such as speckle, coherent backscattering or random lasing have been discovered and studied. More recently, researchers are beginning to investigate
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3

Khademian, Ali. "Highly Efficient Single Frequency Blue Laser Generation by Second Harmonic Generation of Infrared Lasers Using Quasi Phase Matching in Periodically Poled Ferroelectric Crystals." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc799538/.

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Performance and reliability of solid state laser diodes in the IR region exceeds those in the visible and UV part of the light spectrum. Single frequency visible and UV laser diodes with higher than 500 mW power are not available commercially. However we successfully stabilized a multi-longitudinal mode IR laser to 860 mW single frequency. This means high efficiency harmonic generation using this laser can produce visible and UV laser light not available otherwise. In this study we examined three major leading nonlinear crystals: PPMgO:SLN, PPKTP and PPMgO:SLT to generate blue light by se
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4

Gili, Valerio flavio. "All-dielectric nonlinear nanophotonics." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCD012/document.

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La méta-optique non linéaire tout diélectrique suscite un vif intérêt, grâce à la faisabilité de nanostructures à contraste élevé et indice de réfraction disponible avec la lithographie à semi-conducteurs. Alors que des effets nonlinéaires au troisième ordre ont été rapportés dans les nanoantennes silicium sur isolant, la plate-forme AlGaAs-sur-isolant a récemment permis la démonstration de la génération de la seconde harmonique, dû à la noncentrosymétrie de ce matériel. Cette thèse illustre notre activité récente sur les nanoantennes non linéaires AlGaAs-sur-AlOx, où AlOx est obtenu par attaq
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5

Smith, Roger. "The Double-Heralded Generation and Frequency Translation of Two-Photon States of Light in Optical Fibers." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20696.

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The creation of optical states of light that are quantum mechanical in nature in optical fibers is discussed and demonstrated experimentally. Specifically, two- photon states created by spontaneous four-wave-mixing in commercially available single-mode, birefringent fibers are studied. When creating photon states of light, it is important to verify the created states are of the proper photon number distribution and free of noise. We detail a method for combining thresholding, non-number resolving detectors to characterize the photon number distribution created via SFWM and a procedure to quant
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6

Baselt, Tobias, Christopher Taudt, Bryan Nelsen, Andrés Fabián Lasagni, and Peter Hartmann. "Experimental study of supercontinuum generation in an amplifier based on an Yb3+ doped nonlinear photonic crystal fiber." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35094.

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The use of supercontinuum light sources in different optical measurement methods, like microscopy or optical coherence tomography, has increased significantly compared to classical wideband light sources. The development of various optical measurement techniques benefits from the high brightness and bandwidth, as well as the spatial coherence of these sources. For some applications, only a portion of the broad spectral range can be used. Therefore, an increase of the spectral power density in limited spectral regions would provide a clear advantage over spectral filtering. This study describes
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7

Ermolov, Alexey [Verfasser], and Philip [Gutachter] Russell. "Ultrashort UV pulses via nonlinear light matter interaction in gas-filled hollow-core fibres: generation and characterization / Alexey Ermolov ; Gutachter: Philip Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/113336246X/34.

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8

Singh, Anu. "Nonlinear optical properties of nanostructures, photochromic and lanthanide complexes in solution." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2012. http://tel.archives-ouvertes.fr/tel-00826653.

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Nonlinear optics is well known to be a highly powerful tool to investigate the properties of the materials. In this thesis we used two important nonlinear optical techniques known as Electric Field Induced Second Harmonic Generation (EFISH) and Harmonic Light Scattering (HLS) to study the first hyperpolarizability of various molecular objects. Firstly, we evidenced the pi donor conjugation in cyclometallated Ir complexes. We have also explored the series of trinuclear organometallic triaryl-1, 3, 5-triazinane-2, 4, 6-triones functionalized by d6-transition metal acetylides complexes at their p
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9

Seefeldt, Michael. "Pikosekunden-Weißlichterzeugung in mikrostrukturierten Fasern unter Ausnutzung nichtlinear-optischer Effekte." Phd thesis, Potsdam Universitätsverlag Potsdam, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?id=3095901&prov=M&dokv̲ar=1&doke̲xt=htm.

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10

Kim, Kwang-Hyon [Verfasser], Thomas [Akademischer Betreuer] Elsässer, Alejandro [Akademischer Betreuer] Saenz, and Claus [Akademischer Betreuer] Ropers. "Ultrafast nonlinear optical processes in metal-dielectric nanocomposites and nanostructures : passive mode-locking, slow light, high harmonic generation / Kwang-Hyon Kim. Gutachter: Thomas Elsässer ; Alejandro Saenz ; Claus Ropers." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2012. http://d-nb.info/1021720437/34.

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11

Chaitanya, Kumar Suddapalli. "High-power, fiber-laser-pumped optical parametric oscillators from the visible to mid-infrared." Doctoral thesis, Universitat Politècnica de Catalunya, 2012. http://hdl.handle.net/10803/83528.

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High-power, continuous-wave (cw), mid-infrared (mid-IR) laser sources are of interest for variety of applications such as trace gas detection and remote sensing, which require broad spectral coverage to address the most prominent absorption features of a wide range of molecular species particularly in the mid-IR fingerprint region. On the other hand, surgical applications require high energy sources with unique pulse structure at specific wavelength in the mid-IR ranging from 6-6.5 m. Optical parametric oscillators (OPOs) offer potential sources for all the above applications. The outp
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12

Rudhall, Andrew Peter. "Ultrashort laser pulse shaping for novel light fields and experimental biophysics." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3682.

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Broadband spectral content is required to support ultrashort pulses. However this broadband content is subject to dispersion and hence the pulse duration of corresponding ultrashort pulses may be stretched accordingly. I used a commercially-available adaptive ultrashort pulse shaper featuring multiphoton intrapulse interference phase scan technology to characterise and compensate for the dispersion of the optical system in situ and conducted experimental and theoretical studies in various inter-linked topics relating to the light-matter interaction. Firstly, I examined the role of broadband ul
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13

Mendonça, Marcela de Freitas. "Projeto e construção de um amplificador paramétrico óptico operando no infravermelho médio." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-14062010-162036/.

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Um Amplificador Paramétrico Óptico (optical parametric amplifier - OPA) é uma fonte de luz coerente, de alta qualidade e sintonizável, baseada em processos ópticos não-lineares de segunda ordem. Alguns modelos possuem largura de banda estreita e um amplo intervalo de sintonia, podendo alcançar regiões que vão desde o ultravioleta até o infravermelho médio. A nossa motivação para construir este amplificador paramétrico óptico é sua utilização em experimentos de espectroscopia vibracional de superfícies através do processo óptico não-linear de segunda ordem, geração de soma de frequências (sum-f
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14

Wang, Luyu. "Plasmon-Ehanced Spectral Changes in Surface Sum-Frequency Generation with Polychromatic Light." 2013. http://hdl.handle.net/10222/36308.

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In this thesis, the spectral behavior of the fundamental and sum-frequency waves, generated from the surface of a thin metal film in the Kretschmann configuration, is theoretically studied with coherent ultrashort pulses. As a first exploration of considering spectral response in nonlinear plasmonics, it is shown that the spectra of reflected sum-frequency waves exhibit pronounced shifts for the incident fundamental waves close to the plasmon coupling angle, whereas meanwhile those of reflected fundamental waves display energy holes. We also demonstrate that the scale of discovered plasmon-enh
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15

Wang, Luyu. "Plasmon-Enhanced Spectral Changes in Surface Sum-Frequency Generation with Polychromatic Light." 2013. http://hdl.handle.net/10222/36310.

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In this thesis, the spectral behavior of the fundamental and sum-frequency waves, generated from the surface of a thin metal film in the Kretschmann configuration, is theoretically studied with coherent ultrashort pulses. As a first exploration of considering spectral response in nonlinear plasmonics, it is shown that the spectra of reflected sum-frequency waves exhibit pronounced shifts for the incident fundamental waves close to the plasmon coupling angle, whereas meanwhile those of reflected fundamental waves display energy holes. We also demonstrate that the scale of discovered plasmon-enh
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16

Sivis, Murat. "Extreme-ultraviolet light generation in plasmonic nanostructures." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E08-0.

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17

Srinivasan, Prashant. "INVESTIGATION OF QUANTUM FLUCTUATIONS IN A NONLINEAR INTERFEROMETER WITH HARMONIC GENERATION AND COHERENT INTERACTION OF LIGHT AND CS ATOMS." 2013. http://hdl.handle.net/1805/3465.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>In the first part of this thesis, we investigate the propagation of quantum fluctuations in a nonlinear interferometer comprising under conditions of harmonic generation by computer simulations. This investigation assumes idealized conditions such as lossless and uniform nonlinear media, an ideal cavity and ideal photodetectors. After linearizing wave equations for harmonic generation with a coherent state input, we obtain equations for one dimensional spatial propagation of the mean field and quantum fluctuations for initial c
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18

(8713962), James Ulcickas. "LIGHT AND CHEMISTRY AT THE INTERFACE OF THEORY AND EXPERIMENT." Thesis, 2020.

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Optics are a powerful probe of chemical structure that can often be linked to theoretical predictions, providing robustness as a measurement tool. Not only do optical interactions like second harmonic generation (SHG), single and two-photon excited fluorescence (TPEF), and infrared absorption provide chemical specificity at the molecular and macromolecular scale, but the ability to image enables mapping heterogeneous behavior across complex systems such as biological tissue. This thesis will discuss nonlinear and linear optics, leveraging theoretical predictions to provide frameworks for inter
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19

Filippov, Oleg. "Vectorial beam coupling in fast photorefractive crystals with AC-enhanced response." Doctoral thesis, 2004. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2004092812.

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We develop a theory of vectorial wave coupling in cubic photorefractive crystals placed in an alternating ac-field to enhance the nonlinear response. First we analytically and numerically investigate the dependences of the first Fourier harmonics of the space-charge field, induced in an AC-biased sillenite crystal by a light-interference pattern, on the light contrast m. The data obtained was used to extend the vectorial beam-coupling theory on the whole contrast region. In particular, we proved in the general case that despite of essential differences between thediffusion and AC nonlocal resp
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