Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"supercontinuum generation"”.
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Harmonic and Supercontinuum Generation in Zinc-Blende Materials
… suitable for extremely broadband harmonic and supercontinuum generation. This dissertation reports on the development of numerical methods for simulating light-matter interactions in polycrystalline zinc-selenide and zinc-sulfide. It is the first, to the best of our knowledge, quantitative and …
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Design and optimization of chalcogenide waveguides for supercontinuum generation
… research work presents numerical simulations of supercontinuum (SC) generation in optical waveguides based on Ge11.5As24Se64.5 chalcogenide (ChG) material. Rigorous numerical simulations were performed using finite-element and split-step Fourier methods in order to optimize the waveguides for …
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Numerical and Analytical Studies of Electromagnetic Waves: Hermite Methods, Supercontinuum Generation, and Multiple Poles in the SEM
… from a lossless sphere, and analysis of supercontinuum generation. Hermite methods are a new class of arbitrary order algorithms to solve partial differential equations (PDE). In the first chapter, we discuss the fundamentals of Hermite methods in great detail. Hermite interpolation is …
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Lūžio rodiklio modifikavimas stikluose ir kristaluose veikiant ultratrumpaisiais lazerio impulsais /
… in fused silica such as filament formation and supercontinuum generation is experimentally investigated.
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Optical Propagation of Self-sustaining Wavefronts and Nonlinear Dynamics in Parabolic Multimode Fibers
… will then conclude by delving into the topic of supercontinuum generation in parabolic multimode fibers which, in the upcoming years, has great potential of becoming important in optics.
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Advances in Optical Coherence Tomography and Microscopy for endoscopic applications and functional neuroimaging
… resolution OCT are demonstrated based on supercontinuum generation in highly nonlinear optical fibers. Second, an extension of OCT called optical coherence microscopy (OCM) is developed for in vivo cellular imaging. High speed OCM system designs are demonstrated and characterization of OCM …
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Self-referenced 1.5 [mu]m fiber frequency combs at GHz repetition rates
… which include optical arbitrary waveform generation (OAWG), high-speed photonic analog-to-digital conversion (EPIC), space exploration (Astro- Comb) as well as precision spectroscopy and optical clocks. Fiber-based frequency combs have increasingly become attractive alternatives to …
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Development and applications of dispersion controlled high nonlinearity microstructured fibres
… future work.<br/><br/>A systematic study of the Supercontinuum Generation phenomenon is presented in this thesis. By using fibres with different dispersion profiles, pumping at 1.06 μm, the nonlinear effects such as Self-Phase-Modulation, Four-Wave-Mixing and Self-Soliton-Frequency-Shift, which …
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Polarization characterization of nonlinear laser propagation
… dependent applications such as THz emission and supercontinuum generation.
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New optical fibre based technologies and their application in highly nonlinear systems
… demonstrate multi-channel wavelength conversion, generation of high repetition rate pulses and all-optical demultiplexing. The experiments presented in this thesis clearly reveal the potential of small-core soft-glass fibres for nonlinear applications.<br/><br/>The use of soft glass …
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Investigation of nonlinear processes and device designs applicable to the creation of a compact, broadly tunable laser based on a tantalum pentoxide planar lightwave circuit platform
… sub-components include efficient: supercontinuum generation, harmonic generation, and parametric wavelength conversion devices, all of which should ideally be powered by a compact, low cost, solid state pump source. To complicate matters further, requirements for parametric …
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Nonlinear optical emission and near-field enhancement effects in arrays of gold bowtie nano-antennas
… to investigate the dependence of second-harmonic generation and two-photon photoluminescence emission intensities with respect to the array periodicity and the incident polarization. A detrimental side-effect of the efficient radiative coupling to the incident light and high near-field intensities …