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 9 of 9 for “"micro-cavities"”.
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Tunable micro-cavities in photonic band-gap yarns and optical fibers
… otherwise periodic structures act as optical micro-cavities that enable precise design of the fibers' spectral response. Fabrication of these composite fibers by thermal drawing of a macroscopic preform in the viscous state requires solving material selection challenges in order to identify …
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Density Functional Study of Hydrogen in Amorphous Silicon
… potential. For isolated Si-H bonds (i.e. in micro-cavities without any bond reconstruction) the energetics are not consistent with observations. However, if the remaining Si reconstructs with a nearby silicon creating a 5-fold coordinated defect then the energetics are in agreement with …
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All-optical processing for terabit/s wavelength division multiplexed systems using two-photon absorption in a semiconductor micro-cavity
… Two-photon absorption within a resonant microcavity is an ideal candidate for high-speed transmission line performance monitoring, and can be easily integrated with a dispersion compensation module. The major advantage of using a microcavity structure is that the signal is only enhanced …
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Subcooled flow boiling heat transfer and critical heat flux in water-based nanofluids at low pressure
… particles during nanofluids boiling. A confocal-microscopy-based examination of the test section revealed nanoparticles deposition not only changes the number of micro-cavities on the surface, but also the surface wettability. A simple model was used to estimate the ensuing nucleation site …
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One-dimensional photonic crystal / photonic wire cavities based on silicon-on-insulator (SOI)
… PhC structures embedded in PhW waveguide micro-cavities could become essential components for wavelength selective devices, especially for possible application in WDM systems. The high quality factor, Q, and confinement of light in a small volume, V, are important for optical signal …
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Characterization of wave transport in non-conservative media with random and correlated disorder
… two-dimensional aperiodic Thue-Morse pattern of micro-cavities onto a square lattice is demonstrated, making it amenable to the tight-binding description"--Abstract, page iv.</p>
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An experimental study of the flow boiling of refrigerant-based nanofluids
… mechanism of nanoparticles filling up the micro-cavities on test surface is also responsible for decreased heat transfer and is a strong function of particle number density.
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Novel nanolasers, nano-LEDs, and modal cutoff confinement light emitters
… metal-cavity quantum-dot surface-emitting micro-lasers. Different sizes of metal-DBR cavities are fabricated with cavity volume reduction both in the lateral and vertical dimensions following our theoretical design rules to optimize the performance. One of the smallest electrical injection …
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Dielectric micro-cavity surface-emitting lasers
… and experimental studies on such dielectric micro-cavity surface-emitting lasers are presented. In addition, issues related to cavity size reduction are also investigated. A theoretical model, including the electronic band structure of the active material and the optical properties of the …