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 8 of 8 for “"Optical wave guides"”.
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An investigation of phase-mask diffraction patterns and fibre Bragg gratings with scanning near-field optical microscopy
… been utilized for assessing the properties of optical wave-guides at an increasing rate. Here, a Scanning Near-field Optical Microscope (SNOM) has been designed and constructed in order to expand this work into an analysis of the optical and structural properties of fibre Bragg gratings, which …
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Compactons in strongly nonlinear lattices
In the present work, we study wave phenomena in strongly nonlinear lattices. Such lattices are characterized by the absence of classical linear waves. We demonstrate that compactons – strongly localized solitary waves with tails decaying faster than exponential – exist and that they play a major …
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Electro-optic polymer-based monolithic waveguide devices with multi-functions of amplification switching and modulation
… small velocity mismatch for traveling wave devices, and flexible monolithic integrated capability on any interested substrates. Based on waveguides fabricated with EO polymers, our research objectives were (1) to design and fabricate amplifiers, switches, and modulators and (2) to …
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Thin film integrated optical waveguides for biosensing using local evanescent field detection
A waveguide is a high refractive index material that is surrounded by lower refractive index cladding. This waveguide structure can be used to carry light confined to the high refractive index core. Surrounding the core of the waveguide is a decaying evanescent light field that extends into the …
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Precision Tuning of Silicon Nanophotonic Devices through Post-Fabrication Processes
… processes. These devices include numerous optical resonator designs as well as slow-light waveguides. Optical resonators are used to confine photons both spatially and temporally. In recent years, there has been much research, both theoretical and experimental, into improving the design of …