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 6 of 6 for “"modal volume"”.
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Low Modal Volume Single Crystal Sapphire Optical Fiber
… and predicting the optical behavior of low modal volume sapphire optical fibers are also presented. These models are built upon standard weakly-guiding optical fiber theory, which is found to be accurate once experimentally-determined properties of the SCSF are substituted for theoretical …
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A few-cycle Cr⁴⁺:YAG laser and optical studies of photonic crystals
… as high as 360 were observed for cavities with a modal volume of only 2([lambda]/2n)3. Photonic crystals were used to enhance the total emission of a light emitting diode at 980 nm by 8-fold. At particular wavelengths, collected photoluminescence enhancements larger than 100 were observed.
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Micro- and nano-cavity lasers for sensing applications
… because of their compactness and ultra-small modal volume. Different aspects and properties of photonic crystal membrane lasers are discussed. The thermal characteristics of a photonic crystal laser are studied using a finite element method. Two new types of photonic crystal membrane cavity …
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Novel photonic phenomena in nanostructured material systems with applications and mid-range efficient insensitive wireless energy-transfer
… modes of the substrate, for resonant small-modal-volume cavities with patterned substrates, and the broadband mode-matching across the coupling interface, for large-bandwidth butt-coupled devices. Moreover, a hybrid plasmonic-dielectric material platform is introduced, able to localize light …
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Optical Fiber Microstructures for Self-Contained Whispering Gallery Mode Excitation
… for their high quality (Q) factor and small modal volume, spheres owe credit of these attractive features to their support of whispering gallery mode (WGM) resonances. The sensitivity of a resonance's frequency and Q to strain, temperature, and other parameters of the surrounding medium can …
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Theoretical investigation of metal-cavity nanolasers and nanoLEDs and comparison with experiments
… In the presence of metal, the optical mode volume of either a dielectric mode or a plasmonic mode can be suppressed to be smaller than its counterpart in conventional dielectric cavities. Furthermore, the mode volume of the plasmonic mode can be smaller than the diffraction limit, which is …