22,494 research outputs found
wfschneidergroup/mehta-M-O-boundary: SI
No full text<p>SI files for "Adsorption Energy Correlations at the Metal Support Boundary"</p>
Letter from K. M. Mehta to John Sloan, June 5, 1951
No full text1 leaf (single sided)Letter from K. M. Mehta to John Sloan, June 5, 195
Letter from K. M. Mehta to John Sloan, June 5, 1951
No full text1 leaf (single sided)Letter from K. M. Mehta to John Sloan, June 5, 195
TIEGCM-ROM
No full textDeposited here are the readme and archived folder containing a formatted data Matlab file and an accompanying Matlab script.The '.mat' contains the variables to compute the full and reduced rank dynamic and input matrices for a reduced order representation of the Thermosphere-Ionosphere-Electrodynamics Global Circulation Model (TIEGCM). The description of the model is provided in 'A quasi-physical dynamic reduced order model for thermospheric mass density via Hermitian Space Dynamic Mode Decomposition' in Space Weather (currently under review).DOD: Air Force Office of Scientific ResearchMehta, Piyush M. (2018). TIEGCM-ROM. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/D6GM4G
C. C. Mehta
No full textOn the life and works of Chandravadan Chimanlal Mehta, b. 1901, Gujarati author
An Integro-predictive Power Control Scheme for a non-Geostationary Mobile Satellite System
No full textwfschneidergroup/SI-mehta-beyond-eq: Version 1
No full textSupplementary Dataset: Plasma-Catalytic Ammonia Synthesis Yields Beyond the Equilibrium Limi
Nonlinear properties of silicon core optical fibres
No full textSilica optical fibres are renowned for the framework they have set in modern communications systems, sensors, and biotechnology. One particular trend in current research aims to investigate materials with enhanced optical functionality, high optical efficiency, robustness, and a small device footprint. Amongst the many material choices, semiconductors are emerging as a promising route. In this work, optical fibres and semiconductors are elegantly unified to create a hybrid structure with the potential of seamless integration into current fibre infrastructures. Silica capillaries form the fibre templates in which amorphous semiconductor materials such as silicon and/or germanium are impregnated. This thesis will present the first comprehensive description of the fabrication, characterisation, and the implementation of silicon optical fibres for all-optical signal processing. The fibres are fabricated via a novel high pressure chemical deposition procedure. Each fibre is analysed to determine the exact material composition, uniformity, and more importantly the optical quality. Linear and nonlinear optical characterisations are performed experimentally and supported by intensive numerical studies to validate the results.The high nonlinearity of silicon is exploited for all-optical signal processing. Several investigations have been performed to determine key nonlinear coefficients that were previously unknown in these fibres. Nonlinear absorption experiments allowed for the determination of the degenerate and non-degenerate two-photon absorption coefficients, free carrier cross sections, and free carrier lifetimes of a number of silicon fibres. Nonlinear refraction investigations were then used to establish the Kerr nonlinearity. The strength of this parameter allowed for demonstration of strong self-phase and cross-phase modulation effects. With the insight gained in nonlinear absorption and refraction in silicon optical fibres, all-optical amplitude modulation and wavelength switching was demonstrated at ultrafast sub-picosecond speeds
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