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 7 of 7 for “"Relaxation oscillation"”.
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Tuning of the Active Hair Bundle
… in various dynamical regimes, notably in the relaxation-oscillation regime that displays prominently the hair bundle's active process; and in the near-Hopf-bifurcation regime at which auditory hair cells are thought to operate in vivo. We find close similarities between the dynamics of the …
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Enhanced Modulation Dynamic Performance of Optically-Injected Widely-Tunable Semiconductor Lasers
… depends on the tuned lasing wavelength. The relaxation oscillation frequency (ROF) of FR TLD increases from 2.2 GHz to 5.5 GHz with tuning. The main results of investigation of modulation dynamics of OIL TLDs include demonstration of substantial (up to an order of magnitude) increase of the …
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Modal Properties and Spontaneous Emission Factor in Unstable-Resonator Semiconductor Lasers
… above the threshold, and strongly damped relaxation oscillation. In addition, the unstable-resonator is sensitive to the thermal lensing effect that normally occurs when the laser in under CW pumping. In the laser device used in this study, the thermal lensing effects can make the …
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Quantum dot gain-lever laser diode
… enhancement through the damping factors and relaxation oscillation frequency.
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Characterization of the Dynamics of Optically-Injected Nanostructure Lasers
… such as wavelength chirp and inherent relaxation oscillation frequency constraints impede their high-speed and long-distance capabilities. The injection-locking of semiconductor lasers improves the injected laser's operational characteristics under direct-modulation, attracting a large …
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An exploration of prominent cusped-field thruster phenomena : the hollow conical plume and anode current bifurcation
… by a steep jump in anode current and current oscillation amplitude, and, somewhat separately, the coalescence of the ion plume into a hollow cone-like structure with peak fluxes around 30 degrees from the thruster axis. This thesis describes the experimental and numerical work undertaken in an …
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Robust computational methods to simulate slow-fast dynamical systems governed by predator-prey models
… of slow and fast motions, referred to as relaxationoscillations, which are typically challenging to approximate numerically. Granted with a priori knowledge, various time-stepping methods are developed within the framework of partitioning the full problem into fast and slow components, and …