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 10 of 10 for “"fast light"”.
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Brillouin scattering induced transparency and generation of slow and fast light
… to estimate BSIT's effect on the velocity of light pulse. As BSIT modifies the dispersion of light, it is understood as either slowing or advancing light propagation depending on the sign of the slope of the probe phase response. Lastly, the non-reciprocity of Brillouin scattering is …
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Slow and fast light by spectral hole-burning in the solid state
The generation of slow (subliminal) and fast (superluminal) light has attracted a great deal of attention over recent years because of potential applications in optical data storage, optical switching, quantum data processing and pulse regeneration. Slow and fast light can be achieved in materials …
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Slow and Fast Light Using Quantum-Dot and Quantum-Well Semiconductor Optical Amplifiers
Controlling the group velocity of light has great potential applications in future optical communication, photonic computing, and microwave signal processing. These applications have recently triggered immense experimental and theoretical interest in the research community. Numerous studies report …
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Numerical modeling of nonlinear mode interaction in semiconductor lasers and amplifiers to generate slow/fast light
… is one of the techniques to obtain slow light (ng >> 1), fast light (-1 < ng < 1), phase conjugated reflection (also known as backward light (ng < 0)) and supercontinuum emission (also known as critically anomalous dispersion (ng = 0)), where ng is the group index. In the nonlinear …
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Synthesis, Monitoring, and Molechanical Action of Light-Driven Motorized Nanomachines
… a series of unimolecular nanomachines bearing a fast light-driven rotary motor (3 MHz at 25 °C) as a power unit and fluorophores for their monitoring. A well-tailored structural design that unifies the mechanism of propulsion and the requisite monitoring component, made possible the investigation …
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Effect of fuel properties on the first cycle fuel delivery in a Port Fuel Injected Spark Ignition Engine
… less than 10% at cold ambient temperatures. With fast light off catalysts, the first cycle produces a significant portion of the total trip emissions. The low fuel delivery fraction results in high residual liquid fuel in both the port and cylinder; this fuel contributes significantly to the …
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Non-linear optical properties of semiconductor nano-structures for slow light and wavelength conversion
… of relevance to telecommunications, but that the faster spectral hole relaxation rate of quantum wells allows for more efficient conversion of pulses less than 1 ps. We then examine how the cross-gain modulation response of the device can be increased and demonstrate that an additional pump field …
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Multiwavelength studies of classical novae
… phases, yet each nova is new and can show unique light-curve and spectral developments. Therefore, carrying out detailed multiwavelength studies of individual novae is important to provide an holistic picture of the eruption development with the ultimate aim of a general understanding of the …
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Self-consistent dynamical and radiative models of low-luminosity active galactic nuclei
… is time-independent which we refer to as the ``fast-light'' approximation. I then describe the generalization of \grmonty\ to include light travel time effects in arbitrary time-dependent background flows and introduce a new technique for producing images based on time-dependent ray tracing. Our …
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Incorporating double-heterojunction in anisotropic semiconductor nanocrystals for novel optoelectronic applications
… quantum efficiency being achieved leaves light outcoupling as the only remaining means to improve external quantum efficiency (EQE) but that might require radically different device design and reoptimization. However, the current state-of-the-art QD-LEDs are based on spherical core/shell …