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 4 of 4 for “"Modulation instability"”.
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Interaction of charged particle beams with plasmas
… the nonlinear stage of the resistive Weibel instability (WI) is presented and is used to calculate the stopping time of the beam. The model and supporting simulation results lead to the conclusion that the WI initially enhances beam deceleration but then reduces it when compared to a …
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Nonlinear Applications using Silicon Nanophotonic Wires
… demonstration of an ultrafast cross-phase-modulation-based wavelength-conversion (XPM-WC) technique for telecom RZ-OOK data. I also investigate the effect of pump-probe detuning on the efficacy of this XPM-WC technique. In Chapter 5, I show a (primarily) numerical study of a method for …
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Dynamic Strain Measurement Using Brillouin Optical Time-Domain Reflectometry
… BOTDR are discussed, and it is found that the modulation instability is the dominant input threshold for this BOTDR system. The frequency uncertainties of the Brillouin frequency shift, with given pulse durations, fibre lengths and number of averaging, are calculated. The 60Hz sinusoidal strain …
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Phase-resolved reconstruction and forecast of nonlinear irregular wave field based on direct numerical simulations
… wave-wave interaction mechanism, including modulation instability and wave focusing. The developed wave breaking model is calibrated, validated and verified by different wave breaking measurements and excellent agreement is obtained between simulated wave breaking results and measured ones. …