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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 5 of 5 for “"Time resolved pump/probe"”.
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Applications of pump-probe and two-photon techniques in time-resolved fluorescence miscroscopy and spectroscopy
Pump-probe spectroscopy has long been useful in the elucidating ultrafast molecular phenomena. We developed a variation of time-resolved, pump-probe methodology using cross-correlation principles of the frequency-domain. An unique feature of our technique is that the low-frequency, cross …
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High speed nonlinear optical components for next-generation optical communications
… deployment in next-generation optical networks. Time-resolved pump-probe spectroscopy using pulses with a pulse width of 3ps from mode-locked laser sources was utilized to accurately measure the carrier dynamics in the device(s) under test. The research work into four main topics: (a) a long SOA, …
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Nanometer scale observation of magnetization textures induced by ultrashort laser pulses
… demagnetize magnetic materials on a femtosecond timescale, but even reverse the magnetization in certain (anti-)ferromagnetically coupled alloys and multilayer systems. Very recently, it was demonstrated that laser pulses create topological magnetic solitons called magnetic skyrmions in …
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Time-Resolved Studies of Magnetic and Non-Magnetic Narrow-Gap Semiconductors
… in semiconductors such as NGS on femtosecond time-scales. In this thesis, time-resolved studies of magnetic and non-magnetic NGS using ultrafast-laser spectroscopy techniques such as pump-probe spectroscopy and magneto-optical Kerr/Faraday effect, are reported. Our samples include: InSb-based …
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Four-Wave Mixing Techniques Applied to the Investigation of Non-Adiabatic Dynamics in Polyatomic Molecules
… experiments presented in this work, third-order, time-resolved spectroscopy was applied to the disentanglement of nuclear and electronic degrees of freedom in polyatomic molecules. The motivation for approaching this problem was given by the decisive role that the coupling of nuclear and …