Andrew P. Williamson
University of Bremen
6 Papers
11 Citations
Andrew P. Williamson is an academic researcher from University of Bremen. The author has contributed to research in topics: Filter (signal processing) & Band-stop filter. The author has an hindex of 3, co-authored 6 publications. Previous affiliations of Andrew P. Williamson include University of Aberdeen.
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Papers
Comparison of existing laser-induced breakdown thermometry techniques along with a time-resolved breakdown approach.
TL;DR: In this work, a comparison of thermometry techniques using laser-induced breakdown is made and an approach to perform simultaneous gas-phase thermometry on a shot-to-shot basis and spectroscopy is demonstrated by monitoring the moment in time the thermal plasma develops along the intensity gradient of a laser pulse.
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Numerical model for predicting experimental effects in enantioselective Raman spectroscopy
TL;DR: In this paper, a ray tracing-based model for the simulation of light scattering experiments is presented for enantioselective Raman (esR) spectroscopy, where the laser beam is considered as a Gaussian beam and the light scattered from the different volume elements illuminated by the laser is traced through the optical components of the signal collection system.
6
Polarization-controlled optical ring cavity (PORC) tunable pulse stretcher
TL;DR: In this article, a new concept and a theoretical approach for modeling a tunable polarization-controlled optical ring cavity pulse stretcher is demonstrated, which permits highly simplified and flexible tuning of the temporal shape of nanosecond duration pulses.
5
Strategies for suppressing elastically scattered laser light in ungated laser-induced breakdown spectroscopy
TL;DR: In this paper, the authors compare different filter types and demonstrate that the filter needs to be chosen taking the experimental setup and the measurement object into account, and a novel approach employing a half-wave plate in the laser beam is introduced and tested.
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