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High-resolution remote spectroscopy and plasma dynamics induced with UV filaments

Ali Rastegari, Matthias Lenzner, Jean-Claude Diels, Kristen Peterson, and Ladan Arissian

Abstract

Spectroscopy is performed on the plume created by a high-power short-pulse laser on a solid surface. It is shown that high resolution (<10  pm) and accurate spectral analysis can be performed using a self-absorption feature appearing within the emission lines. The time-dependent self-absorption study reveals dynamics of a shock wave.

© 2018 Optical Society of America

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Supplementary Material (1)

NameDescription
Visualization 1       Our shadowgraphy measurement of plume expansion for aluminum target with UV filament at 266 nm. The image is taken with 10 ns pulses at 532 nm. The black dot at the top middle is a reference point. The target is on the right.

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