Use Of A Laser Produced Plasma In Time-Resolved Transmission And Reflection Spectroscopy

H. van Brug; M.J. van der Wiel

doi:10.1117/12.965032

4 February 1988 Use Of A Laser Produced Plasma In Time-Resolved Transmission And Reflection Spectroscopy

H. van Brug, M.J. van der Wiel

Proceedings Volume 0831, X-Rays from Laser Plasmas; (1988) https://doi.org/10.1117/12.965032
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

An apparatus for time-resolved X-ray absorption measurements is discussed. The apparatus consists of a 15 ns, 20 J Nd:YAG/glass laser system, a polychromator for soft X-rays and a multichannel detector system. X-ray emission spectra of a laser produced plasma (LPP) for 15 different target materials are shown. Time resolved X-ray absorption measurements (90-190 eV) on clouds of Si particles, produced by laser irradiation of bulk Si, are presented. From these measurements the following results were obtained: Clusters are formed at an irradiance as low as 3.0 J/cm2; at an irradiance of 14 J/cm2 ionized species up to Si 4+ are formed; at an irradiance of J/cm2 at 15 ns pulse duration, a Si layer thickness of 80 Å is removed.

Citation Download Citation

H. van Brug and M.J. van der Wiel "Use Of A Laser Produced Plasma In Time-Resolved Transmission And Reflection Spectroscopy", Proc. SPIE 0831, X-Rays from Laser Plasmas, (4 February 1988); https://doi.org/10.1117/12.965032

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