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Title: Soft x-ray imaging system for picosecond time-resolved absorption spectroscopy using a femtosecond-laser-plasma source

Abstract

We have developed an imaging system for time-resolved soft x-ray absorption spectroscopy. The system consists of a femtosecond-laser-plasma x-ray source for time-resolved measurements and an x-ray microscope with critical illumination for imaging. The temporal and spatial resolutions were 23 ps and better than 12.5 {mu}m, respectively. We applied this system to the measurement of an aluminum ablation plume induced by irradiation with a 120 fs laser pulse. The shift of the L-shell photoabsorption edge in the expanding plume was observed in the spatiotemporally resolved absorbance spectrum. The space- and time-resolved x-ray absorption spectrum of an expanding laser ablation plume was clearly obtained using the developed system.

Authors:
; ; ;  [1]
  1. NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198 (Japan)
Publication Date:
OSTI Identifier:
20779214
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 77; Journal Issue: 4; Other Information: DOI: 10.1063/1.2194476; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABLATION; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ALUMINIUM; ILLUMINANCE; IMAGES; IRRADIATION; LASERS; MICROSCOPES; PLASMA; SOFT X RADIATION; SPATIAL RESOLUTION; TIME RESOLUTION; X-RAY SOURCES; X-RAY SPECTRA

Citation Formats

Okano, Yasuaki, Oguri, Katsuya, Nishikawa, Tadashi, and Nakano, Hidetoshi. Soft x-ray imaging system for picosecond time-resolved absorption spectroscopy using a femtosecond-laser-plasma source. United States: N. p., 2006. Web. doi:10.1063/1.2194476.
Okano, Yasuaki, Oguri, Katsuya, Nishikawa, Tadashi, & Nakano, Hidetoshi. Soft x-ray imaging system for picosecond time-resolved absorption spectroscopy using a femtosecond-laser-plasma source. United States. doi:10.1063/1.2194476.
Okano, Yasuaki, Oguri, Katsuya, Nishikawa, Tadashi, and Nakano, Hidetoshi. Sat . "Soft x-ray imaging system for picosecond time-resolved absorption spectroscopy using a femtosecond-laser-plasma source". United States. doi:10.1063/1.2194476.
@article{osti_20779214,
title = {Soft x-ray imaging system for picosecond time-resolved absorption spectroscopy using a femtosecond-laser-plasma source},
author = {Okano, Yasuaki and Oguri, Katsuya and Nishikawa, Tadashi and Nakano, Hidetoshi},
abstractNote = {We have developed an imaging system for time-resolved soft x-ray absorption spectroscopy. The system consists of a femtosecond-laser-plasma x-ray source for time-resolved measurements and an x-ray microscope with critical illumination for imaging. The temporal and spatial resolutions were 23 ps and better than 12.5 {mu}m, respectively. We applied this system to the measurement of an aluminum ablation plume induced by irradiation with a 120 fs laser pulse. The shift of the L-shell photoabsorption edge in the expanding plume was observed in the spatiotemporally resolved absorbance spectrum. The space- and time-resolved x-ray absorption spectrum of an expanding laser ablation plume was clearly obtained using the developed system.},
doi = {10.1063/1.2194476},
journal = {Review of Scientific Instruments},
number = 4,
volume = 77,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
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