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Title: Characterization of a high-gain Ne-like Fe transient x-ray laser

Abstract

The authors present experimental results of a high efficiency Ne-like Fe transient collisional excitation x-ray laser using the COMET 15 TW table-top laser system at LLNL. The plasma formation, ionization and collision excitation of the x-ray laser have been optimized using two sequential laser pulses: a plasma formation beam with 5 J energy of 600 ps duration and a pump beam with 5 J energy of 1.2 ps duration. Since the observation of strong lasing on the 255 {angstrom} 3p-3s J = 0-1 transition of Ne-like Fe, they have achieved high gains of 35 cm{sup {minus}1} and saturation of the x-ray laser. A five-stage traveling wave excitation enhances the strongest Fe 3p-3s 255 {angstrom} lasing line as well as additional x-ray lines. A careful characterization of the plasma column conditions using L-shell spectroscopy indicates the degree of ionization along the line focus.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
14668
Report Number(s):
UCRL-JC-135728; DP0102012
DP0102012; TRN: AH200129%%375
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 44th Annual Meeting of the Society of Photo-Optical Instrumentation Engineers, Denver, CO (US), 07/18/1999--07/23/1999; Other Information: PBD: 13 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; EFFICIENCY; EXCITATION; IONIZATION; PLASMA; X-RAY LASERS; GAIN; TRAVELLING WAVES; OPERATION

Citation Formats

Dunn, J, Facnov, A, Fournier, K B, Moon, S J, Osterheld, A, Pikuz, T, and Shlyaptsev, V N. Characterization of a high-gain Ne-like Fe transient x-ray laser. United States: N. p., 1999. Web.
Dunn, J, Facnov, A, Fournier, K B, Moon, S J, Osterheld, A, Pikuz, T, & Shlyaptsev, V N. Characterization of a high-gain Ne-like Fe transient x-ray laser. United States.
Dunn, J, Facnov, A, Fournier, K B, Moon, S J, Osterheld, A, Pikuz, T, and Shlyaptsev, V N. Mon . "Characterization of a high-gain Ne-like Fe transient x-ray laser". United States. https://www.osti.gov/servlets/purl/14668.
@article{osti_14668,
title = {Characterization of a high-gain Ne-like Fe transient x-ray laser},
author = {Dunn, J and Facnov, A and Fournier, K B and Moon, S J and Osterheld, A and Pikuz, T and Shlyaptsev, V N},
abstractNote = {The authors present experimental results of a high efficiency Ne-like Fe transient collisional excitation x-ray laser using the COMET 15 TW table-top laser system at LLNL. The plasma formation, ionization and collision excitation of the x-ray laser have been optimized using two sequential laser pulses: a plasma formation beam with 5 J energy of 600 ps duration and a pump beam with 5 J energy of 1.2 ps duration. Since the observation of strong lasing on the 255 {angstrom} 3p-3s J = 0-1 transition of Ne-like Fe, they have achieved high gains of 35 cm{sup {minus}1} and saturation of the x-ray laser. A five-stage traveling wave excitation enhances the strongest Fe 3p-3s 255 {angstrom} lasing line as well as additional x-ray lines. A careful characterization of the plasma column conditions using L-shell spectroscopy indicates the degree of ionization along the line focus.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
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