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Title: High Repetition Rate Table-Top Soft X-Ray Lasers in Capillary Discharges and Laser-Created Plasmas

Abstract

We discuss very recent advances in high repetition rate soft x-ray lasers resulting from the use of two different types of hot dense plasmas: fast capillary discharges and laser-created plasmas. We have demonstrated a new high repetition rate 46.9 nm capillary discharge laser that fits onto the surface area of a small desk and that operates at a relatively low voltage, therefore not requiring a Marx generator. Laser pulses with an energy of {approx} 13 {mu}J are generated at repetition rates up to 12 Hz. About (2-3)x104 laser shots can be generated with a single capillary. This new type of portable laser is an easily accessible source of intense short wavelength laser light for applications. We also discuss the demonstration of 5 Hz repetition rate table-top soft x-ray lasers producing microwatt average powers at wavelengths ranging from 13.2 to 33 nm. The results were obtained by collisional electron excitation of Ni-like and Ne-like ions in plasmas efficiently heated with a picosecond optical laser pulse impinging at grazing incidence onto a pre-created plasma. Efficient deposition of the pump beam into the gain region allows for the excitation of soft x-ray lasers in this wavelength range with a short pulse pump energymore » of only 1 J.« less

Authors:
; ; ; ; ; ; ; ;  [1];  [2];  [3]
  1. NSF ERC for Extreme Ultraviolet Science and Technology, Colorado State University (United States)
  2. (United States)
  3. Department of Applied Science, University of California Davis-Livermore, Livermore, CA 94551 (United States)
Publication Date:
OSTI Identifier:
20729259
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 808; Journal Issue: 1; Conference: 6. international conference on dense Z-pinches, Oxford (United Kingdom), 25-28 Jul 2005; Other Information: DOI: 10.1063/1.2159362; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAPILLARIES; DEPOSITION; ELECTRIC POTENTIAL; ELECTRON COLLISIONS; ELECTRONS; EXCITATION; GAIN; ION COLLISIONS; IONS; MARX GENERATORS; PLASMA; PLASMA HEATING; PLASMA PRODUCTION; PULSES; SOFT X RADIATION; SURFACE AREA; VISIBLE RADIATION; WAVELENGTHS; X-RAY LASERS

Citation Formats

Rocca, J.J., Luther, B.M., Heinbuch, S., Larotonda, M.A., Wang, Y., Alessi, D., Berrill, M., Marconi, M.C., Menoni, C.S., Electrical and Computer Engineering Department, Colorado State University, and Shlyaptsev, V.N.. High Repetition Rate Table-Top Soft X-Ray Lasers in Capillary Discharges and Laser-Created Plasmas. United States: N. p., 2006. Web. doi:10.1063/1.2159362.
Rocca, J.J., Luther, B.M., Heinbuch, S., Larotonda, M.A., Wang, Y., Alessi, D., Berrill, M., Marconi, M.C., Menoni, C.S., Electrical and Computer Engineering Department, Colorado State University, & Shlyaptsev, V.N.. High Repetition Rate Table-Top Soft X-Ray Lasers in Capillary Discharges and Laser-Created Plasmas. United States. doi:10.1063/1.2159362.
Rocca, J.J., Luther, B.M., Heinbuch, S., Larotonda, M.A., Wang, Y., Alessi, D., Berrill, M., Marconi, M.C., Menoni, C.S., Electrical and Computer Engineering Department, Colorado State University, and Shlyaptsev, V.N.. Thu . "High Repetition Rate Table-Top Soft X-Ray Lasers in Capillary Discharges and Laser-Created Plasmas". United States. doi:10.1063/1.2159362.
@article{osti_20729259,
title = {High Repetition Rate Table-Top Soft X-Ray Lasers in Capillary Discharges and Laser-Created Plasmas},
author = {Rocca, J.J. and Luther, B.M. and Heinbuch, S. and Larotonda, M.A. and Wang, Y. and Alessi, D. and Berrill, M. and Marconi, M.C. and Menoni, C.S. and Electrical and Computer Engineering Department, Colorado State University and Shlyaptsev, V.N.},
abstractNote = {We discuss very recent advances in high repetition rate soft x-ray lasers resulting from the use of two different types of hot dense plasmas: fast capillary discharges and laser-created plasmas. We have demonstrated a new high repetition rate 46.9 nm capillary discharge laser that fits onto the surface area of a small desk and that operates at a relatively low voltage, therefore not requiring a Marx generator. Laser pulses with an energy of {approx} 13 {mu}J are generated at repetition rates up to 12 Hz. About (2-3)x104 laser shots can be generated with a single capillary. This new type of portable laser is an easily accessible source of intense short wavelength laser light for applications. We also discuss the demonstration of 5 Hz repetition rate table-top soft x-ray lasers producing microwatt average powers at wavelengths ranging from 13.2 to 33 nm. The results were obtained by collisional electron excitation of Ni-like and Ne-like ions in plasmas efficiently heated with a picosecond optical laser pulse impinging at grazing incidence onto a pre-created plasma. Efficient deposition of the pump beam into the gain region allows for the excitation of soft x-ray lasers in this wavelength range with a short pulse pump energy of only 1 J.},
doi = {10.1063/1.2159362},
journal = {AIP Conference Proceedings},
number = 1,
volume = 808,
place = {United States},
year = {Thu Jan 05 00:00:00 EST 2006},
month = {Thu Jan 05 00:00:00 EST 2006}
}