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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 26 — Dec. 30, 2013
  • pp: 31837–31845

Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasmas

Takeshi Higashiguchi, Bowen Li, Yuhei Suzuki, Masato Kawasaki, Hayato Ohashi, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Weihua Jiang, Taisuke Miura, Akira Endo, Padraig Dunne, Gerry O’Sullivan, and Tetsuya Makimura  »View Author Affiliations


Optics Express, Vol. 21, Issue 26, pp. 31837-31845 (2013)
http://dx.doi.org/10.1364/OE.21.031837


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Abstract

We characterize extreme ultraviolet (EUV) emission from mid-infrared (mid-IR) laser-produced plasmas (LPPs) of the rare-earth element Gd. The energy conversion efficiency (CE) and the spectral purity in the mid-IR LPPs at λL = 10.6 μm were higher than for solid-state LPPs at λL = 1.06 μm, because the plasma produced is optically thin due to the lower critical density, resulting in a CE of 0.7%. The peak wavelength remained fixed at 6.76 nm for all laser intensities studied. Plasma parameters at a mid-IR laser intensity of 1.3×1011 W/cm2 was also evaluated by use of the hydrodynamic simulation code to produce the EUV emission at 6.76 nm.

© 2013 Optical Society of America

OCIS Codes
(260.7200) Physical optics : Ultraviolet, extreme
(300.6170) Spectroscopy : Spectra
(350.5400) Other areas of optics : Plasmas

ToC Category:
Spectroscopy

History
Original Manuscript: October 1, 2013
Revised Manuscript: October 24, 2013
Manuscript Accepted: October 24, 2013
Published: December 16, 2013

Citation
Takeshi Higashiguchi, Bowen Li, Yuhei Suzuki, Masato Kawasaki, Hayato Ohashi, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Weihua Jiang, Taisuke Miura, Akira Endo, Padraig Dunne, Gerry O’Sullivan, and Tetsuya Makimura, "Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasmas," Opt. Express 21, 31837-31845 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-26-31837


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