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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 17695–17705

Vacuum-free x-ray source based on ultrashort laser irradiation of solids

Bixue Hou, James Easter, Aghapi Mordovanakis Karl Krushelnick, and John A. Nees  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 17695-17705 (2008)

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A vacuum-free ultrafast laser-based x-ray source is demonstrated. Hard x-rays up to 80KeV are generated from Cu, Mo, Ag, Sn, and Ge targets in a laminar helium flow surrounded by atmosphere using tightly focused 33fs, 3mJ laser pulses. X-ray spectra, conversion efficiencies, and source sizes are presented. Six-fold efficiency improvement is observed, over similar sources found in the literature [1]. Source sizes determined for Cu and Mo show distinct dependences on laser pulse energy. It is also shown that the Cu source size has no dependence on the presence of the spectral band around the 8KeV K-shell lines.

© 2008 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)
(350.5400) Other areas of optics : Plasmas

ToC Category:
X-ray Optics

Original Manuscript: July 18, 2008
Revised Manuscript: September 11, 2008
Manuscript Accepted: October 12, 2008
Published: October 17, 2008

Bixue Hou, James Easter, Aghapi Mordovanakis, Karl Krushelnick, and John A. Nees, "Vacuum-free x-ray source based on ultrashort laser irradiation of solids," Opt. Express 16, 17695-17705 (2008)

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