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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 26 — Dec. 25, 2006
  • pp: 13113–13119

Enhanced energy coupling in femtosecond laser-metal interactions at high intensities

A.Y. Vorobyev and Chunlei Guo  »View Author Affiliations

Optics Express, Vol. 14, Issue 26, pp. 13113-13119 (2006)

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It is commonly believed that thermal energy remaining in a target is negligible following femtosecond laser ablation. In contrast to this belief, however, we observe a significant enhancement in thermal energy retained in a target following single-pulse ablation. Ambient gas plasmas produced near the sample surface are shown to play a key role in the enhanced residual energy coupling. Our study reveals, for the first time, an enhanced energy coupling in single-shot high-intensity femtosecond laser-metal interactions and provides new guidelines for a broad range of technological applications.

© 2006 Optical Society of America

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors

ToC Category:
Ultrafast Optics

Original Manuscript: October 6, 2006
Manuscript Accepted: December 10, 2006
Published: December 22, 2006

A. Y. Vorobyev and Chunlei Guo, "Enhanced energy coupling in femtosecond laser-metal interactions at high intensities," Opt. Express 14, 13113-13119 (2006)

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