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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 3 — Feb. 6, 2006
  • pp: 1329–1338

Saturation of ablation channels micro-machined in fused silica with many femtosecond laser pulses

J. R. Vázquez de Aldana, C. Méndez, and L. Roso  »View Author Affiliations

Optics Express, Vol. 14, Issue 3, pp. 1329-1338 (2006)

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We investigate the effect of saturation in the propagation of ablation channels performed in fused silica with many incident femtosecond pulses and laser fluence slightly above the ultrafast ablation threshold. A 110 fs Ti:Sapphire laser system is used in the experiments and the results are compared with theoretical predictions performed with a numerical model developed by the authors. Diffraction of the incoming pulses at the entrance of the channel as well as reflections at the walls of the channel play a crucial role in the progress of the crater as it is shown by means of the numerical results. The effect of the pulse duration in the shape of the ablation channel is also investigated.

© 2006 Optical Society of America

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(140.3440) Lasers and laser optics : Laser-induced breakdown
(160.2750) Materials : Glass and other amorphous materials
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

Original Manuscript: December 6, 2005
Revised Manuscript: January 20, 2006
Manuscript Accepted: January 20, 2006
Published: February 6, 2006

J. R. Vázquez de Aldana, C. Méndez, and L. Roso, "Saturation of ablation channels micro-machined in fused silica with many femtosecond laser pulses," Opt. Express 14, 1329-1338 (2006)

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  1. B. C. Stuart, M. D. Feit, A. M. Rubenchik, B. W. Shore, and M. D. Perry, “Laser-induced damage in dielectrics with nanosecond to subpicosecond pulses,” Phys. Rev. Lett. 74, 2248–2251 (1995). [CrossRef] [PubMed]
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  10. The experimental method for measuring the ablation threshold can be found in: G. Dimitru, V. Romano, H. P. Weber, M. Sentis, and W. Marine, “Femtosecond ablation of ultrahard materials,” Appl. Phys. A 74, 729–739 (2002). [CrossRef]
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