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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 5 — May. 1, 2013
  • pp: 1352–1356

Surface structuring of fused silica with asymmetric femtosecond laser pulse bursts

Javier Hernandez-Rueda, Jan Siegel, Marcial Galvan-Sosa, Alexandro Ruiz de la Cruz, and Javier Solis  »View Author Affiliations


JOSA B, Vol. 30, Issue 5, pp. 1352-1356 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001352


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Abstract

Fused silica surface structuring has been performed using temporally shaped femtosecond laser pulses. For this purpose we have designed pulse bursts with a triangular intensity envelope and different slope sign and interpulse separation that were experimentally generated using a home-made temporal pulse shaper. We have found that pulse bursts with decreasing intensity envelopes are remarkably more efficient in terms of surface ablation than bursts with increasing intensity envelopes. The results reveal that laser energy coupling in the material is enhanced as the interpulse spacing decreases. A study of the ablation depth using stretched single pulses was carried out and compared to results obtained for pulse bursts with different interpulse spacing. We find that the deepest crater was achieved with bursts of 0.5 ps interpulse separation and decreasing envelope. This pulse form also induced the largest change of the surface reflectivity after irradiation. The results are discussed in terms of how the laser energy coupling efficiency is linked to the temporal pulse shape.

© 2013 Optical Society of America

OCIS Codes
(320.5540) Ultrafast optics : Pulse shaping
(320.7120) Ultrafast optics : Ultrafast phenomena

ToC Category:
Ultrafast Optics

History
Original Manuscript: March 4, 2013
Manuscript Accepted: March 19, 2013
Published: April 24, 2013

Citation
Javier Hernandez-Rueda, Jan Siegel, Marcial Galvan-Sosa, Alexandro Ruiz de la Cruz, and Javier Solis, "Surface structuring of fused silica with asymmetric femtosecond laser pulse bursts," J. Opt. Soc. Am. B 30, 1352-1356 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-5-1352

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