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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 3 — Mar. 1, 2007
  • pp: 538–543

Comparison of femtosecond and nanosecond laser-induced damage in Hf O 2 single-layer film and Hf O 2 Si O 2 high reflector

Lei Yuan, Yuanan Zhao, Guangqiang Shang, Chengren Wang, Hongbo He, Jianda Shao, and Zhengxiu Fan  »View Author Affiliations


JOSA B, Vol. 24, Issue 3, pp. 538-543 (2007)
http://dx.doi.org/10.1364/JOSAB.24.000538


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Abstract

Hf O 2 single layers, 800 nm high-reflective (HR) coating, and 1064 nm HR coating were prepared by electron-beam evaporation. The laser-induced damage thresholds (LIDTs) and damage morphologies of these samples were investigated with single-pulse femtosecond and nanosecond lasers. It is found that the LIDT of the Hf O 2 single layer is higher than the Hf O 2 Si O 2 HR coating in the femtosecond regime, while the situation is opposite in the nanosecond regime. Different damage mechanisms are applied to study this phenomenon. Damage morphologies of all samples due to different laser irradiations are displayed.

© 2007 Optical Society of America

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(230.4170) Optical devices : Multilayers
(310.0310) Thin films : Thin films
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.4240) Ultrafast optics : Nanosecond phenomena

ToC Category:
Materials

History
Original Manuscript: May 26, 2006
Revised Manuscript: September 7, 2006
Manuscript Accepted: October 25, 2006
Published: February 15, 2007

Citation
Lei Yuan, Yuanan Zhao, Guangqiang Shang, Chengren Wang, Hongbo He, Jianda Shao, and Zhengxiu Fan, "Comparison of femtosecond and nanosecond laser-induced damage in HfO2 single-layer film and HfO2-SiO2 high reflector," J. Opt. Soc. Am. B 24, 538-543 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-3-538

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