Laser-induced damage threshold at chemical vapor deposition–grown diamond surfaces for 200-ps CO2 laser pulses
Optics Letters, Vol. 27, Issue 3, pp. 164-166 (2002)
http://dx.doi.org/10.1364/OL.27.000164
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Abstract
We report laser-induced damage thresholds (LIDTs) at chemical vapor deposition (CVD)–grown diamond surfaces for 200-ps CO2 laser pulses, obtained with photoacoustic diagnostics. The results are compared with those at ZnSe and Ge surfaces under the same experimental condition. For 200-ps laser pulses, CVD diamond, ZnSe, and Ge were measured and found to have damage fluences of 1.2, 0.45, and 0.2 J/cm2 , respectively, for a laser waist radius of 134 μm. Acoustic measurement indicated a relatively large variation in the LIDT of the CVD-grown diamond because of its polycrystalline structure.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(140.3440) Lasers and laser optics : Laser-induced breakdown
(140.3470) Lasers and laser optics : Lasers, carbon dioxide
(160.4670) Materials : Optical materials
(350.1820) Other areas of optics : Damage
Citation
A. C. Chiang, Y. Y. Lin, Y. C. Huang, and M. Babzien, "Laser-induced damage threshold at chemical vapor deposition–grown diamond surfaces for 200-ps CO2 laser pulses," Opt. Lett. 27, 164-166 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-3-164
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