Laser-induced damage threshold at chemical vapor deposition-grown diamond surfaces for 200-ps CO(2) laser pulses.
Opt Lett
; 27(3): 164-6, 2002 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-18007743
ABSTRACT
We report laser-induced damage thresholds (LIDTs) at chemical vapor deposition (CVD)-grown diamond surfaces for 200-ps CO(2) 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/cm(2) , respectively, for a laser waist radius of 134 mum. Acoustic measurement indicated a relatively large variation in the LIDT of the CVD-grown diamond because of its polycrystalline structure.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article