NONLINEAR LASER-ABLATION FROM SOLID RARE-GAS FILMS

Authors
SCHILLING G ERNST WE SCHWENTNER N
Citation
G. Schilling et al., NONLINEAR LASER-ABLATION FROM SOLID RARE-GAS FILMS, Applied physics. B, Lasers and optics, 58(4), 1994, pp. 267-271
Citations number
18
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
58
Issue
4
Year of publication
1994
Pages
267 - 271
Database
ISI
SICI code
0946-2171(1994)58:4<267:NLFSRF>2.0.ZU;2-Y
Abstract
Optical breakdown on Ar films is studied in an intensity range from 10 (6) to 2 x 10(9) W/cm2 for wavelengths of 228, 281 and 282.8 nm. The a mount of ablated H2O, N2, O2 and Ar increases quadratically with laser intensity and depends strongly on the exposure time to residual gas a nd on substrate temperature around 24 K. The results can be explained by a model which assumes that the dominant process causing ablation is the heating of a condensed residual gas layer by two-photon absorptio n.