Laser damage of CaF2(111) surfaces at 248nm

被引：34

作者：

Gogoll, S ^{[1
]}

Stenzel, E ^{[1
]}

Reichling, M ^{[1
]}

Johansen, H ^{[1
]}

Matthias, E ^{[1
]}

机构：

[1] MAX PLANCK INST MIKROSTRUKTUR PHYS, D-06120 HALLE, GERMANY

来源：

APPLIED SURFACE SCIENCE | 1996年 / 96-8卷

关键词：

D O I：

10.1016/0169-4332(95)00440-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-shot laser damage of polished and cleaved CaF2(111) surfaces induced by (248 nm)/(14 ns) pulses was studied by electron microscopy and probe beam deflection, It is shown that the onset of laser damage is fracturing rather than melting. The fragment thickness is found to increase with fluence which points to an enhanced near surface absorption of about 0.4 mu m characteristic depth. Bending of the fragments with typical curvature radii around 100 mu m indicates that within this fragment thickness a transition to plasticity has taken place.

引用

页码：332 / 340

页数：9

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