We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Theoretical and experimental study on femtosecond laser induced damage in CaF<sub>2</sub> crystals.
- Authors
Jia, T. Q.; Li, X. X.; Feng, D. H.; Cheng, C. F.; Li, R. X.; Chen, H.; Xu, Z. Z.
- Abstract
We report on the damage threshold in CaF2 crystals induced by femtosecond laser at wavelengths of 800 nm and 400 nm, respectively. The dependences of ablation depths and ablation volumes on laser fluences are also presented. We investigate theoretically the coupling constants between phonon and conduction band electrons (CBE), and calculate the rates of CBE absorbing laser energy. A theoretical model including CBE production, laser energy deposition, and CBE diffusion is applied to study the damage mechanisms. Our results indicate that energy diffusion greatly influences damage threshold and ablation depth.
- Subjects
LASERS; CALCIUM; FLUORINE; FEMTOCHEMISTRY; CONDUCTION bands; ELECTRIC conductivity
- Publication
Applied Physics A: Materials Science & Processing, 2005, Vol 81, Issue 3, p645
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-004-2685-z