Share Email Print
cover

Proceedings Paper

Influence of microstructure on laser damage threshold of IBS coatings
Author(s): Christopher J. Stolz; Francois Y. Genin; Mark R. Kozlowski; Dale Long; Ramin Lalazari; Zhouling Wu; Pao-Kuang Kuo
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Multilayer coatings deposited by ion-beam sputtering with amorphous layers were found to have lower damage thresholds at 1064 nm than similar coatings with crystalline layers. Interestingly, at higher fluences the damage was less severe for the amorphous coatings. The magnitude of the difference in damage thresholds between the two different microstructures was strongly influenced by the size of the tested areas. To better understand the microstructure effect, single layers of HfO2 with different microstructures were studied using transmission electron microscopy, ellipsometry, and a photothermal deflection technique. Since the laser damage initiated at defects, the influence of thermal diffusivity on thermal gradients in nodular defects is also presented.

Paper Details

Date Published: 27 May 1996
PDF: 9 pages
Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); doi: 10.1117/12.240403
Show Author Affiliations
Christopher J. Stolz, Lawrence Livermore National Lab. (United States)
Francois Y. Genin, Lawrence Livermore National Lab. (United States)
Mark R. Kozlowski, Lawrence Livermore National Lab. (United States)
Dale Long, Research Electro-Optics (United States)
Ramin Lalazari, Research Electro-Optics (United States)
Zhouling Wu, Eastern Michigan Univ. (United States)
Pao-Kuang Kuo, Wayne State Univ. (United States)


Published in SPIE Proceedings Vol. 2714:
27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995
Harold E. Bennett; Arthur H. Guenther; Mark R. Kozlowski; Brian Emerson Newnam; M. J. Soileau, Editor(s)

© SPIE. Terms of Use
Back to Top