Share Email Print
cover

Proceedings Paper

Laser-induced damage of multilayer dielectric for broadband pulse compression grating
Author(s): Fanyu Kong; Shunli Chen; Shijie Liu; Yunxia Jin; Heyuan Guan; Ying Du; Chaoyang Wei; Hongbo He; Kui Yi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The multilayer dielectrics (MLDs) for broad bandwidth 800nm pulse compression gratings were fabricated with optimized design by electron beam evaporation using three different kinds of materials (Ta2O5/SiO2/HfO2), which had more than 99% reflectance with bandwidth larger than 160nm around the center wavelength of 800 nm and high transmission at the exposure wavelength of 413nm. Laser-induced damage behaviors of the mirrors were investigated. It was found that the laser-induced damage threshold (LIDT) of the samples could reach 1.0J/cm2 and 2.0J/cm2 in the normal beam (57 degrees, TE mode) at pulse duration of 50fs and 120fs, respectively. The depth information of the damage sites at these two cases was explored by atomic force microscope (AFM). The reason of the sample having so high LIDT was also discussed in this paper. The MLDs provide a solid base for the high laser threshold 800nm pulse compression gratings and may open a new way for broad bandwidth 800nm reflectance coatings used in the ultrashort pulse laser system.

Paper Details

Date Published: 12 January 2012
PDF: 10 pages
Proc. SPIE 8206, Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers, 82060P (12 January 2012); doi: 10.1117/12.910263
Show Author Affiliations
Fanyu Kong, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Shunli Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Shijie Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Yunxia Jin, Shanghai Institute of Optics and Fine Mechanics (China)
Heyuan Guan, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Ying Du, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Chaoyang Wei, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Hongbo He, Shanghai Institute of Optics and Fine Mechanics (China)
Kui Yi, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8206:
Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers
Jianda Shao, Editor(s)

© SPIE. Terms of Use
Back to Top