Laser-conditioning on multilayer dielectric gratings

gao pengpeng; jin yunxia; liu shijie; wang jianpeng; chen shunli

Volume 23 Issue 10

Nov. 2011

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gao pengpeng, jin yunxia, liu shijie, et al. Laser-conditioning on multilayer dielectric gratings[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

gao pengpeng, jin yunxia, liu shijie, et al. Laser-conditioning on multilayer dielectric gratings[J]. High Power Laser and Particle Beams, 2011, 23.

gao pengpeng, jin yunxia, liu shijie, et al. Laser-conditioning on multilayer dielectric gratings[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

gao pengpeng, jin yunxia, liu shijie, et al. Laser-conditioning on multilayer dielectric gratings[J]. High Power Laser and Particle Beams, 2011, 23.

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Laser-conditioning on multilayer dielectric gratings

1.
Key Laboratory of Materials for High Power Laser,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;
2.
Graduate University of Chinese Academy of Sciences,Beijing 100049,China

Publish Date: 2011-10-15

Abstract

Abstract

Laser-conditioning on multilayer dielectric gratings(MDGs) is investigated with the standard N-on-1 test method. It is found that the laser induced damage threshold(LIDT) of MDGs is increased up to 2.0 times the value without laser-conditioning. The possible physical mechanism can be explained by the reduction of contamination and surface roughness in the grating region under the irradiation of laser with low energy. In addition to the existing methods such as grating structure optimization and acid-cleaning, laser-conditioning could be an alternative way to improve the LIDT of MDGs.
- laser induced damage,
- multilayer dielectric gratings,
- laser-conditioning,
- damage resistance,
- fine structure