Characteristics of 355 nm Laser Damage in KDP and DKDP Crystals

被引：3

作者：

Hu Guo-Hang ^{[1
,2
]}

Zhao Yuan-An ^{[1
]}

Sun Shao-Tao ^{[3
]}

Li Da-Wei ^{[1
]}

Liu Xiao-Feng ^{[1
,2
]}

Sun Xun ^{[3
]}

Shao Jian-Da ^{[1
]}

Fan Zheng-Xiu ^{[1
]}

机构：

[1] Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser Mat, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2009年 / 26卷 / 09期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the characteristics of bulk damage induced by the third harmonic of Nd: YAG laser irradiation in KDP and DKDP crystals. Bulk damage occurs as a few or a series of pinpoints consisting of a core and the deforming zone. The results of a 1-on-1 test reveal that the pinpoint size increases with incvreasing fluence, and the pinpoint density increases exponentially with increasing fluence. The results of an s-on-1 test indicate that the pinpoint density increases gradually with laser pulse number, but the size does not grow. These results are consistent with a model in which nanoabsorbers are assumed to exist in the crystal and the initiation of damage is determined by heating them to the critical temperature.

引用

页数：4

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