Chinese Optics Letters, 2011, 9 (9): 091402, Published Online: Jun. 20, 2011   

Effect of Ba in KDP crystal on the wavelength dependence of laser-induced damage Download: 622次

Author Affiliations
1 State Key Laboratory, Crystal Materials of Shandong University, Jinan 250100, China
2 Department of Physics, Qilu Normal University, Jinan 250013, China
Abstract
Ba impurity in potassium dihydrogen phosphate (KDP) is studied with the first-principle simulation method. The relaxed configurations and density of the states of KDP crystal with Ba impurity are calculated. We find that Ba can generate a K vacancy and an interstitial O-H unit for charge compensation. The band gap of KDP crystal narrowed down to about 3.9 eV, which is consistent with the experimental data from previously reported studies and indicates that Ba may be a source of low-damage threshold.

Hui Gao, Xun Sun, Xinguang Xu, Baoan Liu, Mingxia Xu, Xian Zhao. Effect of Ba in KDP crystal on the wavelength dependence of laser-induced damage[J]. Chinese Optics Letters, 2011, 9(9): 091402.

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