Investigation of optically active defect clusters in KH2PO4 under laser photoexcitation

被引:22
作者
Demos, SG [1 ]
Staggs, M [1 ]
Yan, M [1 ]
Radousky, HB [1 ]
De Yoreo, JJ [1 ]
机构
[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94580 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.370301
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photoexcited defect clusters in the bulk of KH2PO4 crystals are investigated using a microscopic fluorescence imaging system with 1 mu m spatial resolution. The observed defect cluster concentration is approximately 10(4)-10(6) per mm(3) depending on the crystal growth method and sector of the crystal. The intensity of the emission clusters varies widely within the image field while a nearly uniformly distributed background is present. Spectroscopic measurements provided information on the emission characteristics of the observed defect population. (C) 1999 American Institute of Physics. [S0021-8979(99)05008-2].
引用
收藏
页码:3988 / 3992
页数:5
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