BEAM-COUPLING IN TETRAGONAL POTASSIUM TANTALATE-NIOBATE CRYSTALS

被引：6
作者：
LOHEIDE, S
RIEHEMANN, S
KRATZIG, E
机构：
[1] Universität Osnabrück, Fachbereich Physik, Osnabrück
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1994年 / 58卷 / 04期
关键词：
D O I：
10.1007/BF00323607
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Beam-coupling is investigated in a nominally pure tetragonal potassium Tantalate-Niobate (KTN) crystal as a function of external electric field, spatial frequency and light wavelength. The variation of these parameters leads to a change of the direction of energy transfer between the two recording beams. The experimental results can be consistently described by a one-center charge-transport model taking into account electron and hole contributions to photoconductivity and space-charge limitations due to the available trap density.
引用
收藏
页码：343 / 347
页数：5
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