SPACE-CHARGE FIELD FEEDBACK EFFECT ON CARRIER TRANSPORT IN PHOTOREFRACTIVE CDTEV

被引：9

作者：

JARASIUNAS, K ^{[1
]}

DELAYE, P ^{[1
]}

LAUNAY, JC ^{[1
]}

ROOSEN, G ^{[1
]}

机构：

[1] POLE RECH AQUITAIN MAT ESPACE,F-33165 ST MEDARD,FRANCE

来源：

OPTICS COMMUNICATIONS | 1992年 / 93卷 / 1-2期

关键词：

D O I：

10.1016/0030-4018(92)90129-F

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser induced picosecond transient gratings are used to study carrier transport via free carrier and photorefractive nonlinearities. Carrier lifetime (tau(R) = 1.7 ns), hole and ambipolar mobilities (mu(h) = 85 cm2 V-1 s-1 and mu(a) = 146 cm2 V-1 s-1) are measured directly, and electron mobility equal to 520 cm2 V-1 s-1 is calculated for CdTe:V at an impurity concentration of 10(19) cm-3. Feed-back effect of light induced space charge electric field is found responsible for diffracted beam intensity modulation during the grating recording and its decay.

引用

页码：59 / 65

页数：7

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