Dark conductivity, photoconductivity, and light-induced absorption in photorefractive sillenite crystals

被引：36
|
作者：
Mosquera, L
de Oliveira, I
Frejlich, J
Hernandes, AC
Lanfredi, S
Carvalho, JF
机构：
[1] IFGW, Lab Opt, BR-13083970 Campinas, SP, Brazil
[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[3] Univ Fed Goias, Inst Fis, BR-94001970 Goiania, Go, Brazil
来源：
JOURNAL OF APPLIED PHYSICS | 2001年 / 90卷 / 06期
关键词：
D O I：
10.1063/1.1390501
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We measure the bulk and light-induced absorption as well as the dark- and photoconductivity in doped and undoped photorefractive Bi12TiO20 crystals and compare the results obtained using different techniques. From these data we compute the quantum efficiency for the photogeneration of charge carriers and the carriers mobility-lifetime product, and characterize the suitability of these crystals for holographic recording. A two-center model theory is shown to adequately describe absorption and photoconduction in these materials. (C) 2001 American Institute of Physics.
引用
收藏
页码：2635 / 2641
页数：7
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