Understanding the optical and electrical properties of a new photorefractive potassium niobate crystal

被引：3

作者：

Evans, DR ^{[1
]}

Cook, G

Carns, JL

Saleh, MA

Basun, SA

Seim, JM

Mizell, GJ

机构：

[1] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

[2] Universal Technol Corp, Dayton, OH 45432 USA

[3] Anteon Corp, Dayton, OH 45431 USA

[4] Universal Energy Syst Inc, Dayton, OH 45432 USA

[5] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[6] VLOC, New Port Richey, FL 34655 USA

来源：

JOURNAL OF LUMINESCENCE | 2006年 / 119卷

关键词：

potassium niobate; photorefractive; photovoltaic; two-beam coupling;

D O I：

10.1016/j.jlumin.2006.01.059

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical and electrical measurements have been made on a new codoped potassium niobate crystal that yields a significant increase in linear absorption, photocurrent, and photorefractive beam coupling efficiency. The Ag impurity enters the K site, changing the local field in the lattice. The Fe in the Nb site, perturbed by the replacement of the next near-neighbor K with Ag, is responsible for the enhanced linear and nonlinear properties. The modified material parameters result in an increase of the photorefractive counter-propagating two-beam coupling efficiency. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：535 / 540

页数：6

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