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Conferences > PMED > 1991 > MA > MA4

A New Photorefractive Material KNSBN:Co

Quanzhong Jiang, Yongyuan Song, Daliang Sun, Xinliang Lu, and Huanchu Chen

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Abstract

Potassium sodium strontium barium niobate (KNSBN) has been developed in our country for the first time1. It is a new ferroelectric with A-sites thoroughly occupied by K+, Na+, Sr2+ and Ba2+ ions. Comparing to BaTiO3, KNSBN crystals have no phase transition at room temperature, but have large hardness coefficient and 180° ferroelectric domains that are easy to be polarized. KNSBN will be one of the most prospective photorefractive materials that can be used in holographic storage , image amplification and optical phase conjugation2. The purpose of this paper is to describe the crystal growth and photorefractive properties of KNSBN:Co.

© 1991 Optical Society of America

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