Mg:Fe:LinbO_3晶体光折变增强效应的研究
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O734.2

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国家自然科学基金


STUDY ON THE ENHANCEMENT OF PHOTOREFRECTIVE EFFECT OF Mg: Fe: LiNbO_3 CRYSTAL
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    摘要:

    在铌酸锂晶体中掺MgO和Fe2O3,生长出Mg:Fe:LiNbO3晶体.由于薄晶片的光爬行效应,晶体的二波耦合指数增益系数高达80cm-1,且角度响应范围加宽,响应速度和抗光散射能力都比Fe:LiNbO3有较大改善.以Mg:Fe:LiNbO3晶体作光放大器,实现了一次迭代全息关联存储.

    Abstract:

    With MgO and Fe2O3 doped into LiNbO3 ,the Mg: Fe: LiNbO3 crystal was grown. The highest exponential gain coefficient (r=80cm-1 ) was measured in a thin Mg :Fe: LiNbO3 sample,of which the thickness was 0. 2mm. The sample showed high gain coefficient within a wide angular range. These features were explained by the effect of light crawling, which originated from light scattering with large angles. The response speed and the ability of anti-scattering of Mg:Fe:LiNbO3 were improved as compased with Fe:LiNbO3. The once iteration of output in real-time holographic associative memory was implemented by using Mg:Fe:LiNbO3 as a photorefractive amplifier.

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李铭华,王家昌,赵业权,韩爱珍,高元恺. Mg:Fe:LinbO_3晶体光折变增强效应的研究[J].红外与毫米波学报,1995,14(5):]. Li Minghua, Wang Jiachang, Zhao Yiequan. STUDY ON THE ENHANCEMENT OF PHOTOREFRECTIVE EFFECT OF Mg: Fe: LiNbO_3 CRYSTAL[J]. J. Infrared Millim. Waves,1995,14(5).]

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