有机材料ZnTBP-CA-PhR的非线性吸收和光学限幅性能  

Study on nonlinear absorption and optical limiting properties in an organic material ZnTBP-CA-PhR

作　　者：于世瑞[1] 赵有源[1] 李潞瑛[1] 

机构地区：[1]先进光子学材料与器件国家重点实验室,复旦大学光科学与工程系,上海200433

出　　处：《物理学报》2003年第4期859-863,共5页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :698880 0 1;1983 40 3 0 )资助的课题~~

摘　　要：报道了一种新型有机材料ZnTBP CA PhR的光学非线性吸收特性 ,此材料在激光作用下 ,在可见光区域具有反饱和吸收 ,再反饱和吸收和饱和吸收效应 .同时发现该材料优良的光学限幅性能 ,不仅光限幅的阈值低 ,而且限幅前光透射呈线性状态没有光学非线性效应 .用 5能级结构模型及速率方程模拟了饱和及反饱和的实验曲线 。In this paper the nonlinear absorption in the organic material ZnTBP CA PhR is reported. Saturable absorption, reverse saturable absorption and re reverse saturable absorption under an Ar + laser beam in visible light range were observed. This material has fine optical limiting properties. Its intensity threshold is lower than that of other materials and there is no nonlinear optical effect before input intensity reaches the threshold. In order to analyse the physical mechanism of nonlinear absorption of this material, a five level model is presented using the rate equation theory to simulate the saturable absorption and reverse saturable absorption experimental results.

关 键 词：有机材料 ZnTBP-CA-PhR 非线性吸收 光学限幅性 饱和吸收 反饱和吸收 光学非线性效应 

分 类 号：O437[机械工程—光学工程]