光开关玻璃的飞秒光学开关特性  

Femtosecond optical shutter properties of optical shutter glasses

作　　者：孙志红[1] 张波[1] 夏彦文[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《红外与激光工程》2018年第1期247-252,共6页Infrared and Laser Engineering

基　　金：国家自然科学基金(61377102;61605185);国防基础科研计划(B1520133010)

摘　　要：通过在碲玻璃中添加重金属离子,尝试制作了具有较大的非线性折射率、时间响应快、吸收小的光开关玻璃。采用超快飞秒光克尔门技术对光开关玻璃的光克尔信号进行测试,测试结果显示,光开关玻璃的光克尔信号对称性好,信号半高宽度达到~225 fs,三阶非线性极化率达到~0.8×10-20 m2/V2,透过率达到70%~80%;研制的光开关玻璃为皮秒和飞秒光开光材料的选取提供了依据。The optical shutter glasses were fabricated for selecting suitable nonlinear optical materials with large nonlinear refractive index,ultrafast nonlinear response,and small absorption by adding heavy metal ionization to the tellurite glasses.The optical Kerr signals were investigated using the femtosecond optical Kerr shutter technology.It was shown that the Kerr signal of the glass was symmetrical,the full width at half maximum （FWHM） of the optical gating time for both materials were measured to be about 225 fs,the third order nonlinear susceptibility is～0.8×10^-20 m^2/V2,and the optical transmission achieves 70%-80%.This result indicates that glasses studied in this work are very good candidates for the development of Kerr optical shutter applications in the femto and picosecond regimes.

关 键 词：光开关玻璃 三阶非线性系数 光克尔效应 碲酸盐玻璃 

分 类 号：O436.4[机械工程—光学工程]