基于CO2激光的AgGaSe2晶体中3次谐波产生  

Third-harmonic generation in AgGaSe_2 crystals based on CO_2 laser

作　　者：饶志明[1,2] 王新兵[1] 肖贤波[2] 卢彦兆[1] 

机构地区：[1]华中科技大学光学与电子信息学院武汉光电国家实验室,武汉430073 [2]江西中医学院计算机学院,南昌330004

出　　处：《激光技术》2013年第4期503-505,共3页Laser Technology

基　　金：国家自然科学基金资助项目(11264019)

摘　　要：为了在AgGaSe2晶体中产生3次谐波,利用自行研制的1台可调谐脉冲CO2激光器,在2次谐波中采用Ⅰ类匹配,并在3次谐波中采用Ⅱ类匹配的方法。实验中CO2激光输出波长为9.6μm,在AgGaSe2晶体中得到了波长为4.8μm的2次谐波以及波长为3.2μm的3次谐波,其峰值功率分别为88kW和4kW,并测量了相位匹配允许角。结果表明,在该AgGaSe2晶体实验中能有效地输出3次谐波,随着CO2激光功率的增大,输出2次谐波峰值功率和3次谐波峰值功率的级数都增加。In order to generate the third harmonic in AgGaSe2 crystals,Ⅰand Ⅱ phase-match were applied for the second and third harmonics of CO2 laser respectively.In the experiment,output wavelength of CO2 laser was 9.6μm.The peak power of the second-harmonic at 4.8μm was 88kW and the peak power of the third-harmonic at 3.2μm was 4kW respectively.The phase-matching acceptance angle was measured.The results show that the second-harmonic wave and the third-harmonic wave are acquired effectively and peak power of the second-harmonic wave and third-harmonic wave increase rapidly with the increase of input power of CO2 laser.

关 键 词：激光技术 3次谐波 相位匹配 CO2激光 AgGaSe2晶体 

分 类 号：TN248.22[电子电信—物理电子学]