脉冲强激光与碲镉汞相互作用时的冲量耦合  

THE IMPULSE COUPLING OF INTERACTION BETWEEN HgCdTe AND INTENSIVE PULSED LASER

作　　者：李向阳[1] 赵建华 朱文娟 胡燮荣 刘骥[2] 

机构地区：[1]山东大学红外遥感研究室,济南250100 [2]长春光机学院,长春130000

出　　处：《红外与激光工程》1997年第4期30-34,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金

摘　　要：用冲击摆的方法测量了脉冲激光与碲锅汞冲量耦合系数，发现所测量的耦合系数受样品靶面积的影响，面积越大，系数越大；面积越小，系数也越小。这是因为强激光发射形成的激波引起的，利用激波膨胀模型，解释了这一现象。The impulse coupling coefficient of HgCdTe and intensive pulsed laser interaction is measured experimentally. It is found out that the measured impulse cou-pling coefficient is affected by the sample's area. The big sample with large area has a great coefficient, while the little one has a small coefficient. It is thought that this is due to the shock wave which is formed by intensive laser irradiation. Using a model of the attenuated propagation of shock wave, we calculated the impulse delivered to samples by the shock wave.Comparison of the calculations with experimental data yields satisfactory agreement,which shows validty of this explanation.

关 键 词：冲量耦合 脉冲强激光 碲镉汞 红外探测器 

分 类 号：TN215[电子电信—物理电子学] TN24