3月18日下午两点，美国俄克拉何马大学电气和计算机工程学院的史智盛教授在信息学院四楼报告厅做了题为《Development of IV-VI mid-IR Semiconductor Opto-Electronic Devices 》的报告。信息、物理等学院的老师和同学参加并聆听了报告。

    在报告中，史智盛教授首先介绍了IV-VI族非制冷中红外波段半导体探测器和光子晶体（PC）激光器的发展历程。他说，近一个世纪以来，大家都认为氧是多晶硒化铅光电探测器肿触发光响应的关键因素。但是，史教授通过对硒化铅样品所做的光致发光（PL）及其响应的研究表明，氧气只是一种有效的敏化剂，在触发光响应中起到决定性作用的是碘而不是氧。接下来他还介绍了可在室温下工作的硅衬底上制作的中红外表面发光的光子晶体激光器。他说，多层量子阱（MQWs）组成的活动区域是由光子晶体阵列Si(111)衬底上的MBE生成的。这个光子晶体阵列形成的是一个横磁波的极化光子带隙。在室温下脉冲光泵浦，观察到了波长为3.5微米的多模激光。这样的光子晶体激光器可以作为小型化集成式的激光气体传感器，应用到环境监测和医疗领域。

    报告结束后，史智盛教授耐心回答了现场师生的提问，整个学术报告现场气氛热烈融洽。史智盛教授深入浅出的讲解，使老师和同学们加深了对相关技术的了解，有利于自身专业研究，史智盛教授的精彩演讲得到了同学们和老师的热烈掌声。

报告人简介：Zhisheng Shi received his Ph.D. degree in optoelectronic materials in 1995 from Physics Department in Albert-Ludwig-University in Germany. He was a Research Scholar Fellow of German Aerospace Administration from 1992 to 1995. From 1995 to 1997, he was a research staff at Swiss Federal Institute of Technology (ETH). He has been a faculty member in the School of Electrical and Computer Engineering at the University of Oklahoma since 1997. He was honored as Gerald Tuma Presidential Professor in 2007. He is the founder and president of Nanolight Inc, a spin-off company developing mid/long-IR detector, mid-IR lasers and 3rd generation solar cells. He and his students have published about 60 peer-reviewed articles in the field of semiconductor thin film growth, nano/micro-semiconductor fabrication, laser and detector.