【报告人简介】
程振洲，天津大学精仪学院教授，博士生导师，电子电气工程师学会（IEEE）/美国光学学会（Optica）/中国光学学会（COS）资深会员（Senior Member）。南开大学物理学学士（2006），光学硕士（2009），香港中文大学电子工程博士（2013）。2015-2018年在东京大学任职助理教授；2018年加入天津大学精仪学院任职教授。研究方向为硅基光子学和纳米光子学。主持国家自然科学基金国际(地区)合作与交流项目、面上基金、青年科学基金、日本学术振兴会科研费、科技创新特区等项目。在Nature Photonics，Nature Communications等学术期刊上发表SCI论文80余篇，被引2700余次。曾获中国教育部高等学校科学研究优秀成果自然科学奖二等奖、香港科学会青年科学家奖等奖励。
Zhenzhou Cheng is currently a professor at School of Precision Instruments and Opto-Electronics Engineering，Tianjin University. He received his B.S. degree in Physics and M.S. degree in Optics from Nankai University. He received his Ph.D. degree in Electronic Engineering from the Chinese University of Hong Kong with the support of the Hong Kong Research Grant Council (RGC) Ph.D. Fellowship Scheme. In 2015, he joined the Department of Chemistry at the University of Tokyo as an assistant professor. In 2018, he joined the School of Precision Instrument and Opto-Electronics Engineering at Tianjin University, as a professor. His research interests focus on silicon photonics and nanophotonics. He published over 80 SCI papers in academic journals, namely, Nature Photonics and Nature Communications, and received several awards such as Second-Class Award in Research Achievements, Ministry of Education, China (2014), Young Scientist Award, Hong Kong Institute of Science (2013).
【报告题目及摘要】
基于四族材料的中红外集成光学 Mid-Infrared Integrated Optics based on Group-IV Materials
中红外光学在光谱分析、疾病诊断、空间通信测距等方面具有广泛的应用。然而，传统的中红外光学系统主要基于自由空间光学开发，受到体积、造价、重量等因素的制约。将集成光学与中红外技术相结合，则有望在成本、能耗、尺寸等方面为中红外光谱应用带来革命性的突破。在过去的研究中，我们面向中红外光谱应用，基于“四族”材料（包括：石墨烯、硅、锗等），开展了中红外波导器件的理论和实验研究，主要包括：光栅耦合器、微环谐振腔、光子晶体纳米腔、非线性波导和光频率梳，电光调制器和光电探测器等。利用不同四族材料的光电特性，所开发的片上集成的红外波导器件可以覆盖极宽的红外窗口：从近红外至中红外分子指纹区（1-15微米）。在本报告中，我将对课题组过去的研究进展做以汇报。
Mid-infrared photonics has tremendous applications in spectroscopy, disease diagnosis, free-space communications, and ranging. However, traditional mid-infrared optical systems are usually developed based on separative and free-space optical components, suffering from bulk, heavy, and expensive setups. To overcome this problem, mid-IR integrated optics has been proposed and demonstrated which are expected to revolutionize mid-infrared applications. In the past few years, our group focused on this area and studied key optoelectronic components based on group-IV materials (e.g., silicon, germanium, carbon allotropes). Our research includes waveguides, couplers, high-Q micro/nanocavities, nonlinear optical devices, Kerr frequency combs, modulators, and photodetectors. By taking advantage of optoelectronic features of different materials, the developed on-chip waveguide-integrated devices are expected to cover a wide spectral range from the functional group region to the fingerprint region. In this talk, I will report research progress in our group in mid-infrared group-IV photonics.
讲座现场
