基于纳米尺度高折射率差亚波长光栅的硅基宽光谱增强型集成光探测器研究

项目名称： 基于纳米尺度高折射率差亚波长光栅的硅基宽光谱增强型集成光探测器研究

项目编号： No.61274044

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 段晓峰

作者单位： 北京邮电大学

项目金额： 80万元

中文摘要： 高速光通信系统和网络的飞速发展对光电子器件性能提出了更高的要求，基于新型微纳结构的硅基光子集成器件已经成为高速光电子器件发展的必然趋势之一。亚波长光栅作为一种新型微纳结构，应用于高性能光电子器件的研究开始得到人们极大的关注，特别是当亚波长光栅结构进入纳米尺度，采用特殊图案，甚至非对称结构时，会产生新的光学现象和物理规律。针对这一课题的研究将有助于高性能光电子器件的发展，并推动包括高速光通信、光网络在内的多领域器件的革新与升级。项目主要研究基于纳米尺度的高折射率差亚波长光栅实现光反射、透射、偏振和会聚的基础科学问题，以及硅基亚波长光栅在高速宽光谱增强型集成光探测器中的应用。希望借助纳米尺度新型微纳结构，使器件具有易于集成，高响应带宽，同时在长波长通信波段宽光谱范围内实现高量子效率的特点。本项目的研究工作将为基于新结构、新工艺、新材料的新型光电子集成器件研究提供基础和思路。

中文关键词： 光子集成；光探测器；亚波长光栅；蘑菇型结构；汇聚反射镜

英文摘要： With the rapid development of high-speed optical communication system and networks, more demanding requirements are imposed on the optoelectronic devices. Silicon based optoelectronic integrated devices with novel micro-nano structures have become one of the important development trends for the high-speed optoelectronic devices. As novel micro-nano structures, subwavelength gratings used in high-performance optoelectronic devices, are attracting a lot of attention. When the period of subwavelength gratings are at the scale of nanometer, and employing special patterns or even asymmetric structures, new optical phenomena and physical laws will emerge. Study on this subject will contribute to developing of high-performance optoelectronic devices and push forward the device renovation and promotion in multiple fields including high-speed optical communication and optical networks.This project focus on the basic science studies on control of optical fields, such as light reflection, transmission, polarization, convergence, by using nanoscale high-contrast subwavelength gratings. Furthermore, it will be studied that Si-based subwavelength gratings applied in high-speed broad-band integrated photodetectors. We hope that, incorporating novel nanoscale structures, the device will be easy to be integrated, obtain high sp

英文关键词： Photonic Integration；photodetector；subwavelength grating；mushroom structure；focusing reflector