南京信息工程大学学报2011，Vol.3Issue(1)：58-61,4.
二维正方晶格光控太赫兹波调制器
Optical-control terahertz wave modulator based on two-dimensional square lattice
摘要
Abstract
A novel terahertz modulator based on photonic crystal is presented. The modulator combines the structure of line defect and point defect,and is designed to be tunable by filling the point defect with nonlinear material GaAs. Without external pumplight, there is defect mode in the point defect. While by applying external pumplight to the defect with specific wavelength and intensity,the defect mode in the two defects \soutwill disappears. Based on this mechanism,the device can modulates the on-off state of the terahertz wave in specific wavelength. The numerical simulation results show that this THz modulator has a extinction ratio of more than 51. 10 dB , responses within dozens of picoseconds,and has a small size and is easy to integrate.关键词
砷化镓/太赫兹波/调制器/光子晶体分类
信息技术与安全科学引用本文复制引用
陈鹤鸣,徐妍..二维正方晶格光控太赫兹波调制器[J].南京信息工程大学学报,2011,3(1):58-61,4.基金项目
资助项目国家自然科学基金(61077084) （61077084）
南京邮电大学科研基金(NY207053) （NY207053）
