METAMATERIALS TO SEE IN TERAHERTZ IN "COLORS"

被引:0
|
作者
Zhou, Zhitao [1 ,2 ]
Li, Hua [2 ,3 ]
Zhou, Tao [3 ]
Shi, Zhifeng [4 ]
Cao, Juncheng [2 ,3 ]
Tao, Hu [1 ,2 ,5 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Transducer Technol, Shanghai, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Key Lab Terahertz Solid State Technol, Shanghai, Peoples R China
[4] Fudan Univ, Dept Neurosurg, Huashan Hosp, Shanghai, Peoples R China
[5] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA
基金
中国国家自然科学基金;
关键词
DESIGN;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report real-time, multi-spectrally selective terahertz (THz) imaging using multi-spectral metamaterial focal plane arrays (MM-FPAs) that arc fully compatible with standard micro-electro-mechanical systems (MEMS) processes. A set of frequency switchable quantum cascade lasers (QCLs) is used as THz sources for multi-spectral illumination. Both MM-FPAs and QCLs can be readily tuned to operate at multiple discrete THz frequencies to match the "fingerprints" of the analytes. Frequency selective material identification of concealed substances are successfully demonstrated, which promises a great potential of this technique in security sensing applications.
引用
收藏
页码:805 / 807
页数:3
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