Journal
FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING
Volume 20, Issue 5, Pages 591-607Publisher
ZHEJIANG UNIV
DOI: 10.1631/FITEE.1800633
Keywords
Terahertz (THz) time-domain spectroscopy; Micro-cavity; Metal holes array; Waveguide cavities; Spoof localized surface plasmons (LSPs)
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Funding
- National Key RAMP
- D Program of China [2018YFF01013003]
- Program of Shanghai Pujiang Program, China [17PJD028]
- National Natural Science Foundation of China [61671302, 61601291, 61722111]
- Shuguang Program
- Shanghai Education Development Foundation
- Shanghai Municipal Education Commission, China [18SG44]
- Key Scientific and Technological Project of Science and Technology Commission of Shanghai Municipality, China [15DZ0500102]
- Shanghai Leading Talent, China [2016-019]
- [Q2016212]
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We give a brief review of the developments in terahertz time-domain spectroscopy (THz-TDS) systems and micro-cavity components for probing samples in the University of Shanghai for Science and Technology. The broadband terahertz (THz) radiation sources based on GaAs m-i-n diodes have been investigated by applying high electric fields. Then, the free space THz-TDS and fiber-coupled THz-TDS systems produced in our lab and their applications in drug/cancer detection are introduced in detail. To further improve the signal-to-noise ratio (SNR) and enhance sensitivity, we introduce three general micro-cavity approaches to achieve tiny-volume sample detection, summarizing our previous results about their characteristics, performance, and potential applications.
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