Share Email Print
cover

Proceedings Paper

Research of an infrared pyroelectric sensor based THz detector and its application in CW THz imaging
Author(s): Jun Yang; Xiao-jing Gong; Yan-dong Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Though a bolometer or calorimeter is often used as the detector in a CW THz imaging system, they are inconvenient or time consuming. Whereas a pyroelectric detector is highly desirable for that it can detect CW THz signals with sufficient speed. In this letter, a THz wave detector based on an infrared pyroelectric senor and its application in CW THz imaging are demonstrated. A responsivity of over 1200V/W at 1.89THz with the modulation frequency of less than 30Hz is achieved, and the peak signal to noise ration (SNR) is estimated to be 38dB. With this homemade THz detector and CW optically- pumped THz laser (OPTL), applications of CW THz imaging are investigated, and a spatial resolution of about 0.3mm is presented.

Paper Details

Date Published: 4 August 2009
PDF: 6 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 738521 (4 August 2009); doi: 10.1117/12.832753
Show Author Affiliations
Jun Yang, Shenzhen Institute of Advanced Technology (China)
Xiao-jing Gong, Shenzhen Institute of Advanced Technology (China)
Yan-dong Zhang, Shenzhen Institute of Advanced Technology (China)


Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)

© SPIE. Terms of Use
Back to Top