A large-format focal plane array for rapid THz computed tomography

Georgios C. Trichopoulos, Kubilay Sertel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a large-format focal plane array sensor for THz imaging. Each pixel of the sensor array consists of an 85μm×92μm lithographically fabricated wideband dual-slot antenna, monolithically integrated with an ultra-fast diode tuned for the 0.6-1.2 THz band. The small antenna footprint enables a densely packed THz imaging array. Concurrently, optimum impedance matching was implemented for maximum pixel sensitivity, enabling real-time image acquisition. The video rate response time (25 Hz) achieved by the THz focal plane array sensor enables, for the first time, the practical realization of THz computed tomography. Cross-sectional images of representative objects were captured in less than 2 minutes for tomography reconstruction. We demonstrate sub-millimeter image resolution as well as unique quantitative and qualitative information about the test samples in the THz band.

Original languageEnglish (US)
Title of host publication2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
Pages2269-2270
Number of pages2
DOIs
StatePublished - Dec 1 2013
Externally publishedYes
Event2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Orlando, FL, United States
Duration: Jul 7 2013Jul 13 2013

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

Other2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
CountryUnited States
CityOrlando, FL
Period7/7/137/13/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Trichopoulos, G. C., & Sertel, K. (2013). A large-format focal plane array for rapid THz computed tomography. In 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings (pp. 2269-2270). [6711793] (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). https://doi.org/10.1109/APS.2013.6711793