TY - GEN
T1 - A large-format focal plane array for rapid THz computed tomography
AU - Trichopoulos, Georgios C.
AU - Sertel, Kubilay
PY - 2013/12/1
Y1 - 2013/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84894166471&partnerID=8YFLogxK
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U2 - 10.1109/APS.2013.6711793
DO - 10.1109/APS.2013.6711793
M3 - Conference contribution
AN - SCOPUS:84894166471
SN - 9781467353175
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 2269
EP - 2270
BT - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings
T2 - 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013
Y2 - 7 July 2013 through 13 July 2013
ER -