A broadband focal plane array camera for real-time thz imaging applications

Georgios Trichopoulos, H. Lee Mosbacker, Don Burdette, Kubilay Sertel

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

We present a large-format, sub-millimeter-resolution, focal plane array sensor for THz imaging. Each pixel in the sensor array consists of broadband THz antennas monolithically integrated with ultra-fast heterostructure backward diodes for THz sensing. With the aid of in-house hybrid electromagnetic modeling tools, the focal plane array is optimized for diffraction limited image resolution and conjugate impedance matching for highest THz sensitivity. The camera is designed to operate in the 0.6-1.2 THz band with 5 frames-per-second image acquisition speeds, making it ideal for THz imaging applications, such as security screening, non-destructive evaluation and chemical, pharmaceutical, and medical imaging. The simulation results are validated by measurements to demonstrate sub-millimeter resolution with a pixel optical responsivity of 600 V/W at 0.7 THz.

Original languageEnglish (US)
Article number6420898
Pages (from-to)1733-1740
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number4
DOIs
StatePublished - 2013
Externally publishedYes

Fingerprint

Focal plane arrays
focal plane devices
Pixels
Cameras
pixels
cameras
broadband
Imaging techniques
impedance matching
Image acquisition
sensors
Medical imaging
image resolution
Sensor arrays
Image resolution
Drug products
format
Heterojunctions
acquisition
Screening

Keywords

  • Focal plane arrays
  • heterostructure backward diodes
  • quasi-optical imaging
  • tHz imaging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

A broadband focal plane array camera for real-time thz imaging applications. / Trichopoulos, Georgios; Mosbacker, H. Lee; Burdette, Don; Sertel, Kubilay.

In: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 4, 6420898, 2013, p. 1733-1740.

Research output: Contribution to journalArticle

Trichopoulos, Georgios ; Mosbacker, H. Lee ; Burdette, Don ; Sertel, Kubilay. / A broadband focal plane array camera for real-time thz imaging applications. In: IEEE Transactions on Antennas and Propagation. 2013 ; Vol. 61, No. 4. pp. 1733-1740.
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