Broadband Sub-terahertz Camera Based on Photothermal Conversion and IR Thermography

M. Romano, A. Chulkov, A. Sommier, D. Balageas, V. Vavilov, J. C. Batsale, C. Pradere

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


This paper describes a fast sub-terahertz (THz) camera that is based on the use of a quantum infrared camera coupled with a photothermal converter, called a THz-to-Thermal Converter (TTC), thus allowing fast image acquisition. The performance of the experimental setup is presented and discussed, with an emphasis on the advantages of the proposed method for decreasing noise in raw data and increasing the image acquisition rate. A detectivity of 160 pW Hz−0.5 per pixel has been achieved, and some examples of the practical implementation of sub-THz imaging are given.

Original languageEnglish
Pages (from-to)448-461
Number of pages14
JournalJournal of Infrared, Millimeter, and Terahertz Waves
Issue number5
Publication statusPublished - 1 May 2016


  • Focal plane array
  • Infrared thermography
  • Non-destructive testing
  • Photothermal converter
  • Sub-terahertz imaging

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Radiation

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