THz imaging using glow discharge detector (GDD) focal plane arrays and large aperture quasi optic mirrors

N. S. Kopeika, A. Abramovich, H. Joseph, D. Rozban, A. Akram, A. Levanon, O. Yadid-Pecht, A. Belenky, S. Lineykin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The properties of terahertz (THz) radiation are well known. They penetrate well most nonconducting media; there are no known biological hazards, and atmospheric attenuation and scattering is lower than for visual and IR radiation. Recently we have found that common miniature commercial neon glow discharge detector (GDD) lamps costing typically about 30 cents each exhibit high sensitivity to THz radiation, with microsecond order rise times, thus making them excellent candidates for such focal plane arrays. Based on this technology we designed, built and tested 4X4 and 8X8 GDD focal plane arrays. A line vector of 32 GDD pixels is being designed in order to increase the number of pixels in such arrays and thus the image resolution. Unique large aperture quasi optic mirrors were design and tested experimentally in this work. A new technology of light weight large aperture mirrors is proposed in this work. In this case a metal coating on plastic substrate is demonstrated. According to first experiments this technology proves to reliable with minimal deformation in LAB conditions. THz Images at 100 GHz were taken using this new inexpensive technology with good quality and resolution.

Original languageEnglish
Title of host publicationMillimetre Wave and Terahertz Sensors and Technology III
DOIs
StatePublished - 13 Dec 2010
EventMillimetre Wave and Terahertz Sensors and Technology III - Toulouse, France
Duration: 20 Sep 201021 Sep 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7837
ISSN (Print)0277-786X

Conference

ConferenceMillimetre Wave and Terahertz Sensors and Technology III
Country/TerritoryFrance
CityToulouse
Period20/09/1021/09/10

Keywords

  • Glow discharge
  • Plasma
  • Quasi-optical design
  • THz detector
  • THz imaging

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