A 2 × 2 array receiver at 1.4 THz based on HEB mixers and a Fourier phase grating local oscillator

X. X. Liu, D. J. Hayton, Y. C. Luo, L. Wei, N. Vercruyssen, J. R. Gao, Christopher Groppi

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

3 Scopus citations

Abstract

We report on realization of a 2 × 2 NbN hot electron bolometer (HEB) array receiver using multiple local oscillator (LO) beams that are obtained from a Fourier phase grating mirror. The grating splits a 1.4 THz single beam into four uniform sub-beams. Two 50mm lenses are applied to collimate each beam in order to achieve a spacing of 12mm between them. The LO power in each beam is shown to be enough to fully pump the HEB mixer elements. The IV curves, noise temperature and IF bandwidth for each pixel is then characterized.

Original languageEnglish (US)
Title of host publication26th International Symposium on Space Terahertz Technology, ISSTT 2015
PublisherInternational Symposium on Space Terahertz Technology
StatePublished - 2015
Event26th International Symposium on Space Terahertz Technology, ISSTT 2015 - Cambridge, United States
Duration: Mar 16 2015Mar 18 2015

Other

Other26th International Symposium on Space Terahertz Technology, ISSTT 2015
CountryUnited States
CityCambridge
Period3/16/153/18/15

ASJC Scopus subject areas

  • Radiation
  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Atomic and Molecular Physics, and Optics
  • Space and Planetary Science

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    Liu, X. X., Hayton, D. J., Luo, Y. C., Wei, L., Vercruyssen, N., Gao, J. R., & Groppi, C. (2015). A 2 × 2 array receiver at 1.4 THz based on HEB mixers and a Fourier phase grating local oscillator. In 26th International Symposium on Space Terahertz Technology, ISSTT 2015 International Symposium on Space Terahertz Technology.