Optical requirements and modeling of coupling devices for future far-infrared space missions

N. Trappe, J. R. Gao, D. Glowacka, D. Goldie, D. Griffin, P. Khosropanah, P. Mauskopf, D. Morozov, A. Murphy, C. O'Sullivan, M. Ridder, S. Withington

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


The next generation of space missions targeting far-infrared bands will require large-format arrays of extremely lownoise detectors. The development of Transition Edge Sensors (TES) array technology seems to be a viable solution for future mm-wave to Far-Infrared (FIR) space applications where low noise and high sensitivity is required. In this paper we concentrate on a key element for a high sensitivity TES detector array, that of the optical coupling between the incoming electromagnetic field and the phonon system of the suspended membrane. An intermediate solution between free space coupling and a single moded horn is where over-moded light pipes are used to concentrate energy onto multimoded absorbers. We present a comparison of modeling techniques to analyze the optical efficiency of such light pipes and their interaction with the front end optics and detector cavity.

Original languageEnglish (US)
Title of host publicationTerahertz Technology and Applications III
StatePublished - May 3 2010
Externally publishedYes
EventTerahertz Technology and Applications III - San Francisco, CA, United States
Duration: Jan 27 2010Jan 28 2010

Publication series

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


OtherTerahertz Technology and Applications III
Country/TerritoryUnited States
CitySan Francisco, CA


  • Modeling multimoded structures
  • Optical coupling
  • Transition edge sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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