Absorber optimization study for the terahertz intensity mapper (tim)

Rong Nie, Reinier M.J. Janssen, Charles M. Bradford, Jeffrey P. Filippini, Steven Hailey-Dunsheath

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

Abstract

We discuss the design and optimization of the absorber for the long-wavelength arm of the Terahertz Intensity Mapper (TIM), a balloon-borne spectrometer employing Kinetic Inductance Detectors (KIDs). Electromagnetic simulations of our design indicate in-band absorption efficiency over 80% in both linear polarization modes. By developing custom transmission line model and mode-matching calculations, we find the absorption efficiency is affected by the absorber's reactive part and overall shape. These insights into the operation of this design provide guidance for its optimization for low-resistance absorber materials.

Original languageEnglish (US)
Title of host publicationProceedings of the 31st Symposium on Space Terahertz Technology, ISSTT 2020
PublisherInternational Symposium on Space Terahertz Technology
Pages133-135
Number of pages3
ISBN (Electronic)9781713829447
StatePublished - 2020
Event2020 31st IEEE International Symposium on Space Terahertz Technology, ISSTT 2020 - Tempe, United States
Duration: Mar 8 2020Mar 11 2020

Publication series

NameProceedings of the 31st Symposium on Space Terahertz Technology, ISSTT 2020

Conference

Conference2020 31st IEEE International Symposium on Space Terahertz Technology, ISSTT 2020
Country/TerritoryUnited States
CityTempe
Period3/8/203/11/20

Keywords

  • Electromagnetic simulations
  • Kinetic inductance detector
  • Mode matching method
  • Terahertz intensity mapper
  • Transmission line theory

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Absorber optimization study for the terahertz intensity mapper (tim)'. Together they form a unique fingerprint.

Cite this