Cryogenic spectral performance of bandpass filters for NIRCam instruments

Yalan Mao, David Harrison, Todd Richardson, Bailey Schulz, Dale Taylor, Lynn W. Huff, Scott Horner, Douglas Kelly, Marcia J. Rieke

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

1 Scopus citations


The Bandpass Filters in the NIRCam instrument are required to have high throughput in bandpass spectral region and excellent out-of-band blocking over the entire region of detector spectral response. The high throughput is needed for the instrument to have high sensitivity for detecting distant galaxies, and the out-ofband blocking is needed for accurate calibration on James Webb Space Telescope. The operating temperature of the instrument is at cryogenic temperature from 32 Kelvin to 39.5 Kelvin. We have performed spectral measurement of NIRCam bandpass filters at cryogenic temperature after three cryo-to-ambient cycles. We will report the experiment and results in this paper. This work was performed and funded by NASA Goddard Space Flight Center under Prime Contract NAS5-02105.

Original languageEnglish (US)
Title of host publicationAstronomical and Space Optical Systems
StatePublished - 2009
EventAstronomical and Space Optical Systems - San Diego, CA, United States
Duration: Aug 2 2009Aug 3 2009

Publication series

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


OtherAstronomical and Space Optical Systems
Country/TerritoryUnited States
CitySan Diego, CA


  • Bandpass filter
  • Compound reflectance
  • Cryogenic spectral performance
  • NIRCam

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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