Compact LWIR polarimeter for cirrus ice properties

Kira A. Hart, Russell A. Chipman, Dong L. Wu

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

6 Scopus citations


A miniaturized long-wave InfraRed (LWIR) spectro-polarimeter is being developed as a prototype for the Compact Submm-Wave and LWIR Polarimeters (SWIRP) project. The polarimeter in development is a compact (20x20x40 cm) conical-scan instrument to measure the polarimetric radiation from ice cloud scattering at mm-submm (220 and 680 GHz) and IR (8.6, 11, and 12 m) bands. The LWIR polarimeter will provide a series of polarization measurements across the 8.5-12.5 micron band, measuring the full set of linear Stokes parameters (I, Q, U) as a function of wavelength. The spectro-polarimeter uses a combination of birefringent crystals, a Wollaston prism, a diffraction grating, and an uncooled microbolometer array to measure both the degree and angle of linear polarization across the spectral bandwidth by modulating the polarization flux in wavelength with a high order retarder.

Original languageEnglish (US)
Title of host publicationPolarization
Subtitle of host publicationMeasurement, Analysis, and Remote Sensing XIII
EditorsDennis H. Goldstein, David B. Chenault
ISBN (Electronic)9781510618213
StatePublished - 2018
EventPolarization: Measurement, Analysis, and Remote Sensing XIII 2018 - Orlando, United States
Duration: Apr 16 2018Apr 17 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherPolarization: Measurement, Analysis, and Remote Sensing XIII 2018
Country/TerritoryUnited States


  • Channeled spectro-polarimeter
  • Ice clouds
  • LWIR
  • Remote sensing
  • Wollaston prism

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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