Linear diattenuation and retardance measurements in an IR spectropolarimeter

David B. Chenault, Russell A. Chipman

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

4 Scopus citations

Abstract

A technique to measure linear diattenuation and retardance spectra of infrared samples in transmission has been developed. A sample is rotated between two fixed linear polarizers in the sample compartment of an infrared spectrometer. The intensity modulation resulting from the rotation of the sample is Fourier analyzed and the diattenuation and retardation of the sample are calculated from these Fourier series coefficients. For single plate devices, such as waveplates, sheet polarizers, or liquid crystals, whose thickness is known, the birefringence spectrum can also be determined. This technique has been utilized in the sample compartment of a Fourier transform infrared spectropolarimeter to determine the linear diattenuation and retardance spectra from 2.5 to 16.5 microns of an infrared multiple order retarder, two achromatic retarders, and a liquid crystal sample.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsRussel A. Chipman, John W. Morris
PublisherPubl by Int Soc for Optical Engineering
Pages263-278
Number of pages16
ISBN (Print)0819403725
StatePublished - Dec 1 1990
Externally publishedYes
EventPolarimetry: Radar, Infrared, Visible, Ultraviolet, and X-Ray - Huntsville, AL, USA
Duration: May 15 1990May 17 1990

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1317
ISSN (Print)0277-786X

Other

OtherPolarimetry: Radar, Infrared, Visible, Ultraviolet, and X-Ray
CityHuntsville, AL, USA
Period5/15/905/17/90

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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  • Cite this

    Chenault, D. B., & Chipman, R. A. (1990). Linear diattenuation and retardance measurements in an IR spectropolarimeter. In R. A. Chipman, & J. W. Morris (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 263-278). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1317). Publ by Int Soc for Optical Engineering.