Polarization aberration in astronomical telescopes

Russell A Chipman, Wai Sze T Lam, James Breckinridge

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

8 Citations (Scopus)

Abstract

The point spread function (PSF) for astronomical telescopes and instruments depends not only on geometric aberrations and scalar wave diffraction, but also on the apodization and wavefront errors introduced by coatings on reflecting and transmitting surfaces within the optical system. The functional form of these aberrations, called polarization aberrations, result from the angles of incidence and the variations of the coatings as a function of angle. These coatings induce small modifications to the PSF, which consists of four separate components, two nearly Airy-disk PSF components, and two faint components, we call ghost PSF components, with a spatial extent about twice the size of the diffraction limited image. As the specifications of optical systems constantly improve, these small effects become increasingly important. It is shown how the magnitude of these ghost PSF components, at ∼10-5 in the example telescope, can interfere with exoplanet detection with coronagraphs.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9613
ISBN (Print)9781628417791
DOIs
StatePublished - 2015
EventPolarization Science and Remote Sensing VII - San Diego, United States
Duration: Aug 11 2015Aug 12 2015

Other

OtherPolarization Science and Remote Sensing VII
CountryUnited States
CitySan Diego
Period8/11/158/12/15

Fingerprint

Astronomical Telescopes
Optical transfer function
point spread functions
Aberrations
Aberration
Telescopes
aberration
Polarization
telescopes
polarization
Coating
ghosts
coatings
Optical systems
Coatings
Optical System
Diffraction
planet detection
wave diffraction
apodization

Keywords

  • imaging
  • Polarization
  • polarization aberration
  • polarization ray tracing

ASJC Scopus subject areas

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

Cite this

Chipman, R. A., Lam, W. S. T., & Breckinridge, J. (2015). Polarization aberration in astronomical telescopes. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9613). [96130H] SPIE. https://doi.org/10.1117/12.2188921

Polarization aberration in astronomical telescopes. / Chipman, Russell A; Lam, Wai Sze T; Breckinridge, James.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9613 SPIE, 2015. 96130H.

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

Chipman, RA, Lam, WST & Breckinridge, J 2015, Polarization aberration in astronomical telescopes. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 9613, 96130H, SPIE, Polarization Science and Remote Sensing VII, San Diego, United States, 8/11/15. https://doi.org/10.1117/12.2188921
Chipman RA, Lam WST, Breckinridge J. Polarization aberration in astronomical telescopes. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9613. SPIE. 2015. 96130H https://doi.org/10.1117/12.2188921
Chipman, Russell A ; Lam, Wai Sze T ; Breckinridge, James. / Polarization aberration in astronomical telescopes. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 9613 SPIE, 2015.
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