Modeling dielectric half-wave plates for cosmic microwave background polarimetry using a Mueller matrix formalism

Sean A. Bryan, Thomas E. Montroy, John E. Ruhl

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We derive an analytic formula using the Mueller matrix formalism that parameterizes the nonidealities of a half-wave plate (HWP) made from dielectric antireflection-coated birefringent slabs. This model accounts for frequency-dependent effects at normal incidence, including effects driven by the reflections at dielectric boundaries. The model also may be used to guide the characterization of an instrument that uses a HWP. We discuss the coupling of a HWP to different source spectra, and the potential impact of that effect on foreground removal for the SPIDER cosmic microwave background experiment. We also describe a way to use this model in a mapmaking algorithm that fully corrects for HWP nonidealities.

Original languageEnglish (US)
Pages (from-to)6313-6323
Number of pages11
JournalApplied Optics
Volume49
Issue number32
DOIs
StatePublished - Nov 10 2010
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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