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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 16 — Jun. 1, 2010
  • pp: D106–D114

Polarization interferometric nulling coronagraph for high-contrast imaging

Naoshi Murakami, Kaito Yokochi, Jun Nishikawa, Motohide Tamura, Takashi Kurokawa, Mitsuo Takeda, and Naoshi Baba  »View Author Affiliations


Applied Optics, Vol. 49, Issue 16, pp. D106-D114 (2010)
http://dx.doi.org/10.1364/AO.49.00D106


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Abstract

We propose a novel, high-contrast imager called a polarization interferometric nulling coronagraph (PINC) for direct detection of extrasolar planets. The PINC uses achromatic half-wave plates (HWPs) installed in a fully symmetric beam combiner based on polarizing beam splitters. Jones calculus suggests that a stellar halo suppression level of 10 10 can be achieved at 5 λ / D for a broad wavelength range from 1.6 to 2.2 μm by using Fresnel-rhomb HWPs made of BK7. Laboratory experiments on the PINC used two laser light sources (wavelengths of λ = 532 and 671 nm ), and we obtained a halo suppression level of approximately 10 6 at 5 λ / D for both wavelengths.

© 2010 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization
(350.1260) Other areas of optics : Astronomical optics

ToC Category:
Astronomical Optics and Telesccopes

History
Original Manuscript: November 2, 2009
Revised Manuscript: March 3, 2010
Manuscript Accepted: March 3, 2010
Published: March 24, 2010

Citation
Naoshi Murakami, Kaito Yokochi, Jun Nishikawa, Motohide Tamura, Takashi Kurokawa, Mitsuo Takeda, and Naoshi Baba, "Polarization interferometric nulling coronagraph for high-contrast imaging," Appl. Opt. 49, D106-D114 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-16-D106

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