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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 28 — Oct. 1, 2007
  • pp: 6885–6895

Common-path achromatic interferometer-coronagraph: images from a breadboard demonstrator

Alexander V. Tavrov, Jun Nishikawa, Motohide Tamura, Lyu Abe, Kaito Yokochi, Takashi Kurokawa, and Mitsuo Takeda  »View Author Affiliations


Applied Optics, Vol. 46, Issue 28, pp. 6885-6895 (2007)
http://dx.doi.org/10.1364/AO.46.006885


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Abstract

A three-dimensional common-path interferometer is proposed, which can achromatically null out an on-axis source while maintaining the detectability of an off-axis source. A geometric phase in the three-dimensional interferometer introduces an achromatic π-phase shift to the light from the on-axis source, such that destructive interference nulls out the axial light at one of the ports of the interferometer. Light from the off-axis source, which is exempt from destructive interference, comes out from both ports with equal intensity. The common-path scheme makes the system highly immune to environmental disturbances. In the described experiment, a 6 × 10 6 peak-to-peak nulling contrast was obtained.

© 2007 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: May 24, 2007
Revised Manuscript: July 27, 2007
Manuscript Accepted: July 28, 2007
Published: September 21, 2007

Citation
Alexander V. Tavrov, Jun Nishikawa, Motohide Tamura, Lyu Abe, Kaito Yokochi, Takashi Kurokawa, and Mitsuo Takeda, "Common-path achromatic interferometer-coronagraph: images from a breadboard demonstrator," Appl. Opt. 46, 6885-6895 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-28-6885

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