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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 29 — Oct. 10, 2003
  • pp: 5897–5905

Comparison of linear and rotationally shearing interferometric layouts for extrasolar planet detection from space

Marija Strojnik and Gonzalo Paez  »View Author Affiliations


Applied Optics, Vol. 42, Issue 29, pp. 5897-5905 (2003)
http://dx.doi.org/10.1364/AO.42.005897


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Abstract

We use the point spread function and the modulation transfer function (MTF) as two figures-of-merit to evaluate the performance of the multiaperture interferometric configurations for the detection of a faint planet in the vicinity of its bright star. We design nonredundant interferometric layouts that provide satisfactory coverage of the spatial frequencies of interest. We propose a design incorporating a rotating, rotationally shearing interferometer in a gravity-free environment and compare its performance with the Earth-based, fixed, linear configurations. The side peak of its MTF may be centered on the coordinate associated with a likely planet spatial frequency, resulting in planet signal enhancement and isolation.

© 2003 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(110.4280) Imaging systems : Noise in imaging systems
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(350.4600) Other areas of optics : Optical engineering

History
Original Manuscript: April 7, 2003
Revised Manuscript: May 29, 2003
Published: October 10, 2003

Citation
Marija Strojnik and Gonzalo Paez, "Comparison of linear and rotationally shearing interferometric layouts for extrasolar planet detection from space," Appl. Opt. 42, 5897-5905 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-29-5897

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