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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 18 — Sep. 15, 2011
  • pp: 3611–3613

Lateral shearing with a pair of double Fresnel rhombs for nulling interferometry

Naoshi Baba, Keita Kobayashi, Yusuke Kogoma, and Naoshi Murakami  »View Author Affiliations


Optics Letters, Vol. 36, Issue 18, pp. 3611-3613 (2011)
http://dx.doi.org/10.1364/OL.36.003611


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Abstract

A lateral-shearing interferometer with a pair of double Fresnel rhombs is proposed. Use of Fresnel rhombs enables us to accomplish simultaneously lateral shearing and achromatic nulling. Nulling interferometry with lateral shearing is one of the basic methods for searching directly for extrasolar planets with a segmented-mirror telescope. Here the Thirty-Meter Telescope is considered as a model of a segmented-mirror telescope. Our computer simulations show high extinction for the K-band ( 2.0 2.4 μm ). Optical experiments are conducted to verify the lateral shearing and nulling with a pair of double Fresnel rhombs.

© 2011 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(350.1260) Other areas of optics : Astronomical optics

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: June 29, 2011
Revised Manuscript: August 11, 2011
Manuscript Accepted: August 16, 2011
Published: September 13, 2011

Citation
Naoshi Baba, Keita Kobayashi, Yusuke Kogoma, and Naoshi Murakami, "Lateral shearing with a pair of double Fresnel rhombs for nulling interferometry," Opt. Lett. 36, 3611-3613 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-18-3611

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