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Applied Optics

Applied Optics


  • Vol. 44, Iss. 3 — Jan. 20, 2005
  • pp: 328–336

Michelson wide-field stellar interferometry: principles and experimental verification

I. Montilla, S. F. Pereira, and J. J. M. Braat  »View Author Affiliations

Applied Optics, Vol. 44, Issue 3, pp. 328-336 (2005)

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A new interferometric technique for Michelson wide-field interferometry is presented that consists of a Michelson pupil–plane combination scheme in which a wide field of view can be achieved in one shot. This technique uses a stair-shaped mirror in the intermediate image plane of each telescope in the array, allowing for simultaneous correction of the differential delay for the on-axis and off-axis image positions. Experimental results in a laboratory setup show that it is possible to recover the fringes of on-axis and off-axis stars with an angular separation of 1 arc min simultaneously and with a similar contrast. This new technique represents a considerable extension of the field of view of an interferometer without the need for extra observation time.

© 2005 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(260.3160) Physical optics : Interference
(350.1260) Other areas of optics : Astronomical optics
(350.1270) Other areas of optics : Astronomy and astrophysics

Original Manuscript: April 27, 2004
Revised Manuscript: October 7, 2004
Manuscript Accepted: October 7, 2004
Published: January 20, 2005

I. Montilla, S. F. Pereira, and J. J. M. Braat, "Michelson wide-field stellar interferometry: principles and experimental verification," Appl. Opt. 44, 328-336 (2005)

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