Michelson wide-field stellar interferometry: principles and experimental verification

Details Michelson wide-field stellar interferometry: principles and experimental verification Michelson wide-field stellar interferometry: principles and experimental verification

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apopt..44..328m&link_type=abstract

Applied Optics IP, vol. 44, Issue 3, pp.328-336

Physics

Optics

4

Scientific paper

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.

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