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Proceedings Paper

Beamsplitters for astronomical optical interferometry
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Paper Abstract

We discuss an optical interferometer's beamsplitter from the points of view of visibility loss and phase, critical to astrometry. A beamsplitter having no symmetries is described by 16 parameters, all functions of optical frequency; if all symmetries are present this number is reduced to four, only two of which are relevant to astronomical interferometry. We have developed a novel multi-layer design which covers fully a factor of three in wavelength while contributing a minimum of visibility loss, light loss, and systematic error.

Paper Details

Date Published: 26 June 1995
PDF: 17 pages
Proc. SPIE 2477, Spaceborne Interferometry II, (26 June 1995); doi: 10.1117/12.212989
Show Author Affiliations
James D. Phillips, Smithsonian Astrophysical Observatory (United States)
Carolyn F. Hickey, Litton Itek Optical Systems (United States)


Published in SPIE Proceedings Vol. 2477:
Spaceborne Interferometry II
Robert D. Reasenberg, Editor(s)

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