A 180 deg rotation shearing interferometer with increased optical efficiency

Details A 180 deg rotation shearing interferometer with increased optical efficiency A 180 deg rotation shearing interferometer with increased optical efficiency

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980optco..32...48g&link_type=abstract

Optics Communications, vol. 32, Jan. 1980, p. 48-50.

Physics

Optics

Interferometers, Optical Properties, Signal To Noise Ratios, Systems Engineering, Interferometry, Telescopes

Scientific paper

Use of a rotating wedge-shaped mirror rather than a rotating prism gives a higher throughput rotation shearing interferometer. The new interferometer has polarization problems if the shear differs from 0 deg or 180 deg. However, for the commonly used 180 deg shear, the new interferometer offers a 4-fold reduction in time required for observations employing short-exposure sequences.

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