Beating the Poisson limit by coupling an occulting mask to wavefront sensing

Details Beating the Poisson limit by coupling an occulting mask to wavefront sensing Beating the Poisson limit by coupling an occulting mask to wavefront sensing

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mnras.359l..23l&link_type=abstract

Monthly Notices of the Royal Astronomical Society: Letters, Volume 359, Issue 1, pp. L23-L26.

Physics

Optics

Instrumentation: Adaptive Optics

Scientific paper

We show that by coupling an occulting mask to a wavefront sensor one can achieve sensitivities that exceed by a factor of 2 in variance the Poissonian limit in wavefront sensing. Examples of applications are the extension to fainter objects of conventional adaptive optics, and the increase in the sky coverage of natural guide star multiconjugated adaptive optics.

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