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Laboratory demonstration of Phase Induced Amplitude Apodization (PIAA) coronagraph with better than 10-⁹ contrast

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dc.contributor.author Kern, Brian
dc.contributor.author Guyon, Olivier
dc.contributor.author Kuhnert, Andreas
dc.contributor.author Niessnera, Albert
dc.contributor.author Martinache, Frantz
dc.contributor.author Balasubramaniana, Kunjithapatham
dc.date.accessioned 2014-03-06T21:38:27Z
dc.date.available 2014-03-06T21:38:27Z
dc.date.issued 2013-08-27
dc.identifier.citation SPIE Optics and Photonics, San Diego, California, August 25-29, 2013 en_US
dc.identifier.clearanceno CL#13-4091
dc.identifier.uri http://hdl.handle.net/2014/44412
dc.description.abstract We present coronagraphic images from the Phase Induced Amplitude Apodization (PIAA) coronagraph on NASA's High Contrast Imaging Testbed (HCIT) at the Jet Propulsion Lab, showing contrasts of 5×10-¹⁰ averaged from 2-4 λ/D, in monochromatic light at 808 nm. In parallel with the coronagraph and its deformable mirror and coronagraphic wavefront control, we also demonstrate a low-order wavefront control system, giving 100× rms suppression of introduced tip/tilt disturbances down to residual levels of 10−³ λ/D. Current limitations, as well as broadband (10% fractional bandpass) preliminary results are discussed. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013 en_US
dc.subject spatial resolution en_US
dc.subject deformable mirror (DM) en_US
dc.subject wavefront control en_US
dc.title Laboratory demonstration of Phase Induced Amplitude Apodization (PIAA) coronagraph with better than 10-⁹ contrast en_US
dc.type Preprint en_US


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