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

Kern, Brian; Guyon, Olivier; Kuhnert, Andreas; Niessnera, Albert; Martinache, Frantz; Balasubramaniana, Kunjithapatham

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