JPL Technical Report Server

Wavefront Control Performance Modeling of WFIRST Shaped Pupil Coronagraph Testbed

Show simple item record

dc.contributor.author Zhou, Hanying
dc.contributor.author Nemati, Bijan
dc.contributor.author Krist, John
dc.contributor.author Cady, Eric
dc.contributor.author Kern, Brian
dc.contributor.author Poberezhskiy, Ilya
dc.date.accessioned 2019-07-23T19:48:57Z
dc.date.available 2019-07-23T19:48:57Z
dc.date.issued 2017-08-06
dc.identifier.citation 2017 SPIE Optics & Photonics, San Diego, California, August 6-10, 2017 en_US
dc.identifier.clearanceno CL#17-3888
dc.identifier.uri http://hdl.handle.net/2014/46533
dc.description.abstract NASA’s WFIRST mission includes a coronagraph instrument (CGI) for direct imaging of exoplanets. Significant improvement in CGI model fidelity has been made recently, alongside a testbed high contrast demonstration in a simulated dynamic environment at JPL. We present our modeling method and results of comparisons to testbed’s high order wavefront correction performance for the shaped pupil coronagraph. Agreement between model prediction and testbed result at better than a factor of 2 has been consistently achieved in raw contrast (contrast floor, chromaticity, and convergence), and with that comes good agreement in contrast sensitivity to wavefront perturbations and mask lateral shear. 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, 2017 en_US
dc.title Wavefront Control Performance Modeling of WFIRST Shaped Pupil Coronagraph Testbed en_US
dc.type Preprint en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search


Browse

My Account