Persistent Identifier
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hdl:2014/41745 |
Publication Date
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2008-01-23 |
Title
| Path length control in a nulling coronagraph with a MEMS deformable mirror and a calibration interferometer. |
Author
| Rao, Shanti R. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Wallacea, J. Kent (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Samuele, Rocco (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Chakrabarti, Supriya (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Cook, Timothy (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Hicks, Brian (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Jung, Paul (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Lane, Benjamin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Levine, B. Martin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Mendillo, Chris (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Schmidtlin, Edouard (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Shao, Mike (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.)
Stewart, Jason B. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.) |
Point of Contact
|
Use email button above to contact.
Rao, Shanti R. |
Description
| We report progress on a nulling coronagraph intended for direct imaging of extrasolar planets. White light is suppressed in an interferometer, and phase errors are measured by a second interferometer. A 1020-pixel MEMS deformable mirror in the first interferometer adjusts the path length across the pupil. A feedback control system reduces deflections of the deformable mirror to order of 1 nm rms. |
Subject
| Other |
Production Date
| 2008-01-23 |