12 October 2004 Wavefront amplitude errors for a TPF coronagraph: their effects and possible correction
Author Affiliations +
Abstract
Successful planet searches with a Terrestrial Planet Finder (TPF) coronagraph will require a highly uniform wavefront, in both phase and amplitude. Requirements for phase and amplitude uniformity are derived. A Deformable Mirror (DM) can achieve broadband correction of phase errors across the full observing band. Correction of amplitude errors with a DM is also possible, but only over half the image plane, and only for a limited bandwidth. For a 500-600 nm observing band, use of a DM can relax the reflectivity uniformity requirements on TPF mirrors by a factor of 10-15, and these relaxed requirements appear to be within the current capability for mirror coatings.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger P. Linfield, Roger P. Linfield, } "Wavefront amplitude errors for a TPF coronagraph: their effects and possible correction", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.549290; https://doi.org/10.1117/12.549290
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT

Optical budgeting for LUVOIR
Proceedings of SPIE (July 05 2018)
Terrestrial Planet Finder coronagraph
Proceedings of SPIE (November 18 2003)
Jovian Planet Finder optical system
Proceedings of SPIE (March 02 2003)
Segmented telescopes for coronagraphs
Proceedings of SPIE (October 11 2004)

Back to Top