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Terrestrial Planet Finder Coronagraph Optical ModelingThe Terrestrial Planet Finder Coronagraph will rely heavily on modeling and analysis throughout its mission lifecycle. Optical modeling is especially important, since the tolerances on the optics as well as scattered light suppression are critical for the mission's success. The high contrast imaging necessary to observe a planet orbiting a distant star requires new and innovative technologies to be developed and tested, and detailed optical modeling provides predictions for evaluating design decisions. It also provides a means to develop and test algorithms designed to actively suppress scattered light via deformable mirrors and other techniques. The optical models are used in conjunction with structural and thermal models to create fully integrated optical/structural/thermal models that are used to evaluate dynamic effects of disturbances on the overall performance of the coronagraph. The optical models we have developed have been verified on the High Contrast Imaging Testbed. Results of the optical modeling verification and the methods used to perform full three-dimensional near-field diffraction analysis are presented.
Document ID
20080022188
Document Type
Preprint (Draft being sent to journal)
Authors
Basinger, Scott A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Redding, David C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
August 1, 2004
Publication Information
Publication: Proceedings of SPIE. Space Systems Engineering and Optical Alignment Mechanisms
Volume: 5528
ISSN: 0277-786X/04
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Other
Keywords
space telescopes
optics
Terrestrial Planet Finder
modeling
coronagraph