24 February 2003 Technology requirements and development path for coronagraphic planet detection
Author Affiliations +
Visible light coronagraphy from space is a promising technique for extrasolar planet detection and characterization. However, technology development in several areas is needed before a search for terrestrial planets is feasible with a coronagraph. The most challenging technologies appear to be: construction of 10 m scale, precision lightweight optics; millikelvin level control of temperature changes; and achieving reflectivity uniformity of 10-4 across all mirrors. Additional technical challenges include: wavefront sensing to the sub-angstrom level; precise, stable deformable mirrors; and construction of coronagraphic masks with accurate shape or transmission profile. The current status and suggested development path of these technologies will be discussed.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger P. Linfield, "Technology requirements and development path for coronagraphic planet detection", Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); doi: 10.1117/12.459825; https://doi.org/10.1117/12.459825


TPF coronagraph wavefront changes due to beam walk
Proceedings of SPIE (September 14 2005)
Studying a simple TPF-C
Proceedings of SPIE (July 07 2006)
MEMS-based extreme adaptive optics for planet detection
Proceedings of SPIE (January 23 2006)

Back to Top