Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars

Details Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..430..510m&link_type=abstract

Pathways Towards Habitable Planets, proceedings of a workshop held 14 to 18 September 2009 in Barcelona, Spain. Edited by Vincen

Computer Science

Performance

Scientific paper

We present recent progress in an eight-octant phase-mask (8OPM) coronagraph. We manufactured a phase-mask utilizing a nematic liquid crystal (NLC), which can be switched between the 8OPM and a four-quadrant phase-mask (FQPM) modes. We carried out laboratory experiments on the coronagraphs by using the NLC mask. The experiments demonstrate that the 8OPM coronagraph has a better tolerance of the tip-tilt error than the FQPM one. We manufactured also a fully achromatic 8OPM made of a photonic crystal (PC) device. The PC-8OPM shows good coronagraphic performance (less than 10-5 at peak) for two laser sources (wavelengths of 532 nm and 633 nm).

Affiliated with

Also associated with

No associations

Rating

Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eight-octant Phase-mask Coronagraph for Detecting Earth-like Exoplanets around Partially Resolved Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1117679