The Four-Quadrant Phase Mask Coronagraph. III. Laboratory Performance

Details The Four-Quadrant Phase Mask Coronagraph. III. Laboratory Performance The Four-Quadrant Phase Mask Coronagraph. III. Laboratory Performance

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasp..115..712r&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 115, Issue 808, pp. 712-719.

Physics

Optics

28

Instrumentation: Adaptive Optics, Methods: Laboratory, Planetary Systems, Techniques: Image Processing

Scientific paper

We report a laboratory experiment to assess the performance and limitations of the four-quadrant phase mask coronagraph we proposed 2 years ago. A total flux rejection factor of 4400 was reached using off-the-shelf optical components. The peak intensity of the Airy pattern is correspondingly reduced by a factor of 44,000 with a stability of a few hours. In this paper, we discuss implications of this excellent result regarding the next generation of instruments for extrasolar planet detection.

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