Shaped pupil design for the Gemini Planet Imager
arXiv:0905.1676 · doi:10.1088/0004-637X/698/1/938
Abstract
The Gemini Planet Imager (GPI) is an instrument designed for the Gemini South telescope to image young Jupiter-mass planets in the infrared. To achieve the high contrast needed for this, it employs an apodized pupil Lyot coronagraph (APLC) to remove most of the starlight. Current designs use a partially-transmitting apodizer in the pupil; we examine the use of binary apodizations in the form of starshaped shaped pupils, and present a design that could achieve comparable performance, along with a series of design guidelines for creating shaped pupil versions of APLCs in other systems.
20 pages, 7 figures, accepted for publication in ApJ
References in corpus (7)
- Direct Imaging of Multiple Planets Orbiting the Star HR 8799
- Optical Images of an Exosolar Planet 25 Light Years from Earth
- A probable giant planet imaged in the Beta Pictoris disk
- Fast computation of Lyot-style coronagraph propagation
- Speckle noise and dynamic range in coronagraphic images
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