A Shaped Pupil Coronagraph: A Simpler Path towards TPF

Details A Shaped Pupil Coronagraph: A Simpler Path towards TPF A Shaped Pupil Coronagraph: A Simpler Path towards TPF

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.8603s&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #86.03; Bulletin of the American Astronomical Society, Vol. 33, p.1431

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We present recent progress on the optimal design of a shaped pupil coronagraph. This coronagraph consists of a pupil plane stop and an image plane stop. Unlike other coronagraphs, it does not require any apodization. This simplifies its manufacture and eliminates the need for stringent pointing requirements for a telescope. Despite its simplicity, this coronagraph is capable of suppressing starlight by more than 10-10 in much of the image plane outside of 4λ /D. It has much higher throughput (> 20%) than many coronagraph designs. This high throughput reduces integration time requirements and wavefront control requirements.

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