@inproceedings{988d916a82584838a7f6de1ad4a8266f,
title = "Optical demonstration of a starshade at flight Fresnel numbers",
abstract = "A starshade is a specially designed opaque screen to suppress starlight and remove the effects of diffraction at the edge. The intensity at the pupil plane in the shadow is dark enough to detect Earth-like exoplanets by using direct imaging. At Princeton, we have designed and built a testbed that allows verification of scaled starshade designs whose suppressed shadow is mathematically identical to that of space starshade. The starshade testbed uses a 77.2 m optical propagation distance to realize the flight Fresnel number of 14.5. Here, we present lab result of a revised sample design operating at a flight Fresnel number. We compare the experimental results with simulations that predict the ultimate contrast performance.",
keywords = "Exoplanets, External Occulters, High Contrast Imaging, Laboratory Scaling, Starshade",
author = "Yunjong Kim and Anthony Harness and Dan Sirbu and Mengya Hu and Mike Galvin and Kasdin, {N. Jeremy} and Vanderbei, {Robert J.} and Shaklan, {Stuart B.}",
note = "Publisher Copyright: {\textcopyright} 2017 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Techniques and Instrumentation for Detection of Exoplanets VIII 2017 ; Conference date: 08-08-2017 Through 10-08-2017",
year = "2017",
doi = "10.1117/12.2273287",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Stuart Shaklan",
booktitle = "Techniques and Instrumentation for Detection of Exoplanets VIII",
address = "United States",
}