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Proceedings Paper

Phase-induced amplitude apodization (PIAA) coronagraph testing at the High Contrast Imaging Testbed
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Paper Abstract

We present the current status of our testing of a phase-induced amplitude apodization (PIAA) coronagraph at the Jet Propulsion Lab's High Contrast Imaging Testbed (HCIT) vacuum facilities. These PIAA optics were designed to produce a point-spread function containing a region whose intensity is below 10-9 over a 20-percent fractional bandpass, comparable to the requirements for direct imaging of exoplanets from space. The results presented here show contrast levels of 4×10-7 in monochromatic light, with an inner working angle of 2.4 λ/D. The instrumentation is described here, as well as the testing procedures, wavefront control, and results.

Paper Details

Date Published: 19 August 2009
PDF: 11 pages
Proc. SPIE 7440, Techniques and Instrumentation for Detection of Exoplanets IV, 74400H (19 August 2009); doi: 10.1117/12.826988
Show Author Affiliations
Brian Kern, Jet Propulsion Lab. (United States)
Ruslan Belikov, NASA Ames Research Ctr. (United States)
Amir Give'on, Jet Propulsion Lab. (United States)
Olivier Guyon, Subaru Telescope (United States)
Andreas Kuhnert, Jet Propulsion Lab. (United States)
Marie B. Levine-West, Jet Propulsion Lab. (United States)
Ian C. McMichael, Jet Propulsion Lab. (United States)
Dwight C. Moody, Jet Propulsion Lab. (United States)
Albert F. Niessner, Jet Propulsion Lab. (United States)
Laurent Pueyo, Jet Propulsion Lab. (United States)
Stuart B. Shaklan, Jet Propulsion Lab. (United States)
Wesley A. Traub, Jet Propulsion Lab. (United States)
John T. Trauger, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 7440:
Techniques and Instrumentation for Detection of Exoplanets IV
Stuart B. Shaklan, Editor(s)

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