Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph

Brian Kern; Olivier Guyon; Amir Give'on; Andreas Kuhnert; Albert Niessner

doi:10.1117/12.896467

Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph

Brian Kern, Olivier Guyon, Amir Give'on, Andreas Kuhnert, Albert Niessner

Optical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

We present high-contrast images from laboratory testing of a Phase Induced Amplitude Apodization (PIAA) coronagraph at NASA's High Contrast Imaging Testbed (HCIT). Using a deformable mirror and wavefront estimation and control algorithms, we create a "dark hole" in the monochromatic point-spread function with an inner working angle of 2.05 fλ/D, with a mean intensity 3.5×10^-8. We discuss the contributions to this floor, and the techniques being developed to improve it. We also present simulations that investigate the effect of Lyot stops of various sizes, and conclude that a Lyot stop is necessary for 10^-9 performance but that an annular postapodizer is not necessary.

Original language	English (US)
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets V
DOIs	https://doi.org/10.1117/12.896467
State	Published - 2011
Event	Techniques and Instrumentation for Detection of Exoplanets V - San Diego, CA, United States Duration: Aug 23 2011 → Aug 24 2011

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8151
ISSN (Print)	0277-786X

Other

Other	Techniques and Instrumentation for Detection of Exoplanets V
Country/Territory	United States
City	San Diego, CA
Period	8/23/11 → 8/24/11

Keywords

Exoplanets
coronagraphy
deformable mirror
wavefront control
wavefront estimation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.896467

Cite this

Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph. / Kern, Brian; Guyon, Olivier; Give'on, Amir et al.
Techniques and Instrumentation for Detection of Exoplanets V. 2011. 815104 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8151).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kern, B, Guyon, O, Give'on, A, Kuhnert, A & Niessner, A 2011, Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph. in Techniques and Instrumentation for Detection of Exoplanets V., 815104, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8151, Techniques and Instrumentation for Detection of Exoplanets V, San Diego, CA, United States, 8/23/11. https://doi.org/10.1117/12.896467

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title = "Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph",

abstract = "We present high-contrast images from laboratory testing of a Phase Induced Amplitude Apodization (PIAA) coronagraph at NASA's High Contrast Imaging Testbed (HCIT). Using a deformable mirror and wavefront estimation and control algorithms, we create a {"}dark hole{"} in the monochromatic point-spread function with an inner working angle of 2.05 fλ/D, with a mean intensity 3.5×10-8. We discuss the contributions to this floor, and the techniques being developed to improve it. We also present simulations that investigate the effect of Lyot stops of various sizes, and conclude that a Lyot stop is necessary for 10-9 performance but that an annular postapodizer is not necessary.",

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AU - Kern, Brian

AU - Guyon, Olivier

AU - Give'on, Amir

AU - Kuhnert, Andreas

AU - Niessner, Albert

PY - 2011

Y1 - 2011

N2 - We present high-contrast images from laboratory testing of a Phase Induced Amplitude Apodization (PIAA) coronagraph at NASA's High Contrast Imaging Testbed (HCIT). Using a deformable mirror and wavefront estimation and control algorithms, we create a "dark hole" in the monochromatic point-spread function with an inner working angle of 2.05 fλ/D, with a mean intensity 3.5×10-8. We discuss the contributions to this floor, and the techniques being developed to improve it. We also present simulations that investigate the effect of Lyot stops of various sizes, and conclude that a Lyot stop is necessary for 10-9 performance but that an annular postapodizer is not necessary.

AB - We present high-contrast images from laboratory testing of a Phase Induced Amplitude Apodization (PIAA) coronagraph at NASA's High Contrast Imaging Testbed (HCIT). Using a deformable mirror and wavefront estimation and control algorithms, we create a "dark hole" in the monochromatic point-spread function with an inner working angle of 2.05 fλ/D, with a mean intensity 3.5×10-8. We discuss the contributions to this floor, and the techniques being developed to improve it. We also present simulations that investigate the effect of Lyot stops of various sizes, and conclude that a Lyot stop is necessary for 10-9 performance but that an annular postapodizer is not necessary.

KW - Exoplanets

KW - coronagraphy

KW - deformable mirror

KW - wavefront control

KW - wavefront estimation

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BT - Techniques and Instrumentation for Detection of Exoplanets V

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Y2 - 23 August 2011 through 24 August 2011

ER -

Laboratory testing of a Phase-Induced Amplitude Apodization (PIAA) coronagraph

Abstract

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Keywords

ASJC Scopus subject areas

Access to Document

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