The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane

Olivier Guyon; Frantz Martinache; Vincent Garrel; Frederic Vogt; Kaito Yokochi; Takashi Yoshikawa

doi:10.1117/12.857878

The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane

Olivier Guyon, Frantz Martinache, Vincent Garrel, Frederic Vogt, Kaito Yokochi, Takashi Yoshikawa

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

46 Scopus citations

Abstract

The Subaru Coronagraphic Extreme-AO (SCExAO) system is designed for high contrast coronagraphic imaging at small angular separations, and is scheduled to see first light on the Subam Telescope in early 2011. The wavefront control architecture for SCExAO is optimized for scattered light control and calibration at small angular separations, and is described in this paper. Key subsystems for the SCExAO wavefront control architecture have been successfully demonstrated, and we report results from these tests and discuss their role in the SCExAO system. Among these subsystems, a technique which can calibrate and remove static and slow speckles which traditionally limit high contrast detections is discussed. A visible light lab prototype system at Subam Telescope recently demonstrated speckle halo reduction to 2e-7 contrast within 2 λ/D, and removal of static coherent speckles to 3e-9 contrast.

Original language	English (US)
Title of host publication	Adaptive Optics Systems II
Edition	PART 1
DOIs	https://doi.org/10.1117/12.857878
State	Published - 2010
Externally published	Yes
Event	Adaptive Optics Systems II - San Diego, CA, United States Duration: Jun 27 2010 → Jul 2 2010

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Number	PART 1
Volume	7736
ISSN (Print)	0277-786X

Other

Other	Adaptive Optics Systems II
Country/Territory	United States
City	San Diego, CA
Period	6/27/10 → 7/2/10

Keywords

Adaptive optics
Coronagraphy
Exoplanets

ASJC Scopus subject areas

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

Access to Document

10.1117/12.857878

Cite this

Guyon, O., Martinache, F., Garrel, V., Vogt, F., Yokochi, K., & Yoshikawa, T. (2010). The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane. In Adaptive Optics Systems II (PART 1 ed.). Article 773624 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7736, No. PART 1). https://doi.org/10.1117/12.857878

The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane. / Guyon, Olivier; Martinache, Frantz; Garrel, Vincent et al.
Adaptive Optics Systems II. PART 1. ed. 2010. 773624 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7736, No. PART 1).

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

Guyon, O, Martinache, F, Garrel, V, Vogt, F, Yokochi, K & Yoshikawa, T 2010, The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane. in Adaptive Optics Systems II. PART 1 edn, 773624, Proceedings of SPIE - The International Society for Optical Engineering, no. PART 1, vol. 7736, Adaptive Optics Systems II, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.857878

Guyon O, Martinache F, Garrel V, Vogt F, Yokochi K, Yoshikawa T. The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane. In Adaptive Optics Systems II. PART 1 ed. 2010. 773624. (Proceedings of SPIE - The International Society for Optical Engineering; PART 1). doi: 10.1117/12.857878

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title = "The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane",

abstract = "The Subaru Coronagraphic Extreme-AO (SCExAO) system is designed for high contrast coronagraphic imaging at small angular separations, and is scheduled to see first light on the Subam Telescope in early 2011. The wavefront control architecture for SCExAO is optimized for scattered light control and calibration at small angular separations, and is described in this paper. Key subsystems for the SCExAO wavefront control architecture have been successfully demonstrated, and we report results from these tests and discuss their role in the SCExAO system. Among these subsystems, a technique which can calibrate and remove static and slow speckles which traditionally limit high contrast detections is discussed. A visible light lab prototype system at Subam Telescope recently demonstrated speckle halo reduction to 2e-7 contrast within 2 λ/D, and removal of static coherent speckles to 3e-9 contrast.",

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AU - Yokochi, Kaito

AU - Yoshikawa, Takashi

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N2 - The Subaru Coronagraphic Extreme-AO (SCExAO) system is designed for high contrast coronagraphic imaging at small angular separations, and is scheduled to see first light on the Subam Telescope in early 2011. The wavefront control architecture for SCExAO is optimized for scattered light control and calibration at small angular separations, and is described in this paper. Key subsystems for the SCExAO wavefront control architecture have been successfully demonstrated, and we report results from these tests and discuss their role in the SCExAO system. Among these subsystems, a technique which can calibrate and remove static and slow speckles which traditionally limit high contrast detections is discussed. A visible light lab prototype system at Subam Telescope recently demonstrated speckle halo reduction to 2e-7 contrast within 2 λ/D, and removal of static coherent speckles to 3e-9 contrast.

AB - The Subaru Coronagraphic Extreme-AO (SCExAO) system is designed for high contrast coronagraphic imaging at small angular separations, and is scheduled to see first light on the Subam Telescope in early 2011. The wavefront control architecture for SCExAO is optimized for scattered light control and calibration at small angular separations, and is described in this paper. Key subsystems for the SCExAO wavefront control architecture have been successfully demonstrated, and we report results from these tests and discuss their role in the SCExAO system. Among these subsystems, a technique which can calibrate and remove static and slow speckles which traditionally limit high contrast detections is discussed. A visible light lab prototype system at Subam Telescope recently demonstrated speckle halo reduction to 2e-7 contrast within 2 λ/D, and removal of static coherent speckles to 3e-9 contrast.

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The subaru coronagraphic extreme AO (SCExAO) system: Wavefront control and detection of exoplanets with coherent light modulation in the focal plane

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