The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales

N. Jovanovic; F. Martinache; O. Guyon; C. Clergeon; G. Singh; T. Kudo; V. Garrel; K. Newman; D. Doughty; J. Lozi; J. Males; Y. Minowa; Y. Hayano; N. Takato; J. Morino; J. Kuhn; E. Serabyn; B. Norris; P. Tuthill; G. Schworer; P. Stewart; L. Close; E. Huby; G. Perrin; S. Lacour; L. Gauchet; S. Vievard; N. Murakami; F. Oshiyama; N. Baba; T. Matsuo; J. Nishikawa; M. Tamura; O. Lai; F. Marchis; G. Duchene; T. Kotani; J. Woillez

doi:10.1086/682989

The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales

N. Jovanovic, F. Martinache, O. Guyon, C. Clergeon, G. Singh, T. Kudo, V. Garrel, K. Newman, D. Doughty, J. Lozi, J. Males, Y. Minowa, Y. Hayano, N. Takato, J. Morino, J. Kuhn, E. Serabyn, B. Norris, P. Tuthill, G. SchworerP. Stewart, L. Close, E. Huby, G. Perrin, S. Lacour, L. Gauchet, S. Vievard, N. Murakami, F. Oshiyama, N. Baba, T. Matsuo, J. Nishikawa, M. Tamura, O. Lai, F. Marchis, G. Duchene, T. Kotani, J. Woillez

Research output: Contribution to journal › Article › peer-review

284 Citations (Scopus)

Abstract

The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of exoplanetary systems and serves as a testbed for high-contrast imaging technologies for ELTs. It is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host. Wavefront sensing and control are key to the operation of SCExAO. A partial correction of low-order modes is provided by Subaru’s facility adaptive optics system with the final correction, including high-order modes, implemented downstream by a combination of a visible pyramid wavefront sensor and a 2000-element deformable mirror. The well-corrected NIR (y-K bands) wavefronts can then be injected into any of the available coronagraphs, including but not limited to the phase-induced amplitude apodization and the vector vortex coronagraphs, both of which offer an inner working angle as low as 1λ/D. Noncommon path, low-order aberrations are sensed with a coronagraphic low-order wavefront sensor in the infrared (IR). Low noise, high frame rate NIR detectors allow for active speckle nulling and coherent differential imaging, while the HAWAII 2RG detector in the HiCIAO imager and/or the CHARIS integral field spectrograph (from mid-2016) can take deeper exposures and/or perform angular, spectral, and polarimetric differential imaging. Science in the visible is provided by two interferometric modules: VAMPIRES and FIRST, which enable subdiffraction limited imaging in the visible region with polarimetric and spectroscopic capabilities respectively. We describe the instrument in detail and present preliminary results both onsky and in the laboratory.

Original language	English
Pages (from-to)	890-910
Number of pages	21
Journal	Publications of the Astronomical Society of the Pacific
Volume	127
Issue number	955
DOIs	https://doi.org/10.1086/682989
Publication status	Published - 1 Sep 2015

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10.1086/682989

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Jovanovic, N., Martinache, F., Guyon, O., Clergeon, C., Singh, G., Kudo, T., Garrel, V., Newman, K., Doughty, D., Lozi, J., Males, J., Minowa, Y., Hayano, Y., Takato, N., Morino, J., Kuhn, J., Serabyn, E., Norris, B., Tuthill, P., ... Woillez, J. (2015). The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales. Publications of the Astronomical Society of the Pacific, 127(955), 890-910. https://doi.org/10.1086/682989

Jovanovic, N. ; Martinache, F. ; Guyon, O. ; Clergeon, C. ; Singh, G. ; Kudo, T. ; Garrel, V. ; Newman, K. ; Doughty, D. ; Lozi, J. ; Males, J. ; Minowa, Y. ; Hayano, Y. ; Takato, N. ; Morino, J. ; Kuhn, J. ; Serabyn, E. ; Norris, B. ; Tuthill, P. ; Schworer, G. ; Stewart, P. ; Close, L. ; Huby, E. ; Perrin, G. ; Lacour, S. ; Gauchet, L. ; Vievard, S. ; Murakami, N. ; Oshiyama, F. ; Baba, N. ; Matsuo, T. ; Nishikawa, J. ; Tamura, M. ; Lai, O. ; Marchis, F. ; Duchene, G. ; Kotani, T. ; Woillez, J. / The subaru coronagraphic extreme adaptive optics system : Enabling high-contrast imaging on solar-system scales. In: Publications of the Astronomical Society of the Pacific. 2015 ; Vol. 127, No. 955. pp. 890-910.

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title = "The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales",

abstract = "The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of exoplanetary systems and serves as a testbed for high-contrast imaging technologies for ELTs. It is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host. Wavefront sensing and control are key to the operation of SCExAO. A partial correction of low-order modes is provided by Subaru{\textquoteright}s facility adaptive optics system with the final correction, including high-order modes, implemented downstream by a combination of a visible pyramid wavefront sensor and a 2000-element deformable mirror. The well-corrected NIR (y-K bands) wavefronts can then be injected into any of the available coronagraphs, including but not limited to the phase-induced amplitude apodization and the vector vortex coronagraphs, both of which offer an inner working angle as low as 1λ/D. Noncommon path, low-order aberrations are sensed with a coronagraphic low-order wavefront sensor in the infrared (IR). Low noise, high frame rate NIR detectors allow for active speckle nulling and coherent differential imaging, while the HAWAII 2RG detector in the HiCIAO imager and/or the CHARIS integral field spectrograph (from mid-2016) can take deeper exposures and/or perform angular, spectral, and polarimetric differential imaging. Science in the visible is provided by two interferometric modules: VAMPIRES and FIRST, which enable subdiffraction limited imaging in the visible region with polarimetric and spectroscopic capabilities respectively. We describe the instrument in detail and present preliminary results both onsky and in the laboratory.",

author = "N. Jovanovic and F. Martinache and O. Guyon and C. Clergeon and G. Singh and T. Kudo and V. Garrel and K. Newman and D. Doughty and J. Lozi and J. Males and Y. Minowa and Y. Hayano and N. Takato and J. Morino and J. Kuhn and E. Serabyn and B. Norris and P. Tuthill and G. Schworer and P. Stewart and L. Close and E. Huby and G. Perrin and S. Lacour and L. Gauchet and S. Vievard and N. Murakami and F. Oshiyama and N. Baba and T. Matsuo and J. Nishikawa and M. Tamura and O. Lai and F. Marchis and G. Duchene and T. Kotani and J. Woillez",

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language = "English",

volume = "127",

pages = "890--910",

journal = "Publications of the Astronomical Society of the Pacific",

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publisher = "University of Chicago Press",

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Jovanovic, N, Martinache, F, Guyon, O, Clergeon, C, Singh, G, Kudo, T, Garrel, V, Newman, K, Doughty, D, Lozi, J, Males, J, Minowa, Y, Hayano, Y, Takato, N, Morino, J, Kuhn, J, Serabyn, E, Norris, B, Tuthill, P, Schworer, G, Stewart, P, Close, L, Huby, E, Perrin, G, Lacour, S, Gauchet, L, Vievard, S, Murakami, N, Oshiyama, F, Baba, N, Matsuo, T, Nishikawa, J, Tamura, M, Lai, O, Marchis, F, Duchene, G, Kotani, T & Woillez, J 2015, 'The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales', Publications of the Astronomical Society of the Pacific, vol. 127, no. 955, pp. 890-910. https://doi.org/10.1086/682989

The subaru coronagraphic extreme adaptive optics system : Enabling high-contrast imaging on solar-system scales. / Jovanovic, N.; Martinache, F.; Guyon, O.; Clergeon, C.; Singh, G.; Kudo, T.; Garrel, V.; Newman, K.; Doughty, D.; Lozi, J.; Males, J.; Minowa, Y.; Hayano, Y.; Takato, N.; Morino, J.; Kuhn, J.; Serabyn, E.; Norris, B.; Tuthill, P.; Schworer, G.; Stewart, P.; Close, L.; Huby, E.; Perrin, G.; Lacour, S.; Gauchet, L.; Vievard, S.; Murakami, N.; Oshiyama, F.; Baba, N.; Matsuo, T.; Nishikawa, J.; Tamura, M.; Lai, O.; Marchis, F.; Duchene, G.; Kotani, T.; Woillez, J.

In: Publications of the Astronomical Society of the Pacific, Vol. 127, No. 955, 01.09.2015, p. 890-910.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The subaru coronagraphic extreme adaptive optics system

T2 - Enabling high-contrast imaging on solar-system scales

AU - Jovanovic, N.

AU - Martinache, F.

AU - Guyon, O.

AU - Clergeon, C.

AU - Singh, G.

AU - Kudo, T.

AU - Garrel, V.

AU - Newman, K.

AU - Doughty, D.

AU - Lozi, J.

AU - Males, J.

AU - Minowa, Y.

AU - Hayano, Y.

AU - Takato, N.

AU - Morino, J.

AU - Kuhn, J.

AU - Serabyn, E.

AU - Norris, B.

AU - Tuthill, P.

AU - Schworer, G.

AU - Stewart, P.

AU - Close, L.

AU - Huby, E.

AU - Perrin, G.

AU - Lacour, S.

AU - Gauchet, L.

AU - Vievard, S.

AU - Murakami, N.

AU - Oshiyama, F.

AU - Baba, N.

AU - Matsuo, T.

AU - Nishikawa, J.

AU - Tamura, M.

AU - Lai, O.

AU - Marchis, F.

AU - Duchene, G.

AU - Kotani, T.

AU - Woillez, J.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of exoplanetary systems and serves as a testbed for high-contrast imaging technologies for ELTs. It is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host. Wavefront sensing and control are key to the operation of SCExAO. A partial correction of low-order modes is provided by Subaru’s facility adaptive optics system with the final correction, including high-order modes, implemented downstream by a combination of a visible pyramid wavefront sensor and a 2000-element deformable mirror. The well-corrected NIR (y-K bands) wavefronts can then be injected into any of the available coronagraphs, including but not limited to the phase-induced amplitude apodization and the vector vortex coronagraphs, both of which offer an inner working angle as low as 1λ/D. Noncommon path, low-order aberrations are sensed with a coronagraphic low-order wavefront sensor in the infrared (IR). Low noise, high frame rate NIR detectors allow for active speckle nulling and coherent differential imaging, while the HAWAII 2RG detector in the HiCIAO imager and/or the CHARIS integral field spectrograph (from mid-2016) can take deeper exposures and/or perform angular, spectral, and polarimetric differential imaging. Science in the visible is provided by two interferometric modules: VAMPIRES and FIRST, which enable subdiffraction limited imaging in the visible region with polarimetric and spectroscopic capabilities respectively. We describe the instrument in detail and present preliminary results both onsky and in the laboratory.

AB - The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a multipurpose high-contrast imaging platform designed for the discovery and detailed characterization of exoplanetary systems and serves as a testbed for high-contrast imaging technologies for ELTs. It is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host. Wavefront sensing and control are key to the operation of SCExAO. A partial correction of low-order modes is provided by Subaru’s facility adaptive optics system with the final correction, including high-order modes, implemented downstream by a combination of a visible pyramid wavefront sensor and a 2000-element deformable mirror. The well-corrected NIR (y-K bands) wavefronts can then be injected into any of the available coronagraphs, including but not limited to the phase-induced amplitude apodization and the vector vortex coronagraphs, both of which offer an inner working angle as low as 1λ/D. Noncommon path, low-order aberrations are sensed with a coronagraphic low-order wavefront sensor in the infrared (IR). Low noise, high frame rate NIR detectors allow for active speckle nulling and coherent differential imaging, while the HAWAII 2RG detector in the HiCIAO imager and/or the CHARIS integral field spectrograph (from mid-2016) can take deeper exposures and/or perform angular, spectral, and polarimetric differential imaging. Science in the visible is provided by two interferometric modules: VAMPIRES and FIRST, which enable subdiffraction limited imaging in the visible region with polarimetric and spectroscopic capabilities respectively. We describe the instrument in detail and present preliminary results both onsky and in the laboratory.

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The subaru coronagraphic extreme adaptive optics system: Enabling high-contrast imaging on solar-system scales

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