High-contrast imager for Complex Aperture Telescopes (HiCAT): 1. Testbed design
Mamadou N'Diaye, Elodie Choquet, Laurent Pueyo, Erin Elliot, Marshall D. Perrin, J. Kent Wallace, Tyler Groff, Alexis Carlotti, Dimitri Mawet, Matt Sheckells, S… 展开作者
Mamadou N'Diaye, Elodie Choquet, Laurent Pueyo, Erin Elliot, Marshall D. Perrin, J. Kent Wallace, Tyler Groff, Alexis Carlotti, Dimitri Mawet, Matt Sheckells, Stuart Shaklan, Bruce Macintosh, N. Jeremy Kasdin, Rémi Soummer
备注：
Proc. of the SPIE 8864, 10 pages, 3 figures, Techniques and Instrumentation for Detection of Exoplanets VI
发表信息：
Proceedings of the SPIE, Volume 8864, id. 88641K 10 pp. (2013)
Searching for nearby habitable worlds with direct imaging and spectroscopy will require a telescope large enough to provide angular resolution and sensitivity to planets around a significant sample of stars. Segmented telescopes are a compelling option to obtain such large apertures. However, these telescope designs have a complex geometry (central obstruction, support structures, segmentation) that makes high-contrast imaging more challenging. We are developing a new high-contrast imaging testbed at STScI to provide an integrated solution for wavefront control and starlight suppression on complex aperture geometries. We present our approach for the testbed optical design, which defines the surface requirements for each mirror to minimize the amplitude-induced errors from the propagation of out-of-pupil surfaces. Our approach guarantees that the testbed will not be limited by these Fresnel propagation effects, but only by the aperture geometry. This approach involves iterations between classical ray-tracing optical design optimization, and end-to-end Fresnel propagation with wavefront control (e.g. Electric Field Conjugation / Stroke Minimization). The construction of the testbed is planned to start in late Fall 2013.
Impact of segmented deformable mirrors on high-contrast testbeds for exoplanet imaging with future large space telescopes: contrast stability assessment on the HiCAT bench
Université Côte d’Azur（蔚蓝海岸大学）；Observatoire de la Côte d’Azur（蔚蓝海岸天文台）；CNRS（法国国家科学研究中心）；Laboratoire Lagrange（拉格朗日实验室）；Space Telescope Science Institute（太空望远镜科学研究所）；Max Planck Institute for Astronomy（马克斯·普朗克天文学研究所）；University of California, Santa Cruz（加州大学圣克鲁兹分校）；LIRA, Observatoire de Paris（巴黎天文台LIRA）；Thales Alenia Space（泰雷兹阿莱尼亚太空公司）；NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）；Johns Hopkins University（约翰斯·霍普金斯大学）；Jet Propulsion Laboratory, California Institute of Technology（加州理工学院喷气推进实验室）；California Institute of Technology（加州理工学院）
High-contrast imager for complex aperture telescopes (HiCAT): 11. System-level demonstration of the Apodized Pupil Lyot Coronagraph with a segmented aperture in air
Calibration of MEMS DM actuator gains using a Zernike wavefront sensor on the HiCAT testbed and implications for Habitable Worlds Observatory operations
Space Telescope Science Institute（太空望远镜科学研究所）；Max Planck Institute for Astronomy（马克斯·普朗克天文学研究所）；Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange（蔚蓝海岸大学、蔚蓝海岸天文台、法国国家科学研究中心、拉格朗日实验室）
High-contrast imager for complex aperture telescopes (HiCAT): 8. Dark zone demonstration with simultaneous closed-loop low-order wavefront sensing and control
Mid-order wavefront control for exoplanet imaging: preliminary characterization of the segmented deformable mirror and Zernike wavefront sensor on HiCAT
CATKit2-HCI: a collaborative framework for advancing high-contrast coronagraph testbeds
Space Telescope Science Institute（太空望远镜科学研究所）；Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange（蔚蓝海岸大学、蔚蓝海岸天文台、法国国家科学研究中心、拉格朗日实验室）；LIRA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CY Cergy Paris Université, CNRS（拉依尔实验室、巴黎天文台、巴黎文理研究大学、索邦大学、巴黎西岱大学、塞吉-蓬图瓦兹大学、法国国家科学研究中心）；NOVA/Leiden University（荷兰皇家天文台/莱顿大学）；Max Planck Institute for Astronomy（马克斯·普朗克天体物理学研究所）；Aix Marseille Université, CNRS, CNES, LAM（艾克斯-马赛大学、法国国家科学研究中心、法国国家空间研究中心、普朗克天体物理实验室）；California Institute of Technology（加州理工学院）；Department of Astronomy and Astrophysics, University of California, Santa Cruz（加利福尼亚大学圣克鲁兹分校天文学与天体物理学系）；NASA Goddard Space Flight Center（美国宇航局戈达德太空飞行中心）；Jet Propulsion Laboratory, California Institute of Technology（喷气推进实验室，加州理工学院）
Modal estimation of high-order wavefront drifts on coronagraphic testbeds for high-contrast direct imaging of exoplanets
Massachusetts Institute of Technology（麻省理工学院）；California Institute of Technology（加州理工学院）；Jet Propulsion Laboratory（喷气推进实验室）；Rensselaer Polytechnic Institute（伦斯勒理工学院）；Space Telescope Science Institute（太空望远镜科学研究所）；University of California, Santa Cruz（加州大学圣克鲁兹分校）；LESIA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CNRS（巴黎天文台LESIA，PSL大学，索邦大学，巴黎西岱大学，法国国家科学研究中心）；Lowell Center for Space Science and Technology, University of Massachusetts（马萨诸塞大学洛厄尔空间科学与技术中心）；The University of Alabama in Huntsville（阿拉巴马大学亨茨维尔分校）；Princeton University（普林斯顿大学）
NEXT: The Netherlands EXoplanet Testbed I. Goals and opto-mechanical design
NOVA, Netherlands Research School for Astronomy（荷兰天文研究学校）；Leiden Observatory, Leiden University（莱顿大学莱顿天文台）；Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）
