| タイトル | The Visible Nulling Coronagraph--Architecture Definition and Technology Development |
| 著者（英） | Wallace, J. Kent; Lane, Benjamin F.; Shao, Michael; Schmidtlin, Edouard; Aguayo, Francisco; Mennesson, Bertrand; Levine, B. Martin; Liu, Duncan T.; Fregoso, S. Felipe; Tuttle, Carl; Green, Joseph J.; Serabyn, Eugene; Samuele, Rocco |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2005-10-03 |
| 言語 | eng |
| 内容記述 | This paper describes the advantages of visible direct detection and spectroscopy of Earth-like extrasolar planets using a nulling coronagraph instrument behind a moderately sized single aperture space telescope. Our concept synthesizes a nulling interferometer by shearing the telescope pupil, with the resultant producing a deep null. We describe nulling configurations that also include methods to mitigate stellar leakage, such as spatial filtering by a coherent array of single mode fibers, and post-starlight suppression wavefront sensing and control. With diffraction limited telescope optics and similar quality components in the optical train (lambda/20), suppression of the starlight to 1e-10 is readily achievable. We describe key features of the architecture and analysis, present latest results of laboratory measurements demonstrating achievable null depth and component development, and discuss future key technical milestones. |
| NASA分類 | Instrumentation and Photography |
| 権利 | Copyright |
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