Design and experimental test of an optical vortex coronagraph
Using an optical vortex coronagraph （OVC） is one of the most promising techniques for di- rectly imaging exoplanets because of its small inner working angle and high throughput. This paper presents the design and laboratory demonstration performance of an OVC based on liquid crystal polymers （LCPs）...
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| Veröffentlicht in: | Research in astronomy and astrophysics 2017-05, Vol.17 (6), p.101-106 |
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| container_title | Research in astronomy and astrophysics |
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| creator | Liu, Cheng-Chao Ren, De-Qing Zhu, Yong-Tian Dou, Jiang-Pei |
| description | Using an optical vortex coronagraph （OVC） is one of the most promising techniques for di- rectly imaging exoplanets because of its small inner working angle and high throughput. This paper presents the design and laboratory demonstration performance of an OVC based on liquid crystal polymers （LCPs） at 633 nm and 1520 nm. The OVC can deliver good performance in laboratory tests and achieve a contrast of 10-6 at an angular distance of 3A/D, which can be implemented for imaging young giant exoplanets in combination with extreme adaptive optics. |
| doi_str_mv | 10.1088/1674-4527/17/6/60 |
| format | Article |
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This paper presents the design and laboratory demonstration performance of an OVC based on liquid crystal polymers （LCPs） at 633 nm and 1520 nm. 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| identifier | ISSN: 1674-4527 |
| ispartof | Research in astronomy and astrophysics, 2017-05, Vol.17 (6), p.101-106 |
| issn | 1674-4527 2397-6209 |
| language | eng |
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| source | IOP Publishing Journals; Alma/SFX Local Collection |
| subjects | Adaptive optics Coronagraphs Extrasolar planets instrumentation: coronagraph Laboratories Laboratory tests Liquid crystal polymers Liquid crystals methods: laboratory Optics Polymers techniques: optical vortex Vortices |
| title | Design and experimental test of an optical vortex coronagraph |
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