Very high dynamic range optics for direct detection of extra-solar planets
Very high dynamic range optics for direct detection of extra-solar planets
批准号:
21360037
负责人:
NISHIKAWA Jun
金额:
$12.15万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011
中文摘要
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英文摘要
We studied an unbalanced nulling interferometer(UNI), adaptive optics, and coronagraphs in order to obtain a very high dynamic range optics for direct detection of extra-solar planets. Aλ/600 rms wavefront correction was made virtually when the accuracy of the adaptive optics wasλ/100 rms thanks to the effect of the UNI, and a noise level of the focal image of the coronagraph was suppressed by more than one order of magnitude. An eight-octant phase mask showed a contrast of 2E-8 with a bandwidth of 10%. A four-quadrant phase mask was shown to function as a stable UNI.
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DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[田村元秀, 西川淳, オリビエギヨン, 小久保英一郎, 芝井広, 深川美里, 村上浩, 中川貴雄, 片坐宏一, 塩谷圭吾, 馬場直志, 村上尚史, 他, JTPFワーキンググループ]
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DOI:
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发表时间:
2009
期刊:
影响因子:
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High Contrast Imaging Testbed(HCIT)を用いた8分割フォトニック結晶マスクコロナグラフの実証実験
使用高对比度成像测试台(HCIT)进行8段光子晶体掩模日冕仪的演示实验
DOI:
--
发表时间:
2011
期刊:
影响因子:
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作者:
[村上尚史, 西川淳, W. A. Traub, D. Mawet, D. C. Moody, B. D. Kern, J. T. Trauger, E. Serabyn, 田村元秀, 馬場直志, 村上浩]
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村上浩
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DOI:
--
发表时间:
2011
期刊:
影响因子:
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[西川淳, 田村元秀, 周藤浩士, 西山正吾, 森野潤一, 神戸栄治, 泉浦秀行, 水野陽介, 井上真嘉, 柏木謙, 黒川隆志, 權靜美, 末永拓也, IRDチーム]
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Taking the vector vortex coronagraph to the next level for ground-and space-based exoplanet imaging instruments : review of technology developments in the USA, Japan, and Europe(Invited paper)
将矢量涡旋日冕仪提升到地基和空基系外行星成像仪器的新水平:美国、日本和欧洲技术发展回顾(特邀论文)
DOI:
10.1117/12.896059
发表时间:
2011
期刊:
Proc. of the Society of Photo-Optical Instrumentation Engineers
影响因子:
--
作者:
[D. Mawet, et al.(43人中28番目にJ. Nishikawa, 36番目にM. Tamura)]
通讯作者:
36番目にM. Tamura)
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