| Project/Area Number |
25286073
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Optical engineering, Photon science
|
|---|
| Research Institution | National Astronomical Observatory of Japan |
|---|
Principal Investigator |
Kotani Takayuki 国立天文台, 太陽系外惑星探査プロジェクト室, 助教 (40554291)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
Uda Yutaka 大阪電気通信大学, 工学部, 教授 (00434803)
Kurita Mikio 京都大学, 理学系研究科, 准教授 (20419427)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
Murakami Noshi 北海道大学, 大学院工学研究院, 助教 (80450188)
Matsuo Taro 大阪大学, 大学院理学研究科, 助教 (00548464)
Tamura Motohide 東京大学, 大学院理学系研究科, 教授 (00260018)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
|
|---|
| Keywords | 系外惑星 / 瞳再配置 / 光干渉計 / 高コントラスト / 分割鏡 |
|---|
| Outline of Final Research Achievements |
We studied a novel high-contrast imaging technique, i.e. Pupil Remapping, to search for Earth-like planets and developed a segmented mirror system to realize this technique. As a segmented mirror, we fabricated small hexagonal glass mirrors with tilt by the special grinding and polishing technique. Despite its small size (2mm side-to-side distance), we successfully achieved d high surface accuracy mirror and it enables us to realize a 6-element pupil remapping system. In addition, for a larger number of a segmented system, a new concept is shown by a combination of a hexagonal glass mirror and segmented deformable mirrors.
|
