Development of nulling interferometric coronagraph for segmented mirror telescopes

• Project/Area Number: 21340041
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Hokkaido University
• Principal Investigator: BABA Naoshi 北海道大学, 大学院・工学研究院, 教授 (70143261)
• Co-Investigator(Renkei-kenkyūsha): MIURA Noriaki 北見工業大学, 工学部, 教授 (30209720) ; TAMURA Motohide 国立天文台, 光赤外研究部, 准教授 (00260018)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000); Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2010: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2009: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
• Keywords: 光学赤外線天文学 / 大型望遠鏡 / 太陽系外惑星 / 観測装置 / ステラコロナグラフ / モザイク望遠鏡 / ナル干渉 / シアリング干渉 / TMT / フレネルロム

Research Abstract

We developed an instrument for observing directly extra-solar planets with segmented-mirror telescopes. It is desirable to extinct starlight for observing directly extra-solar planets. In order to achieve nulling and lateral shearing simultaneously for starlight we proposed use of a pair of two Fresnel rohmbs with different sizes in the Mach-Zhender interferometer. We showed the experimental verification of our proposed method.

Research Products

• [Journal Article] Lateral shearing with a pair of double Fresnel rhombs for nulling interferometry (2011)
  • Author(s): N. Baba, K. Kobayashi, Y. Kogoma, and N. Murakami
  • Journal Title: Opt. Lett Volume: 36 Pages: 3611-3613
  • Peer Reviewed
• [Journal Article] Lateral shearing with a pair of double Fresnel rhombs for nulling interferometry (2011)
  • Author(s): N.Baba, K.Kobayashi, Y.Kogoma, N.Murakami
  • Journal Title: Opics Letters Volume: 36 Pages: 3611-3613
  • Peer Reviewed
• [Journal Article] Tomographic implementation of astronomical speckle imaging from bispectra (2011)
  • Author(s): S.Kuwamura, Y.Yoshinoya, N.Miura, F.Tsumuraya, M.Sakamoto, N.Baba
  • Journal Title: Optical Review Volume: 18 Pages: 19-26
  • NAID: 10027783920
  • Peer Reviewed
• [Journal Article] Common-path lateral-shearing nulling interferometry with a Savart plate for exoplanet detection (2010)
  • Author(s): N. Murakami and N. Baba
  • Journal Title: Opt. Lett Volume: 35 Pages: 3003-3005
  • Peer Reviewed
• [Journal Article] Polarization interferometric nulling coronagraph for high-contrast imaging (2010)
  • Author(s): N. Murakami, K. Yokochi, J. Nishikawa, M. Tamura, T. Kurokawa, M. Takeda, and N. Baba
  • Journal Title: Appl. Opt Volume: 49
  • Peer Reviewed
• [Journal Article] Spectral reconstruction method for exoplanets (2010)
  • Author(s): N. Baba, N. Zubko, H. Shibuya, and N. Murakami
  • Journal Title: J. Modern Optics Volume: 57 Pages: 1803-1807
  • Peer Reviewed
• [Journal Article] Achromatic eight-octant phase-mask coronagraph using photonic crystal (2010)
  • Author(s): N.Murakami
  • Journal Title: Astrophysical Journal Volume: 714 Pages: 772-777
  • Peer Reviewed
• [Journal Article] Common-path lateral-shearing nulling interferometry with a Savart plate for exoplanet detection (2010)
  • Author(s): N.Murakami
  • Journal Title: Optics Letters Volume: 35 Pages: 3003-3005
  • Peer Reviewed
• [Journal Article] Spectral reconstruction method for exoplanets (2010)
  • Author(s): N.Baba
  • Journal Title: Journal of Modern Optics Volume: 57 Pages: 1803-1807
  • Peer Reviewed
• [Journal Article] Solar adaptive optics system using an electromagnetic deformable mirror (2009)
  • Author(s): N. Miura, Y. Noto, S. Kato, F. Yokoyama, S. Kuwamura, N. Baba, Y. Hanaoka, S. Nagata, S. Ueno, R. Kitai, K. Ichimoto, and H. Takami
  • Journal Title: Optical Review Volume: 16 Pages: 558-561
  • NAID: 10025868712
  • Peer Reviewed
• [Journal Article] Solar adaptive optics system using an electromagnetic deformable mirror (2009)
  • Author(s): N.Miura
  • Journal Title: Optical Review 16 Pages: 558-561
  • NAID: 10025868712
  • Peer Reviewed
• [Journal Article] Method to reconstruct exoplanetary spectrum (2009)
  • Author(s): N.Zubko
  • Journal Title: Optics Letters 34 Pages: 2432-2434
  • Peer Reviewed
• [Presentation] 8分割位相マスクコロナグラフを用いた角度差分撮像モードの検討 (2012)
  • Author(s): 押山史佳, 村上尚史, 馬場直志, 田村元秀
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 龍谷大学、(京都)
  • Year and Date: 2012-03-19
• [Presentation] Second-Earth Imager for TMT (SETI):装置概要と鍵となるテクノロジーについて (2011)
  • Author(s): 小谷隆行、松尾太郎、村上尚史、馬場直志、田村元秀
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 鹿児島大学、(鹿児島)
  • Year and Date: 2011-09-20
• [Presentation] 太陽補償光学系KIT-AOの開発:装置開発状況(4) (2011)
  • Author(s): 三浦則明、宮崎順一、桑村進、馬場直志、花岡庸一郎、高見秀樹、上野悟、仲谷善一、永田伸一、北井礼三郎、一本潔
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 鹿児島大学、(鹿児島)
  • Year and Date: 2011-09-19
• [Presentation] ダブルフレネルロムによるシェアリング・ナル干渉計の検証実験 (2011)
  • Author(s): 小後摩佑介
  • Organizer: 日本天文学会2011年春季年会
  • Place of Presentation: 筑波大学で開催予定であったが東日本大震災のため開催されず。学会は成立。予稿集のV85aで公表済
  • Year and Date: 2011-03-19
• [Presentation] 太陽補償光学系KIT-AOの開発:装置開発状況(4) (2011)
  • Author(s): 三浦則明、宮崎順一、桑村進、馬場直志、花岡庸一郎、高見秀樹、上野悟、仲谷善一、永田伸一、北井礼三郎、一本潔
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 鹿児島大学/鹿児島
• [Presentation] ダブルフレネルロムによるシェアリング・ナル干渉計の検証実験 (2011)
  • Author(s): 小後摩佑介,村上尚史,馬場直志
  • Organizer: 日本天文学会2011年春季年会V85a
  • Place of Presentation: 筑波大学/つくば、東日本大震災のため開催中止なるも学会成立。予稿集有り
• [Presentation] Nulling interferometry for lateral shearing by use of double Fresnel rhombs (2010)
  • Author(s): Naoshi Baba, Keita Kobayashi, and Naoshi Murakami
  • Organizer: SPIE Astronomical Instrumentation
  • Place of Presentation: San Diego, USA
  • Year and Date: 2010-06-29
• [Presentation] Nulling interferometry for lateral shearing by use of double Fresnel rhombs (2010)
  • Author(s): N.Baba
  • Organizer: SPIE Astronomical Instrumentation
  • Place of Presentation: Town and Country Resort & Con vention Center, San Diego, USA
  • Year and Date: 2010-06-29
• [Presentation] シェアリング・ナル干渉ステラコロナグラフの特性 (2010)
  • Author(s): 小林渓太、馬場直志、村上尚史、小後摩佑介
  • Organizer: 第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北大/札幌
  • Year and Date: 2010-01-08
• [Presentation] シェアリング・ナル干渉ステラコロナグラフの特性 (2010)
  • Author(s): 小林渓太
  • Organizer: 第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-01-08
• [Presentation] セグメント型望遠鏡用シェアリング・ナル干渉ステラコロナグラフの検討 (2009)
  • Author(s): 小林渓太
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 山口大学(山口市)
  • Year and Date: 2009-09-15
• [Presentation] セグメント型望遠鏡用シェアリング・ナル干渉ステラコロナグラフの検討 (2009)
  • Author(s): 小林渓太、馬場直志、小後摩佑介、村上尚史
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 山口大/山口