High extinction optics with double wavefront sensing and control for direct detection of Earth-like exoplanets

• Project/Area Number: 24360029
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: NISHIKAWA Jun 国立天文台, 光赤外研究部, 助教 (70280568)
• Co-Investigator(Kenkyū-buntansha): KUROKAWA Takashi 東京農工大学, 工学研究院, 名誉教授 (40302913)
• Co-Investigator(Renkei-kenkyūsha): MURAKAMI Naoshi 北海道大学, 工学研究科, 助教 (80450188) ; TAMURA Motohide 東京大学, 理学系研究科, 教授 (00260018)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000); Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000); Fiscal Year 2012: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
• Keywords: 応用光学・量子光工学 / 超精密計測 / 波面センシング / 補償光学 / ナル干渉計 / 惑星探査 / 系外惑星 / 光学赤外線天文学 / ナリング干渉計

Outline of Final Research Achievements

This study aimed at development of high-precision wavefront measurement and control method in the high-contrast optics for direct observations of exoplanets, which consisted of the telescope, the deformable mirror 1, the pre-coronagraph, the deformable mirror 2, the main coronagraph, and the final focal-plane detector. When the mask of the main coronagraph is ejected, the wavefront aberrations of the telescope and the pre-coronagraph can be compensated using the deformable mirror1, and when the mask is inserted, the aberrations of the main coronagraph can be corrected using the deformable mirrors by the dark-hole control with the focal plane detector. The contrast will be improved along the two steps by the architecture suitable for a space telescope with a small number of detectors. We also developed the speckle area nulling (SAN) method which can extinguish wide area quickly without optical model.

Research Products

• [Journal Article] A coronagraph system with unbalanced nulling interferometer : progress of optics and control method (2014)
  • Author(s): Nishikawa, Jun, Oya, Masahito, Horie, Masaaki, Sato, Kazuma, Fukase, Masao, Murakami, Naoshi, Kotani, Takayuki, Kumagai, Shiomi, Tamura, Motohide, Tanaka, Yosuke, Kurokawa, Takashi
  • Journal Title: Proceedings of the SPIE Volume: 9143 Pages: 91433A-91433A
  • DOI: 10.1117/12.2055636
  • Peer Reviewed
• [Journal Article] Adaptive optics operation with focal wavefront sensor in a coronagraph for direct observation of exoplanets (2014)
  • Author(s): Oya, Masahito, Nishikawa, Jun, Horie, Masaaki, Sato, Kazuma, Fukase, Masao, Murakami, Naoshi, Kotani, Takayuki, Kumagai, Shiomi, Tamura, Motohide, Tanaka, Yosuke, Kurokawa, Takashi
  • Journal Title: Proceedings of the SPIE Volume: 9143 Pages: 91433B-91433B
  • DOI: 10.1117/12.2055670
  • Peer Reviewed
• [Journal Article] Recent progress on phase-mask coronagraphy based on photonic-crystal technology (2014)
  • Author(s): Murakami, Naoshi, Nishikawa, Jun, Tamura, Motohide, Serabyn, Eugene, Traub, Wesley A., Liewer, Kurt M., Moody, Dwight C., Trauger, John T., Guyon, Olivier, Martinache, Frantz, and 8 coauthors
  • Journal Title: Proceedings of the SPIE Volume: 9143 Pages: 914334-914334
  • DOI: 10.1117/12.2054790
  • Peer Reviewed
• [Journal Article] Recovery of the Candidate Protoplanet HD 100546 b with Gemini/NICI and Detection of Additional (Planet-induced?) Disk Structure at Small Separations (2014)
  • Author(s): Currie, Thayne; Muto, Takayuki; Kudo, Tomoyuki; Honda, Mitsuhiko; Brandt, Timothy D.; Grady, Carol; Fukagawa, Misato; Burrows, Adam; Janson, Markus; Kuzuhara, Masayuki; McElwain, Michael W.; Follette, Katherine; Hashimoto, Jun; Henning, Thomas; Kandori, Ryo; Kusakabe, Nobuhiko; Kwon, Jungmi;...; Tamura, Motohide
  • Journal Title: The Astrophysical Journal Letters Volume: 796 Issue: 2 Pages: L30-L30
  • DOI: 10.1088/2041-8205/796/2/l30
  • Peer Reviewed / Open Access
• [Journal Article] Central-Obscuration Removal Plates for Focal-Plane Phase-Mask Coronagraphs with a Centrally-Obscured Telescope (2014)
  • Author(s): Oshiyama, F., Murakami, N., Guyon, O., Martinache, F., Baba, N., Matsuo, T., Nishikawa, J., Tamura, M.
  • Journal Title: Publications of the Astronomical Society of the Pacific Volume: 126 Issue: 937 Pages: 270-279
  • DOI: 10.1086/675807
  • NAID: 120005553688
  • Peer Reviewed
• [Journal Article] Unbalanced nulling interferometer and precise wavefront control (2013)
  • Author(s): J. Nishikawa and N. Murakami
  • Journal Title: Optical Review (Invited Review Paper) Volume: 20 Issue: 6 Pages: 453-462
  • DOI: 10.1007/s10043-013-0078-2
  • Peer Reviewed
• [Journal Article] Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-Like Star GJ 504 (2013)
  • Author(s): M. Kuzuhara, M. Tamura, T. Kudo, M. Janson, R. Kandori, T. D. Brandt, C. Thalmann, D. Spiegel, B. Biller, J. Carson, Y. Hori, R. Suzuki, A. Burrows, T. Henning, E. L. Turner, M. W. McElwain, A. Moro-Martin, T. Suenaga, Y. H. Takahashi, et al.
  • Journal Title: The Astrophysical Journal Volume: 774 Issue: 1 Pages: 11-28
  • DOI: 10.1088/0004-637x/774/1/11
  • Peer Reviewed
• [Journal Article] Direct Imaging Search for Extrasolar Planets in the Pleiades (2013)
  • Author(s): Yamamoto, K., Matsuo, T., Shibai, H., et al. (No. 34 of 56 authors)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 65 Issue: 4 Pages: 90-90
  • DOI: 10.1093/pasj/65.4.90
  • Peer Reviewed
• [Journal Article] A coronagraph system with unbalanced nulling interferometer : progress of dynamic range (2012)
  • Author(s): Nishikawa, J., Yokochi, K., Murakami, N., Abe, L., Kotani, T., Tamura, M., Kurokawa, T., Tavrov, A.V., Takeda, M., Murakami, H.
  • Journal Title: Proc. of SPIE Volume: 8422 Pages: 84425D-84425D
  • DOI: 10.1117/12.925792
  • Peer Reviewed
• [Journal Article] Wavefront correction inside unbalanced nulling interferometer (2012)
  • Author(s): Horie, M., Nishikawa, J., Oya, M., Waki, R., Kumagai, S., Tamura, M., Kurokawa, T., Murakami, N., Murakami, H., Abe, L.
  • Journal Title: Proc. of SPIE Volume: 8445 Pages: 84452E-84452E
  • DOI: 10.1117/12.926737
  • Peer Reviewed
• [Journal Article] Wavefront correction inside unbalanced nulling interferometer (2012)
  • Author(s): Kobayashi, T., Nishikawa, J., Tanaka, Y., Kurokawa, T., Kashiwagi, K., Tamura, M., Murakami, N., Baba, N., Hashimoto, N.
  • Journal Title: Proc. of SPIE Volume: 8445 Pages: 84213D-84213D-4
  • DOI: 10.1117/12.975179
  • Peer Reviewed
• [Journal Article] Adaptive optics operation with two wavefront sensors in a coronagraph for exoplanet observations (2012)
  • Author(s): Oya, M., Nishikawa, J., Horie, M., Murakami, N., Kotani, T., Abe, L., Kumagai, S., Tamura, M., Kurokawa, T., Murakami, H.
  • Journal Title: Proc. ofSPIE Volume: 8442 Pages: 844255-844255
  • DOI: 10.1117/12.925858
  • Peer Reviewed
• [Journal Article] Coronagraph focal-plane phase masks based on photonic crystal technology: recent progress and observational strategy (2012)
  • Author(s): N. Murakami et al.
  • Journal Title: Proc. SPIE Volume: 8442 Pages: 844205-844205
  • DOI: 10.1117/12.925613
  • Peer Reviewed
• [Presentation] 超高コントラスト系外惑星直接撮像のための非対称ナル干渉法とダークホール制御 (2015)
  • Author(s): 西川淳, 大矢正人，堀江正明，佐藤克磨，深瀬雅央，村上尚史，小谷隆行，熊谷紫麻見，田村元秀，田中洋介，黒川隆志
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] 系外惑星直接観測のためのSpeckle Area Nulling を用いたダークホール制御 (2015)
  • Author(s): 大矢正人，西川淳，堀江正明，佐藤克磨，深瀬雅央，村上尚史，小谷隆行，熊谷紫麻見，田村元秀，田中洋介，黒川隆志
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] 瞳再配置型位相マスクコロナグラフの提案 (2015)
  • Author(s): 村上尚史, 赤岩夏海, 馬場直志, 西川淳, 田村元秀
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] WFIRST/AFTA Coronagraph（WACO） (2015)
  • Author(s): 田村元秀，村上尚史，馬場直志，西川淳，小谷隆行，成田憲保，塩谷圭吾，
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] 系外惑星直接観測のための高コントラスト撮像光学系 (2015)
  • Author(s): 西川 淳
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 東海大学湘南キャンパス(神奈川県平塚市)
  • Year and Date: 2015-03-11 – 2015-03-14
  • Invited
• [Presentation] 系外惑星直接観測のためのダークホールアルゴリズムによる補償光学制御 (2014)
  • Author(s): 大矢正人，西川淳，堀江正明，佐藤克磨，深瀬雅央，村上尚史，小谷隆行，熊谷紫麻見，田村元秀，田中洋介，黒川隆志
  • Organizer: Optics & Photonics Japan 2014
  • Place of Presentation: 筑波大学東京キャンパス文京校舎(東京都文京区)
  • Year and Date: 2014-11-05 – 2014-11-07
• [Presentation] Dark-hole control without modeling and enhanced extinction by pre-DM and pre-coronagraph (2014)
  • Author(s): J. Nishikawa, N. Murakami, M. Oya, K. Sato, M. Horie, T. Kurokawa, Y. Tanaka, M. Tamura, T. Kotani, S. Kumagai
  • Organizer: Wide-field InfraRed Surveys: Science and Techniques
  • Place of Presentation: Pasadena Hilton, (Pasadena, USA)
  • Year and Date: 2014-10-17 – 2014-10-20
• [Presentation] 高コントラスト撮像光学系における焦点面波面センシングによるスペックルノイズ低減 (2014)
  • Author(s): 佐藤克磨，西川 淳，大矢正人, 堀江正明, 田中洋介，熊谷 紫麻見，黒川隆志，村上尚史
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学、神奈川県相模原市
• [Presentation] 系外惑星直接観測のための焦点面波面センシングを用いた補償光学制御法(2) (2014)
  • Author(s): 大矢正人，西川淳，堀江正明，佐藤克磨，深瀬雅央，村上尚史，小谷隆行，熊谷紫麻見，田村元秀，田中洋介，黒川隆志
  • Organizer: 日本天文学会2014年春季年会
  • Place of Presentation: 国際基督教大学、東京都三鷹市
• [Presentation] フォトニック結晶技術による焦点面マスクコロナグラフの開発状況 (2014)
  • Author(s): 村上尚史, 西川淳, 田村元秀, Eugene Serabyn, Wesley A. Traub, Kurt M. Liewer, Dwight C. Moody, John T. Trauger, 押山史佳, 庄子隼斗, 坂本盛嗣, 岡和彦, 馬場直志
  • Organizer: 日本天文学会2014年春季年会
  • Place of Presentation: 国際基督教大学、東京都三鷹市
• [Presentation] すばる望遠鏡搭載に向けた8 分割位相マスクコロナグラフの開発(III) (2014)
  • Author(s): 押山史佳, 村上尚史, 平翼, 馬場直志, Olivier Guyon, Nemanja Jovanovic, Garima Singh, Frantz Martinache, 西川淳, 田村元秀, 松尾太郎
  • Organizer: 日本天文学会2014年春季年会
  • Place of Presentation: 国際基督教大学、東京都三鷹市
• [Presentation] 系外惑星の直接撮像を目指した高コントラスト極限補償光学 (2014)
  • Author(s): 村上尚史，西川淳，田村元秀，押山史佳，Eugene Serabyn，Wesley A. Traub，Kurt M. Liewer，Dwight C. Moody，John T. Trauger，庄子隼斗，坂本盛嗣，岡和彦，馬場直志
  • Organizer: 若手研究者による分野間連携研究プロジェクトシンポジウム すばる望遠鏡から顕微鏡へ：高解像・高感度観察を可能にする次世代補償光学系に向けて
  • Place of Presentation: 国立天文台、東京都三鷹市
  • Invited
• [Presentation] 高コントラスト撮像光学系による焦点面波面センシングによるスペックルノイズ低減 (2013)
  • Author(s): 佐藤克磨, 西川淳, 大矢正人, 堀江正明, 田中洋介, 熊谷紫麻見, 黒川隆志
  • Organizer: 第60回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川工業大学(神奈川県)
  • Year and Date: 2013-03-27
• [Presentation] 系外惑星直接観測のための高コントラスト干渉光学系 (2013)
  • Author(s): 西川淳
  • Organizer: 電子情報通信学会総合大会
  • Place of Presentation: 岐阜大学(岐阜県)(依頼講演)
  • Year and Date: 2013-03-22
• [Presentation] 系外惑星直接観測のための焦点面波面センシングを併用したコロナグラフの開発 (2013)
  • Author(s): 大矢正人, 堀江正明, 西川淳, 田村元秀, 藤井紫麻見, 村上尚史, 黒川隆志, 小谷隆行, 中川貴雄
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学(埼玉県)
  • Year and Date: 2013-03-20
• [Presentation] A coronagraph system with unbalanced nulling interferometer : upgrade of 2013 (2013)
  • Author(s): J. Nishikawa, M. Ohya, M. Horie, K. Sato, M. Fukase, N. Murakami, T. Kotani, M. Tamura, Y. Tanaka, T. Kurokawa, S. Kumagai
  • Organizer: The 5th Subaru International Conference “Exoplanets and Disks: Their Formation and Diversity II”
  • Place of Presentation: Sheraton Kona Resort & Spa at Keauhou Bay, Kona, Hawaii, USA
• [Presentation] Adaptive optics operation with a focal plane wavefront sensing in a coronagraph (2013)
  • Author(s): M. Oya, J. Nishikawa, M. Horie, K. Sato, M. Fukase, N. Murakami, T. Kotani, M. Tamura, Y. Tanaka, T. Kurokawa, S. Kumagai
  • Organizer: The 5th Subaru International Conference “Exoplanets and Disks: Their Formation and Diversity II”
  • Place of Presentation: Sheraton Kona Resort & Spa at Keauhou Bay, Kona, Hawaii, USA
• [Presentation] Speckle noise reduction by focal plane wave-front sensing in high contrast imaging optics (2013)
  • Author(s): K. Sato, J. Nishikawa, M. Ohya, M. Horie, Y. Tanaka, S. Kumagai, T. Kurokawa, N.Murakami
  • Organizer: 18th Microoptics Conference (MOC '13)
  • Place of Presentation: Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan
• [Presentation] 系外惑星直接撮像のための高コントラスト光学系の研究・初段補償光学による干渉計内部の波面補正 (2013)
  • Author(s): 堀江正明, 大矢正人, 西川淳, 田村元秀, 藤井紫麻見, 村上尚史, 黒川隆志
  • Organizer: 日本天文学会2013年秋季年会
  • Place of Presentation: 東北大学、宮城県仙台市
• [Presentation] 系外惑星直接観測のための焦点面波面センシングを用いたダークゾーンコロナグラフ (2013)
  • Author(s): 大矢正人，西川淳，堀江正明，佐藤克磨，深瀬雅央，村上尚史，小谷隆行，熊谷紫麻見，田村元秀，田中洋介，黒川隆志
  • Organizer: 日本光学会年次学術講演会 Optics & Photonics Japan 2013
  • Place of Presentation: 奈良公会堂、奈良県奈良市
• [Presentation] 系外惑星直接撮像のための高コントラスト光学系の研究：初段補償光学による干渉計内部の波面補正 (2013)
  • Author(s): 堀江正明, 大矢正人, 西川淳, 田村元秀, 藤井紫麻見, 村上尚史, 黒川隆志
  • Organizer: 応用物理学会第52回光波センシング技術研究会
  • Place of Presentation: 東京理科大学、東京都新宿区
• [Presentation] すばる望遠鏡搭載に向けた8 分割位相マスクコロナグラフの開発(II) (2013)
  • Author(s): 押山史佳, 村上尚史, 平翼, 馬場直志, Olivier Guyon,Frantz Martinache, Nemanja Jovanovic, Garima Singh, 西川淳, 田村元秀, 松尾太郎
  • Organizer: 日本天文学会2013年秋季年会
  • Place of Presentation: 東北大学、宮城県仙台市
• [Presentation] 系外惑星直接観測のための焦点面波面センシングを用いた2波面センサー法 (2012)
  • Author(s): 大矢正人, 堀江正明, 西川淳, 田村元秀, 村上尚史, 小谷隆行, Lyu Abe, 熊谷紫麻見, 黒川隆志, 村上浩
  • Organizer: 応用物理学会第50回光波センシング技術研究会
  • Place of Presentation: 東京理科大学(東京都)
  • Year and Date: 2012-12-05
• [Presentation] Unbalanced nulling interferometer with four-quadrant phase mask (2012)
  • Author(s): Kobayashi, T., Nishikawa, J., Tanaka, Y., Kurokawa, T., Kashiwagi, K., Tamura, M., Murakami, N., Baba, N., Hashimoto, N.
  • Organizer: OFS2012 22nd International Conference on Optical Fiber Sensors
  • Place of Presentation: Beijin (China)
  • Year and Date: 2012-10-14
• [Presentation] 4分割位相マスクによる非対称ナル干渉計を用いた高ダイナミックレンジ光学系 (2012)
  • Author(s): 小林拓自, 西川淳, 田中洋介, 黒川隆志, 柏木謙, 田村元秀, 村上尚志, 馬場直志, 橋本信幸
  • Organizer: 応用物理学会第49回光波センシング技術研究会
  • Place of Presentation: 東京理科大学(東京都)
  • Year and Date: 2012-06-05
• [Presentation] A coronagraph system with unbalanced nulling interferometer : progress of dynamic range (2012)
  • Author(s): Nishikawa, J., Yokochi, K., Murakami, N., Abe, L., Kotani, T., Tamura, M., Kurokawa, T., Tavrov, A.V., Takeda, M., Murakami, H.
  • Organizer: SPIE Astronomical Telescopes and Instrumentation 2012
  • Place of Presentation: Amsterdam (Netherlands)
• [Presentation] Wavefront correction inside unbalanced nulling interferometer (2012)
  • Author(s): Horie, M., Nishikawa, J., Oya, M., Waki, R., Kumagai, S., Tamura, M., Kurokawa, T., Murakami, N., Murakami, H., Abe, L.
  • Organizer: SPIE Astronomical Telescopes and Instrumentation 2012
  • Place of Presentation: Amsterdam (Netherlands)
• [Presentation] Adaptive optics operation with two wavefront sensors in a coronagraph for exoplanet observations (2012)
  • Author(s): Oya, M., Nishikawa, J., Horie, M., Murakami, N., Kotani, T., Abe, L., Kumagai, S., Tamura, M., Kurokawa, T., Murakami, H.
  • Organizer: SPIE Astronomical Telescopes and Instrumentation 2012
  • Place of Presentation: Amsterdam (Netherlands)
• [Presentation] Coronagraph focal-plane phase masks based on photonic crystal technology : recent progress and observational strategy (2012)
  • Author(s): N. Murakami, J. Nishikawa, W. A. Traub, D. Mawet, D. C. Moody, B. D. Kern, J. T. Trauger, E. Serabyn, S. Hamaguchi, E Oshiyama, M. Sakamoto, A. Ise, K. Oka, N.Baba, H.Murakami, M.Tamura
  • Organizer: SPIE Astronomical Telescopes and Instrumentation 2012
  • Place of Presentation: Amsterdam (Netherlands)