Development of novel organic materials and devices for refractive index modulation

• Project/Area Number: 16K04941
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied materials
• Research Institution: National Institute of Information and Communications Technology
• Principal Investigator: YAMADA TOSHIKI 国立研究開発法人情報通信研究機構, 未来ICT研究所フロンティア創造総合研究室, 主任研究員 (10359101)
• Research Collaborator: Kaji Takahiro
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 電気光学ポリマー / 耐熱性 / 屈折率変調 / 有機半導体 / 電気光学色素 / 電荷注入

Outline of Final Research Achievements

Recently, considerable attention has been paid to the development of refractive index modulation devices that are applicable at various wavelength regions and frequency bandwidths. Novel organic materials and devices were developed for refractive index modulations in this study. We developed electro-optic (EO) polymers that have thermal and chemical stability for uses at 1.3- or 1.5-micrometer wavelength. We tried to fabricate novel organic refractive index modulation devices due to charge injections that are applicable at near infrared light and visible light wavelength regions at MHz frequency bandwidth.

Academic Significance and Societal Importance of the Research Achievements

電気光学ポリマーはポッケルス効果（電界による屈折率変化）により、100GHz以上での超高速光変調を可能とする材料で、光通信の分野で期待されている。本研究での材料開発によって耐熱性が改善された。またMHz程度の応答周波数をもつ有機半導体への電荷注入による新規な屈折率変調に関する研究も進めた。その現象を評価するための測定系の構築を行なった。今後、有機半導体材料に屈折率変調という新しい応用を切り開くことが期待される。

Research Products

• [Journal Article] Terahertz-wave generation devices using electro-optic polymer slab waveguides and cyclo-olefin polymer clads (2018)
  • Author(s): Kaji Takahiro、Tominari Yukihiro、Yamada Toshiki、Saito Shingo、Morohashi Isao、Otomo Akira
  • Journal Title: Optics Express Volume: 26 Issue: 23 Pages: 30466-30475
  • DOI: 10.1364/oe.26.030466
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Important role of the ethylenedioxy group bound to the thienyl-di-vinylene π-conjugation unit of tricyanofuran-based donor-acceptor electro-optic chromophores (2016)
  • Author(s): Toshiki Yamada, Isao Aoki, Chiyumi Yamada, Akira Otomo
  • Journal Title: Optical Materials Express Volume: 6 Issue: 9 Pages: 3020-3035
  • DOI: 10.1364/ome.6.003020
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Photostability measurement of the organic electro-optic polymer at 1550-nm wavelength (2019)
  • Author(s): Yukihiro Tominari, Toshiki Yamada, Takahiro Kaji, Akira Otomo
  • Organizer: SPIE Photonics West 2019
  • Int'l Joint Research
• [Presentation] Terahertz-wave generation devices using electro-optic polymer slab waveguides and terahertz-wave low-loss polymer clads (2019)
  • Author(s): Takahiro Kaji, Yukihiro Tominari, Toshiki Yamada, Shingo Saito, Isao Morohashi, Akira Otomo
  • Organizer: SPIE Photonics West 2019
  • Int'l Joint Research
• [Presentation] Development of Electro-Optic Polymers and Waveguides for Optical and Terahertz Wave Communication Devices (2018)
  • Author(s): Akira Otomo, Takahiro Kaji, Toshiki Yamada
  • Organizer: 2018 MRS Spring Meeting
  • Int'l Joint Research / Invited
• [Presentation] Development and evaluation of electro-optic chromophores and polymers for applications to terahertz wave generation and detection (2018)
  • Author(s): Toshiki Yamada, Takahiro Kaji, Isao Aoki, Yoshihiro Takagi, Chiyumi Yamada, Maya Mizuno, Shingo Saito, Akira Otomo
  • Organizer: 10th International Symposium on Organic Molecular Electronics (ISOME2018)
  • Int'l Joint Research
• [Presentation] Terahertz-wave generation devices using electro-optic polymer waveguides and terahertz-wave low-loss cladding materials (2018)
  • Author(s): Takahiro Kaji, Toshiki Yamada, Yukihiro Tominari, Shingo Saito, Isao Morohashi, Akira Otomo
  • Organizer: 2018 43rd International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW THz-2018)
  • Int'l Joint Research
• [Presentation] 1550nmにおける有機EOポリマーの光安定性評価 (2018)
  • Author(s): 富成 征弘、山田 俊樹、梶 貴博、青木 勲、大友 明
  • Organizer: 第79回応用物理学会秋季学術講演会
• [Presentation] 超高速光変調器及びTHz波発生・検出デバイスへの応用に向けた有機電気光学材料開発 (2018)
  • Author(s): 山田 俊樹、梶 貴博、青木 勲、山田 千由美、水野 麻弥、大友 明
  • Organizer: 日本学術振興会情報科学用有機材料第142委員会B部会136回研究会
  • Invited
• [Presentation] ポリカーボネート系電気光学ポリマーのテラヘルツ発生・検出への応用に向けた特性評価 (2018)
  • Author(s): 山田 俊樹、青木 勲、山田 千由美、水野 麻弥、大友 明、高橋 直、山中 克浩
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] クロスリンクEOポリマー及び光導波路の光学特性と高温安定性 (2017)
  • Author(s): 大友 明、青木 勲、山田 千由美、上田理永子、山田 俊樹
  • Organizer: 2017年電子情報通信学会総合大会
  • Place of Presentation: 名城大学（愛知県名古屋市）
  • Year and Date: 2017-03-22
• [Presentation] Optical properties and thermal stability of EO polymers and waveguides cross-linked with multi-functionalized EO molecules (2017)
  • Author(s): Akira Otomo, Isao Aoki, Chiyumi Yamada, Rieko Ueda, Toshiki Yamada
  • Organizer: SPIE Photonics West 2017
  • Place of Presentation: The Moscone Center San Francisco, California, United States
  • Year and Date: 2017-01-28
  • Int'l Joint Research
• [Presentation] Development and evaluation of electro-optic polymers for applications to THz-wave generation and detection (2017)
  • Author(s): Toshik Yamada, Takahiro Kaji, Isao Aoki, Yoshihiro Takagi, Chiyumi Yamada, Maya Mizuno, Shingo Saito, Akira Otomo
  • Organizer: EMN Meeting on Terahertz 2017
  • Int'l Joint Research / Invited
• [Presentation] 2.トリシアノピロリンアクセプターとアルキルオキシ基を有するアミノベンゼンドナーからなる電気光学色素の線形・非線形光学特性 (2017)
  • Author(s): 山田 俊樹、高木 良博、青木 勲、山田 千由美、大友 明
  • Organizer: 第78回応用物理学会秋季学術講演会
• [Presentation] 超高速光変調器及びテラヘルツ波発生検出デバイスへの応用に向けた電気光学色素及びポリマー材料開発 (2017)
  • Author(s): 山田 俊樹、青木 勲、高木 良博、山田 千由美、梶 貴博、水野 麻弥、齋藤 伸吾、大友 明
  • Organizer: 第66回高分子討論会
• [Presentation] Development of electro-optic chromophores and polymers for applications to THz-wave generation and detection (2017)
  • Author(s): Toshik Yamada, Takahiro Kaji, Isao Aoki, Yoshihiro Takagi, Chiyumi Yamada, Maya Mizuno, Shingo Saito, Akira Otomo
  • Organizer: 2nd International Workshop on Photonic Applied to Electromagnetic Measurements (PEM2017)
  • Int'l Joint Research
• [Presentation] Development of electro-optic polymers with a high hyperpolarizability chromophore and its characterization technique (2016)
  • Author(s): Toshiki Yamada, Isao Aoki, Chiyumi Yamada, Akira Otomo
  • Organizer: The 16th International Discussion & Conference on Nano Interface Controlled Electronic Devices (IDC-NICE 2016)
  • Place of Presentation: Sunchon National University, Sunchon, South Korea
  • Year and Date: 2016-10-05
  • Int'l Joint Research / Invited
• [Presentation] クロスリンクEOポリマーの光学特性と高温安定性 (2016)
  • Author(s): 大友 明、青木 勲、山田 千由美、山田 俊樹
  • Organizer: 第77回応用物理学会秋季学術講演会
  • Place of Presentation: 朱鷺メッセ（新潟県新潟市）
  • Year and Date: 2016-09-13