Development of a contact grating device for intense terahertz pulse generation

• Project/Area Number: 26790073
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: The University of Tokyo (2016); Japan Atomic Energy Agency (2014-2015)
• Principal Investigator: Yoshida Fumiko 東京大学, 大学院工学系研究科(工学部), 学術支援専門職員 (30450422)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: テラヘルツ波 / 透過型回折格子 / 高屈折率材料薄膜 / ファブリーペロー共振器 / 多層膜

Outline of Final Research Achievements

We developed a new contact grating device for intense terahertz (THz) pulse generation by optical rectification. We have developed two kinds of device. One was made from polycrystalline rutile TiO2 thin film in the grating region and an amorphous SiO2 layer deposited on a Mg-doped LiNbO3 crystal. The another one was designed using an idea of the principle of the Fabry-Perot resonator. We have succeeded in THz pulse generation with these contact grating devices, which is the first time of THz pulse generation with a contact grating setup.

Research Products

• [Journal Article] THz pulse generation using a contact grating device composed of TiO2/SiO2 thin films on LiNbO3 crystal (2016)
  • Author(s): Fumiko Yoshida, Keisuke Nagashima, Masaaki Tsubouchi, Momoko Maruyama, and Yoshihiro Ochi
  • Journal Title: Journal of Applied Physics Volume: 120 Issue: 18
  • DOI: 10.1063/1.4967533
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High-efficiency contact grating fabricated on the basis of a Fabry-Perot type resonator for terahertz wave generation (2016)
  • Author(s): Fumiko Yoshida, Keisuke Nagashima, Masaaki Tsubouichi, Yoshihiro Ochi, Momoko Maruyama, and Akira Sugiyama
  • Journal Title: Japanese Journal of Applied Physics Volume: 55
  • NAID: 210000145883
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Yb:YAG thin-disk chirped pulse amplification laser system for intense terahertz pulse generation (2015)
  • Author(s): Yoshihiro Ochi, Keisuke Nagashima, Momoko Maruyama, Masaaki Tsubouchi, Fumiko Yoshida, Nanase Kohno, Michiaki Mori, and Akira Sugiyama
  • Journal Title: OPTICS EXPRESS Volume: 23 Pages: 15057-15064
• [Journal Article] Contact grating device with Fabry-Perot resonator for effective terahertz light generation (2014)
  • Author(s): Masaaki Tsubouchi, Keisuke Nagashima, Fumiko Yoshida, Yoshihiro Ochi, and Momoko Maruyama
  • Journal Title: OPTICS LETTERS Volume: 39 Pages: 5439-5442
  • Peer Reviewed
• [Presentation] Contact grating device using a Fabry-Perot type resonator for terahertz wave generation (2015)
  • Author(s): Fumiko Yoshida, Keisuke Nagashima, Masaaki Tsubouchi, Yoshihiro Ochi, and Momoko Maruyama
  • Organizer: International Symposium on Frontiers in THz Technology (FTT 2015)
  • Place of Presentation: ActCity, Hamamatsu, Shizuoka, Japan
  • Year and Date: 2015-08-30
  • Int'l Joint Research
• [Presentation] Yb:YAG thin-disk CPA laser system for intense THz pulse generation at 1 kHz repetition rate (2015)
  • Author(s): Y. Ochi, K. Nagashima, M. Maruyama, M. Tsubouchi, F. Yoshida, N. Kono, and A. Sugiyama
  • Organizer: Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
  • Place of Presentation: Busan, Korea
  • Year and Date: 2015-08-24
  • Int'l Joint Research
• [Presentation] Contact grating device with Fabry-Perot resonator for effective THz light generation (2015)
  • Author(s): M. Tsubouchi, K. Nagashima, F. Yoshida, Y. Ochi, M. Maruyama
  • Organizer: European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO/Europe-EQEC 2015)
  • Place of Presentation: Munich, Germany
  • Year and Date: 2015-06-21
  • Int'l Joint Research
• [Patent(Industrial Property Rights)] 光学素子およびテラヘルツ波発生光学デバイス (2015)
  • Inventor(s): 永島圭介，坪内雅明，越智義浩，圓山桃子，吉田芙美子
  • Industrial Property Rights Holder: 永島圭介，坪内雅明，越智義浩，圓山桃子，吉田芙美子
  • Industrial Property Rights Type: 特許
  • Filing Date: 2015-02-04