High-resolution, THz-wave real-time imaging with Si-camera based on nonlinear optical up-conversion.

• Project/Area Number: 16K17534
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: Koyama Mio 国立研究開発法人理化学研究所, 光量子工学研究領域, 特別研究員 (90757147)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 有機結晶 / 非線形光学係数 / 結晶評価 / 光計測 / テラヘルツ / イメージング

Outline of Final Research Achievements

A system for measuring the in-plane crystal quality and nonlinear coefficient of a nonlinear organic crystal 4 - dimethylamino - N’ - methyl - 4’ - stilbazolium tosylate (DAST) used for THz wave generation was established. The system achieved to 1) show the in-plain crystal quality of the DAST and find the crystal with high quality. 2) measure the ratio of nonlinear coefficients which are different value depending on crystal orientation. 3) obtain nonlinear coefficient value based on comparative method. The system reduces a preparing cost for evaluation of a crystal in the study of crystal growth.

Research Products

• [Journal Article] 非位相整合第二高調波発生による光学結晶の 品質計測と非線形係数相対評価 (2017)
  • Author(s): 小山 美緒，野竹 孝志，伊藤 弘昌，南出 泰亜
  • Journal Title: レーザー研究 Volume: 45 Pages: 773-778
  • Peer Reviewed
• [Journal Article] Quadratic nonlinear optical properties of the organic N-benzyl-2-methyl-4-nitroaniline (BNA) biaxial crystal (2017)
  • Author(s): Cyril Bernerd, Patricia Segonds, Jerome Debray, Takashi Notake, Mio Koyama, Hiroaki Minamide, Hiromasa Ito, and Benoît Boulanger
  • Journal Title: Optics Letters Volume: 43 Issue: 8 Pages: 1818-1821
  • DOI: 10.1364/ol.43.001818
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] 無機・有機非線形光学結晶の位相不整合SHGによる非線形係数相対評価 (2018)
  • Author(s): 小山 美緒、野竹孝志、伊藤弘昌、南出 泰亜
  • Organizer: 第18回「ミリ波サブミリ波受信機ワークショップ」
• [Presentation] 非位相整合SHGによる有機結晶の非線形係数の相対評価 (2017)
  • Author(s): 小山 美緒, 野竹孝志, 伊藤弘昌, 南出 泰亜
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: 神奈川県横浜市（パシフィコ横浜）
  • Year and Date: 2017-03-14
• [Presentation] 非位相整合SHGによる非線形光学結晶の面内品質計測および非線形係数相対評価装置の開発 (2017)
  • Author(s): 小山 美緒, 野竹 孝志, 伊藤 弘昌, 南出 泰亜
  • Organizer: 理研シンポジウム第五回「光量子工学」
• [Presentation] 非位相整合SHGを利用した非線形係数評価装置の計測精度に関する検討 (2017)
  • Author(s): 小山 美緒, 野竹 孝志, 伊藤 弘昌, 南出 泰亜
  • Organizer: 第78回応用物理学会秋季学術講演会
• [Presentation] 非位相整合SHGによる非線形結晶の面内結晶特性評価装置 (2017)
  • Author(s): 小山 美緒, 野竹孝志, 伊藤弘昌, 南出 泰亜
  • Organizer: レーザー学会第503回研究会
  • Place of Presentation: 宮城県仙台市（東北工業大学 一番町ロビー）
• [Presentation] High-resolution, THz-wave real-time imaging with Si-camera based on nonlinear optical up-conversion. (2016)
  • Author(s): Mio Koyama, Kouji Nawata, Yu Tokizane, Yuma Takida, Zhengli Han, Takashi Notake, Shin'ichiro Hayashi,Hiroaki Minamide
  • Organizer: Conference on Lasers and Electro-Optics(CLEO2016)
  • Place of Presentation: San Jose, California, USA
  • Year and Date: 2016-06-05
  • Int'l Joint Research