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

2017 Fiscal Year Final Research Report

• 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
• Keywords: 有機結晶 / 非線形光学係数 / 結晶評価

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.

Free Research Field

レーザー光学