New optical function of organic ferroelectrics based on terahertz technology

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03549
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials
• Research Institution: The University of Tokyo
• Principal Investigator: Kida Noriaki 東京大学, 大学院新領域創成科学研究科, 准教授 (30587069)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: テラヘルツ電磁波 / 有機強誘電体 / 強誘電ドメイン / 非線形光学効果

Outline of Final Research Achievements

In this work, we explore high efficient emission of the terahertz electromagnetic wave in various organic ferroelectrics upon femtosecond laser irradiation and develop the new method to visualize the ferroelectric domains and domain walls by using emission of the terahertz wave. In particular, we achieved the successful observation of the quasi-three-dimensional ferroelectric domains in [D-55DMBP][Dia] and nonlinear conduction paths in α-(BEDT-TTF)2I3.

Free Research Field

テラヘルツ物性