Light-induced polarization reversal in room-temperature organic ferroelectrics

2014 Fiscal Year Final Research Report

• Project/Area Number: 25600072
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied materials
• Research Institution: The University of Tokyo
• Principal Investigator: KIDA Noriaki 東京大学, 新領域創成科学研究科, 准教授 (30587069)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 有機強誘電体 / テラヘルツ / ドメインイメージング

Outline of Final Research Achievements

In this work, we observed the light-induced polarization reversal in room-temperature organic ferroelectrics. Furthermore, for the first time, terahertz radiation induced by nonlinear optical process (i.e., optical rectification and impulsive stimulated Raman scattering) was detected in room-temperature organic ferroelectrics by irradiation of a femtosecond laser pulse. In addition, visualization of ferroelectric domains and domain walls was made using a terahertz-radiation imaging.

Free Research Field

テラヘルツ物性