Development of a contact grating device for intense terahertz pulse generation

2016 Fiscal Year Final Research Report

• 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
• 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

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.

Free Research Field

レーザー物理