[17a-M_110-1~13] 3.4 Laser system and materials

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17a-M_110-7] Fabrication of Quasi-phase-matched Multiple-plate Stacks of ZnSe by Use of Room-temperature Bonding

〇(M1)Tokifumi Otani¹, Daiki Sato¹, Keita Nakamura¹, Ichiro Shoji¹ (1.Chuo Univ.)

Keywords:

laser,wavelength conversion

For the purpose of developing high-power mid-infrared generation devices, we fabricated a multi-layer stacked structure of ZnSe using room-temperature bonding. Previously, scattering loss caused by dust at the bonding interface was a significant issue. To address this, we improved the cleaning process by changing the light source to blue light and switching the mounting substrate to silicon (Si) to enhance visibility and suppress dust contamination. As a result, interference fringes disappeared, and we successfully reduced the loss per interface at a wavelength of 10.6 µm from 2.7% to 0.83%.