The 67th JSAP Spring Meeting 2020

Presentation information

Oral presentation

3 Optics and Photonics » 3.7 Laser processing

[13a-B410-1~9] 3.7 Laser processing

Fri. Mar 13, 2020 9:00 AM - 11:30 AM B410 (2-410)

Aiko Narazaki(AIST), Yusuke Ito(Univ. Tokyo)

11:00 AM - 11:15 AM

[13a-B410-8] First-principles calculation of nonlinear optical absorption of crystalline solids with two-color laser fields

Kakeru Sasaki1, Yasushi Shinohara1, Kenichi Ishikawa1 (1.Tokyo Univ.)

Keywords:Laser processing, Femtosecond laser, The nonlinear optical absorption

We have calculated Non-linear photon absorption using ab initio calculation when a two-color laser was irradiated to an insulator with a wide band gap. It was confirmed that the amount of energy absorption was higher when a two-color laser was mixed than when a single-color laser was used. In this talk, we report how the behavior of energy absorption changes under various laser intensities.