講演情報
[19p-B205-9]Ultrafast dynamics of the interaction between double-pulse femtosecond laser and silica glass
〇Guoqi Ren1, Yusuke Ito1, Reina Yoshizaki1, Huijie Sun1, Junya Hattori1, Naohiko Sugita1 (1.The University of Tokyo)
キーワード：
Femtosecond laser、Plasma filament、Electron density
The ultrafast response of silica glass under the irradiation of a shot of double-pulse femtosecond laser is studied. It indicates that the excitations induced by the first pulse have a temporal effect on the propagation and absorption of the second pulse. More electrons can be excited while using appropriate inter-pulse delay, which contributes to efficient internal modifications. The results are helpful for understanding the laser absorption into the excited electrons, as well as the microprocessing applications in integrated photonics.