[18p-E205-1~17] 3.6 Ultrashort-pulse and high-intensity lasers

[18p-E205-12] Transient absorption spectroscopy of N₂O at the N K-edge with soft X-ray high harmonics

〇Nariyuki Saito¹, Hiroki Sannohe¹, Nobuhisa Ishii¹, Teruto Kanai¹, Yi Wu², Andrew Chew², Seunghwoi Han², Zenghu Chang², Jiro Itatani¹ (1.ISSP, Univ. Tokyo, 2.Univ. Central Florida)

Keywords:high-harmonic generation, soft X-ray, N2O

We report on the soft X-ray transient absorption spectroscopy of N₂O at the N K-edge using high harmonics generated by an intense 1600 nm light source. The electron and nuclear molecular dynamics triggered by tunnel ionization can be extracted from the measured transient absorption spectra.