[13a-2G-1~10] 3.6 Ultrashort-pulse and high-intensity lasers

[13a-2G-9] Nonadiabatic molecular orientation studied by high-order harmonic generation and ion imaging spectroscopy

〇Shinichirou Minemoto¹, Ryota Katsumi², Wataru Komatsubara², Siobhan Tobin^2,3, Hsu Liu^2,4, Hirofumi Sakai¹ (1.Grad.Sch. Sci., Univ. Tokyo, 2.Sch. Sci., Univ. Tokyo, 3.The Australian National University, 4.Reed College)

Keywords:nonadiabatic molecular orientation,high-order harmonics,ion imaging

Recently, a nonadiabatic molecular orientation is reported by using a two-color ultrafast laser pulses. In these experiments, the reported degrees of orientation is fairly large compared to expected degrees of orientation under a common condition of such experiments, which triggers a discussion on the mechanism of the generation of orientation states. We are trying to understand in detail the mechanism of the orentation by comparing the high-order harmonics and the fragment ions generated from the moleular samples oriented under the same conditions.