@inproceedings{ace681d137794f599511cbd84f093a36,
title = "Ab initio molecular dynamics of highly charged fullerene cations in intense near-infrared laser fields",
abstract = "We theoretically investigated the stability of highly charged fullerene cations produced with an ultrashort intense near-infrared (IR) laser pulse (light intensity I∼ 5 × 1014 W/cm2 and wavelength λ ∼ 1800 nm). The effects of nonlinear interactions with near-IR pulses are taken into account by combining an ab initio molecular dynamics method with an time-dependent adiabatic state approach. The results indicate that large-amplitude vibration with energy of > 10 eV is induced by impulsive Raman excitation in the delocalized hg(1)-like mode of C602+. The field-induced large-amplitude vibration of the hg(1) mode persists for a rather long period. In conclusion, C 60 and its cations created upon ionization are extremely robust against field-induced structural deformation. We found that the acquired vibrational energy is maximized at Tp ∼ Tvib/2, where Tp is the pulse length and Tvib is the vibrational period of the hg(1) mode. We confirmed that the vibrational energy deposited in C60 can be controlled by a pulse train, i.e., by changing the intervals between pulses. Vibrational mode selectivity is also achieved by adjusting the pulse intervals.",
keywords = "Ab initio molecular dynamics, Fullerene, Impulsive Raman excitation, Intense laser field",
author = "Hirohiko Kono and Katsunori Nakai and Naoyuki Niitsu",
year = "2007",
month = nov,
day = "26",
doi = "10.1117/12.750116",
language = "English",
isbn = "0819468835",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "ICONO 2007",
note = "ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information ; Conference date: 28-05-2007 Through 01-06-2007",
}