Ultrafast excitation, ionization, and fragmentation of C60

Ab initio molecular dynamics and wavepacket dynamics of highly charged fullerene cations produced with intense near-infrared laser pulses

“…For example, Hertel et al [27,49] used femtosecond laser pulses tailored with closed-loop, optimal control feedback to induce large-amplitude vibrational oscillations in C 60 . Bhardwaj et al [31] have proposed a control scheme of using a train of pulses.…”

“…Much attention has recently been paid to the competition between ionization and fragmentation of large molecules such as fullerenes [27,28]. It is known that C 60 interacting with a laser field of k 6 800 nm decomposes into fragments, e.g., through the loss of C 2 -units [27].…”

“…It is known that C 60 interacting with a laser field of k 6 800 nm decomposes into fragments, e.g., through the loss of C 2 -units [27]. As the pulse length is shortened, fragmentation is relatively suppressed.…”

“…C 12þ 60 is the highest charge state of C 60 ever reported. This is just an example to indicate that the development of laser systems generating intense femtosecond pulses has made a new tool for manipulating the dynamics of molecules on an ultrashort time scale available to chemists [18,19,27]. In this paper, we report the results of applications of the TD adiabatic state approach to the investigation of fieldinduced vibrational dynamics of fullerenes, namely, C 20 and C 60 .…”

Stability and delayed fragmentation of highly charged C60 trapped in a conic-electrode electrostatic ion resonator (ConeTrap)

“…The competition between radiative emission and delayed electron emission or delayed evaporation of C 2 molecules from C À 60 , has been closely investigated in the past years in the storage rings ELISA and ASTRID [7]. For the cation C þ 60 , a large amount of experimental work has been devoted to fragmentation studies on rather short time scales by employing different excitation techniques such as electron impact, laser [8] and collision [9] induced dissociation. Metastable fractions [10] and kinetic energy release [11] have been measured by a combination of a magnetic and two electrostatic mass-selectors.…”