Visualization of the formation of cyclopentylcarbene using time-resolved photoelectron imaging spectroscopy

Abstract

Ultrafast electronic relaxation dynamics in cyclohexene are studied using femtosecond photoelectron imaging spectroscopy. Transient photoelectron kinetic energy distributions and photoelectron angular distributions are obtained and analyzed. Photoelectron bands are discussed and assigned to the ionization of the related electronic states. The formation process of cyclopentylcarbene, together with the ultrafast relaxation of the involved electronic states, is evidenced by the transient photoelectron images. The lifetime for the observed carbene is very short and determined to be 395 (±67) fs. The ionization dynamics of the produced cyclopentylcarbene are also discussed via an analysis of the corresponding photoelectron band.

Photoelectron imaging spectroscopy and photodynamics of m-xylene cations

“…The experiments were performed with a home-built doublesided photoelectron-photoion imaging setup, which has been introduced previously [18,19]. Briefly, the imaging system consists of two symmetrical, collinear 50 cm long time-of-flight mass spectrometers, which share the same interaction region for detecting photoelectrons and photoions at two different sides.…”

Bright four-color quadripartite entanglement from quasi-phase-matching cascaded nonlinear optical frequency conversion

“…For example, the wavelengths of the pump fundamental, the second, third and fourth harmonic fields can be chosen as 1560 nm, 780 nm, 520 nm and 390 nm, respectively. These generated optical fields with different wavelengths can be used in many fields [50,51].…”

“…According to the input-output formalism developed by Collett and Gardiner, we can get the quantum Langevin equations of motion for the four intracavity fields [50]…”