N2O ionization and dissociation dynamics in intense few cycle femtosecond laser radiation

28th International Conference on Photonic, Electronic and Atomic Collisions

Karimi, Reza^1 ; Walles, B.^1 ; Bisson, Éric^2 ; Beaulieu, Samuel^2 ; Giguère, Mathieu^2 ; Long, Zijian^1 ; Liu, Wing-Ki^1 ; Kieffer, Jean-Claude^2 ; Légaré, François^2 ; Sanderson, Joseph^1

Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo

ON

N2L 3G1, Canada^1

Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, Varennes

QC

J3X 1S2, Canada^2

关键词: Dissociation dynamics;    Few-cycle;    Few-cycle pulse;    Ion imaging;    Pulse length;    Selective channels;    Uniform electric fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/3/032026/pdf
DOI  :  10.1088/1742-6596/488/3/032026

来源: IOP

【 摘 要 】

Using few cycle pulses, uniform-electric-field-ion imaging spectrometer and Dalitz plotting, we can identify two new stepwise processes, in the dissociation of the 3+ and 4+ states of N2O in intense few cycle pulses at 4 × 1015Wcm-2. We observe suppression of selective channels at longer pulse length, which we attribute to molecular dynamics on the 2+ state and the shape of the 3+ potential, which influences propagation of the dissociating wave packet.