scholarly journals Multiphoton ionization dissociation dynamics of iodoethane studied with velocity map imaging technique

2018 ◽  
Vol 67 (20) ◽  
pp. 203301
Author(s):  
Yan Yi-Hui ◽  
Liu Yu-Zhu ◽  
Ding Peng-Fei ◽  
Yin Wen-Yi
Keyword(s):  
Imaging Technique ◽  
Multiphoton Ionization ◽  
Velocity Map Imaging ◽  
Dissociation Dynamics

Near-threshold photodissociation dynamics of CHCl3

2014 ◽  
Vol 16 (13) ◽  
pp. 6068-6074 ◽  
Author(s):  
Mike Reid ◽  
Victoria Green ◽  
Sven P. K. Koehler
Keyword(s):  
Imaging Technique ◽  
Velocity Map Imaging ◽  
Dissociation Dynamics ◽  
Near Threshold

Dissociation dynamics of chloroform near the threshold investigated using the velocity-map imaging technique show that the three lowest states 3Q1, 1Q1, and 3Q0 are involved in the dynamics.

scholarly journals Single-shot imaging of surface molecular ionization in nanosystems

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fenghao Sun ◽  
Hui Li ◽  
Shanshan Song ◽  
Fei Chen ◽  
Jiawei Wang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Strong Field ◽  
Imaging Technique ◽  
Near Field ◽  
Velocity Map Imaging ◽  
Single Shot ◽  
Surface Molecules ◽  
Nanoparticle Interactions ◽  
Field Response ◽  
Ion Species

Abstract Using single-shot velocity map imaging technique, explosion imaging of different ion species ejected from 50 nm SiO2 nanoparticles are obtained excitedly by strong near-infrared and ultraviolet femtosecond laser fields. Characteristic momentum distributions showing forward emission of the ions at low excitation intensities and shock wave behaviors at high intensities are observed. When the excitation intensity is close to the dissociative ionization threshold of the surface molecules, the resulting ion products can be used to image the instant near-field distributions. The underlying dynamics of shock formation are simulated by using a Coulomb explosion model. Our results allow one to distinguish the ultrafast strong-field response of various molecular species in nanosystems and will open a new way for further exploration of the underlying dynamics of laser-and-nanoparticle interactions.

Ion dissociation dynamics of the chlorine azide cation (ClN3+) investigated by velocity map imaging

2003 ◽  
Vol 118 (23) ◽  
pp. 10485-10493 ◽  
Author(s):  
N. Hansen ◽  
A. M. Wodtke ◽  
A. V. Komissarov ◽  
K. Morokuma ◽  
M. C. Heaven
Keyword(s):  
Velocity Map Imaging ◽  
Ion Dissociation ◽  
Dissociation Dynamics

Ultrafast relaxation investigated by Photoelectron Circular Dichroism : an isomeric comparison of Camphor and Fenchone

2021 ◽  
Author(s):  
Valérie Blanchet ◽  
Dominique Descamps ◽  
stephane Petit ◽  
Yann Mairesse ◽  
bernard Pons ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Imaging Technique ◽  
Velocity Map Imaging ◽  
Relaxation Dynamics ◽  
Time Resolved ◽  
Pump Probe ◽  
Ultrafast Relaxation ◽  
Circular Dichroïsm ◽  
Isomeric Effects

We study isomeric effects using time resolved photoelectron circular dichroism (PECD). By a (1+1’)pump-probe ionisation with photoelectron collected by velocity map imaging technique, we compare relaxation dynamics from the 3s-Rydberg...

Velocity Map Imaging: Technique and Applications to O2Photodissociation

2000 ◽  
pp. 56-67
Author(s):  
D. H. Parker ◽  
B. L. G. Bakker ◽  
R. Delmdahl ◽  
T. Berg ◽  
A. T. J. B. Eppink
Keyword(s):  
Imaging Technique ◽  
Velocity Map Imaging

Non-adiabatic photodissociation dynamics of BrCl

1994 ◽  
Vol 72 (3) ◽  
pp. 758-761 ◽  
Author(s):  
Jianying Cao ◽  
Hans-Peter Loock ◽  
Charles X.W. Qian
Keyword(s):  
Laser Radiation ◽  
Potential Energy ◽  
Multiphoton Ionization ◽  
Branching Ratio ◽  
Tunable Laser ◽  
Branching Ratios ◽  
Excitation Wavelength ◽  
Dissociation Dynamics ◽  
Adiabatic Transitions ◽  
Insight Into

Nozzle-cooled BrCl was excited with tunable laser radiation at selected wavelengths between 389 and 500 nm. The chlorine atomic fragments in their Cl*(2P1/2) and Cl(2P3/2) state were stated-selectively probed by resonance-enhanced multiphoton ionization. The branching ratio (Cl*/(Cl + Cl*)) was measured as a function of the excitation wavelength. The relative Cl* yield reaches a maximum at around λphot = 460 nm. Decomposition of these branching ratios into Cl and Cl* photofragment yield spectra provides insight into the BrCl B-state 3П(0+) non-adiabatic dissociation dynamics. Our results suggest that the dissociation mechanism involves non-adiabatic transitions among 0+ potential energy curves.

Photodissociation Dynamics of 2-Bromopropane Using Velocity Map Imaging Technique

2010 ◽  
Vol 114 (21) ◽  
pp. 6188-6193 ◽  
Author(s):  
Rongshu Zhu ◽  
Bifeng Tang ◽  
Xiu Zhang ◽  
Bing Zhang
Keyword(s):  
Imaging Technique ◽  
Velocity Map Imaging
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