scholarly journals Vibrational relaxation and dephasing of Rb2 attached to helium nanodroplets

2011 ◽  
Vol 13 (15) ◽  
pp. 6816 ◽  
Author(s):  
B. Grüner ◽  
M. Schlesinger ◽  
Ph. Heister ◽  
W. T. Strunz ◽  
F. Stienkemeier ◽  
...  
Keyword(s):  
Vibrational Relaxation ◽  
Helium Nanodroplets

Vibrational energy relaxation dynamics of diatomic molecules inside superfluid helium nanodroplets. The case of the I2 molecule

2018 ◽  
Vol 20 (1) ◽  
pp. 118-130 ◽  
Author(s):  
Arnau Vilà ◽  
Miguel Paniagua ◽  
Miguel González
Keyword(s):  
Superfluid Helium ◽  
Vibrational Relaxation ◽  
Time Scale ◽  
Theoretical Study ◽  
Vibrational Energy ◽  
Diatomic Molecules ◽  
Relaxation Dynamics ◽  
Vibrational Energy Relaxation ◽  
Helium Nanodroplets ◽  
Quantum Approach

The vibrational relaxation (VER) of a X2 molecule in a 4He superfluid nanodroplet (HeND; 0.37 K) was studied adapting a quantum approach recently proposed by us. In the first theoretical study on the VER of molecules inside HeND the I2 molecule was examined [cascade mechanism (ν → ν − 1; ν − 1 → ν − 2; …) and time scale of ns].

Double-Excitation Dynamics in m-LPPP probed with sub-20 fs Time Resolution

2003 ◽  
Vol 771 ◽  
Author(s):  
C. Gadermaier ◽  
G. Cerullo ◽  
C. Manzoni ◽  
U. Scherf ◽  
E.J.W. List ◽  
...  
Keyword(s):  
Vibrational Relaxation ◽  
Broad Band ◽  
Generation Efficiency ◽  
Exciton Dissociation ◽  
Charge Generation ◽  
Carrier Generation ◽  
Dissociation Probability ◽  
Ultrafast Relaxation ◽  
First Excited State ◽  
Differential Transmission

AbstractIn a novel modification of transient differential transmission spectroscopy, the first excited state S1 is reexcited via a second laser pulse towards a higher lying state Sn. The dynamics of the relaxation of this state Sn as well as the states created from Sn are revealed by a broad-band probe pulse.We find that the charge carrier generation efficiency from Sn is higher compared to S1. The push and probe durations below 20 fs enable the temporal resolution of the ultrafast relaxation of the Sn state and enables us to identify the two main contributions to enhanced charge generation from Sn, energy migration towards sites of high dissociation probability, and exciton dissociation during vibrational relaxation.

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