Influence of strongly coupled plasma environment on photoionization of H-like O7+ ion

2021 ◽  
Vol 28 (11) ◽  
pp. 112706
Author(s):  
Dishu Dawra ◽  
Mayank Dimri ◽  
A. K. Singh ◽  
Alok K. S. Jha ◽  
Rakesh Kumar Pandey ◽  
...  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tobias Kroker ◽  
Mario Großmann ◽  
Klaus Sengstock ◽  
Markus Drescher ◽  
Philipp Wessels-Staarmann ◽  
...  

AbstractPlasma dynamics critically depends on density and temperature, thus well-controlled experimental realizations are essential benchmarks for theoretical models. The formation of an ultracold plasma can be triggered by ionizing a tunable number of atoms in a micrometer-sized volume of a 87Rb Bose-Einstein condensate (BEC) by a single femtosecond laser pulse. The large density combined with the low temperature of the BEC give rise to an initially strongly coupled plasma in a so far unexplored regime bridging ultracold neutral plasma and ionized nanoclusters. Here, we report on ultrafast cooling of electrons, trapped on orbital trajectories in the long-range Coulomb potential of the dense ionic core, with a cooling rate of 400 K ps−1. Furthermore, our experimental setup grants direct access to the electron temperature that relaxes from 5250 K to below 10 K in less than 500 ns.


2014 ◽  
Vol 90 (2) ◽  
Author(s):  
Paul M. Chesler ◽  
Krishna Rajagopal

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