Recollision induced superradiance of ionized nitrogen molecules
Optics
2015-10-28 v1
Abstract
We propose a new mechanism to explain the origin of optical gain in the transitions between excited and ground state of the ionized nitrogen molecule following irradiation of neutral nitrogen molecules with an intense ultra short laser pulse. An efficient transfer of population to the excited state is achieved via field-induced multiple recollisions. We show that the proposed excitation mechanism must lead to a super-radiant emission, a feature that we confirm experimentally.
Cite
@article{arxiv.1508.05516,
title = {Recollision induced superradiance of ionized nitrogen molecules},
author = {Yi Liu and Pengji Ding and Guillaume Lambert and Aurelien Houard and Vladimir Tikhonchuk and Andre Mysyrowicz},
journal= {arXiv preprint arXiv:1508.05516},
year = {2015}
}
Comments
15 pages, 4 figures