Quantum erasing of laser emission in N$_2^+$
Optics
2023-07-19 v1 Atomic Physics
Abstract
Cavity-free lasing of N induced by a femtosecond laser pulse at 800~nm is nearly totally suppressed by a delayed twin pump pulse. We explain this surprising effect within the V-scheme of lasing without population inversion. A fast transfer of population between nitrogen ionic states X and A, induced by the second pulse, terminates the conditions for amplification in the system. Appearance of short lasing bursts at delays corresponding to revivals of rotational wave packets are explained along the same lines.
Cite
@article{arxiv.2004.07785,
title = {Quantum erasing of laser emission in N$_2^+$},
author = {Rostyslav Danylo and Guillaume Lambert and Yi Liu and Vladimir Tikhonchuk and Aurélien Houard and André Mysyrowicz},
journal= {arXiv preprint arXiv:2004.07785},
year = {2023}
}