Lasing without population inversion in N2+
We experimentally demonstrate the existence of long-lived coherent polarizations coupling
simultaneously ground state X ( X 2 Σ g+) to excited states A ( A 2 Π u) and B ( B 2 Σ
u+) of N 2+ inside a plasma created by a short intense laser pulse at 800 nm. This three-
level V-scheme arrangement is responsible for a strong optical gain without population
inversion at the B–X transition at 391.4 nm. Simulations based on Maxwell-Bloch equations
reproduce well the kinetics and the pressure dependence of the gain.
simultaneously ground state X ( X 2 Σ g+) to excited states A ( A 2 Π u) and B ( B 2 Σ
u+) of N 2+ inside a plasma created by a short intense laser pulse at 800 nm. This three-
level V-scheme arrangement is responsible for a strong optical gain without population
inversion at the B–X transition at 391.4 nm. Simulations based on Maxwell-Bloch equations
reproduce well the kinetics and the pressure dependence of the gain.
[引用][C] Lasing without population inversion in N2+
R Danylo - SPO 2019 20th International Young Scientists …, 2019 - hal.science
Lasing without population inversion in N2+ - Archive ouverte HAL …
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