A. P. Torbin, R. A. Kuramshin, A. K. Chernyshov, P. A. Mikheev, “Features of energy exchange between 2p states of argon in the active medium of an optically pumped rare-gas metastable laser”, Kvantovaya Elektronika, 2025, Volume 55, Number 4,Pages <nobr>201

On the 45th Anniversary of the Samara Branch of the Lebedev Physical Institute of the Russian Academy of Sciences

Features of energy exchange between 2p states of argon in the active medium of an optically pumped rare-gas metastable laser

A. P. Torbin, R. A. Kuramshin, A. K. Chernyshov, P. A. Mikheev

Samara Branch of P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: A method is proposed and implemented to determine a set of constants for collisional processes that ensure an energy exchange between 2p states of the laser cycle in an optically pumped argon metastable laser. The time dependences of the spontaneous emission of these states after selective excitation with narrow-band pulsed radiation from a tunable laser are observed experimentally and compared with the results of simulation. Additionally, conditions obtained using integral relations for the populations of the observed excited states of the argon atom are imposed. The results indicate a pathway for the transfer of optical pump energy to the upper laser level that differs from previous concepts.

Keywords: optically pumped rare-gas metastable laser, collisional kinetics.

Received: 13.05.2025
Revised: 15.07.2025
Accepted: 16.07.2025