Radiation induced gas-dynamic refractive index changes in an iodine laser oscillator
Due to the exothermic recombination of ground state iodine atoms I with free radicals C(3)F(7) to the parent molecule C(3)F(7)I, the gaseous medium of an iodine laser oscillator is subject to spatially inhomogeneous heating. This causes temperature and pressure gradients leading to gas-dynamic motion and thus to density and refractive index changes perturbing the optical quality of the laser medium. Since the strength of the recombination reaction depends directly on the laser intensity via the process of stimulated emission, this coupling can lead to a self-termination of the laser radiation. This phenomenon is investigated experimentally and theoretically.
Bibliographic Reference: Article: Journal of Quantum Electronics, Vol. 27 (1991) No. 3, pp. 459-464
Record Number: 199111428 / Last updated on: 1994-12-02
Original language: en
Available languages: en