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Atmospheric and Oceanic Optics

2020 year, number 5

Laser absorption in the atmosphere of Titan

O.P. Romashenko, A.S. Kornev, B.A. Zon
Voronezh State University, Voronezh, Russia
Keywords: атмосфера Титана, лазерное излучение, коэффициент затухания, туннельная ионизация, atmosphere of Titan, laser radiation, extinction coefficient, tunnel ionization


We derive general formulas for the extinction coefficient (in the Beer-Lambert-Bouguer law) of laser radiation in the atmosphere taking into account nonlinear effects and significantly differing from the results of linear optics. We perform specific calculations for the atmosphere of Titan. We demonstrate that taking into account the close-to-real dependence of atmospheric gas concentration on altitude leads to a noticeable difference in the altitude dependence of the extinction coefficient from the results obtained using the barometric formula. We also give estimates of the extinction coefficient in the atmosphere of Triton.