Vol. 39, issue 07, article # 4
Astapenko V. A., Sakhno S. V. Absorption of laser pulses in water vapor: description in terms of the total absorption coefficient. // Optika Atmosfery i Okeana. 2026. V. 39. No. 07. P. 574–578. DOI: 10.15372/AOO20260704 [in Russian].Copy the reference to clipboard
Abstract:
The absorption of pico- and subpicosecond laser pulses in water vapor is described using the total absorption coefficient (TAC) in the spectral range 7000–7450 cm-1. The dependences of TAC on the carrier frequency, pulse duration, and absorbing layer thickness are calculated. The characteristic features of the process under study, caused by the specific nature of ultrafast electromagnetic interaction, are established. The suggested approach can simplify calculation and analysis of absorption of laser pulses in water vapor in the near-infrared range.
Keywords:
laser pulse, water vapor, absorption cross section, total absorption coefficient, HITRAN database
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