Vol. 27, issue 08, article # 13

Abstract:

The possibility of using the Novosibirsk free-electron laser as a source of terahertz radiation for remote sensing of the near-surface atmosphere is considered. The problem of selection of spectral ranges for sensing is solved in the range 40–250 cm^–1. Numerical experiment on simulation of a signal of terahertz lidar based on the Novosibirsk free-electron laser after signal reflection from the cloud base has been performed for particular initial and boundary optical-geometric conditions and the degree of signal extinction at the sensing path. The sensing range for the cloud base in selected atmospheric transparency windows has been estimated as a function of the specific content of settled water at the sensing path.

Keywords:

THz radiation, free-electron laser, remote sensing

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