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Brief Communications

Transmission cutoff accompanying remote optical breakdown of the atmosphere by CO₂ laser pulses

A. P. Godlevskiĭ, Yu. D. Kopytin


Abstract: An experimental study was made of the absorption of laser radiation (λ =10.6 μ) accompanying optical breakdown in transmission paths of up to 130 m in the real atmosphere. It was discovered that a transmission cutoff occurred in technically pure air and in the atmosphere with particles having a specified disperse composition. Under laboratory conditions an investigation was made of the growth rate of the plasma formations as a function of the duration of the interaction pulse and of the pressure of the surrounding air.

UDC: 621.373.826.038.823

PACS: 42.68.Rp, 42.68.Db

Received: 01.06.1981

 English version: Soviet Journal of Quantum Electronics, 1982, 12:6, 813–815

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