Interaction of laser radiation with matter. Laser plasma

Chemoautocollimation of radiation from a cw CO₂ laser in ethylene

G. I. Kozlov

Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow

Abstract: The formation of a chemoautocollimation light guide of length approximately 4 cm and diameter 150 μm was observed upon focusing radiation from a 35-W cw gas-discharge CO₂ laser into the ethylene flow. The high-intensity laser radiation in the autocollimation channel initiated ethylene pyrolysis leading to the production of acetylene, and resulted in the visualisation of the channel.

PACS: 42.65.Jx, 51.70.+f, 42.55.Lt

Received: 21.06.2001

 English version: Quantum Electronics, 2002, 32:1, 31–32

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