Interaction of laser radiation with matter

Experimental study of the energy balance in the interaction of a pulsed CO₂ laser with metal and insulating targets in air

N. A. Babaeva, Yu. M. Vas'kovskiĭ, R. E. Rovinskiĭ, V. A. Ryabinkina


Abstract: Measurements were made of components of the energy balance in the interaction of pulsed CO₂ laser radiation with Dural, glass, quartz, ebonite, and Plexiglas in air at atmospheric pressure. At laser energy densities between 1 and 20 J/cm² and in the spectral range 0.2–7 μm, the re-emission of radiation by the laser plasma was found to be less than 1 %. At energy densities exceeding 10 J/cm², up to 90% of the laser energy failed to reach the irradiated surface.

UDC: 621.373.826.038.823

PACS: 61.80.Ba, 61.82.Bg, 61.82.Ms, 52.25.Os, 52.50.Jm

Received: 01.02.1991

 English version: Soviet Journal of Quantum Electronics, 1991, 21:9, 990–992

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