Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-775 - C7-780
DOI http://dx.doi.org/10.1051/jp4:19917207
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-775-C7-780

DOI: 10.1051/jp4:19917207

EXPLOSIVE ABSORPTION EFFECT OF POWER CO2 LASER BEAM IN ATMOSPHERE

V.I. ZAKHAROV, V.M. SHMELEV and A.I. NESTERENKO

Laser-Test Division, The SORUS Co. Ltd., Zarechny settl, "Takhov" 104, Sverdlovsk reg. 624051, USSR


Abstract
The interaction of a wide beam of intense 10.6 µm and 9.4 µm laser radiation with atmospheric CO2 is studied. The threshold spectroscopic effect of explosive absorption have been obtained. In this effect the absorption coefficient of the atmosphere increases sharply owing to strong self-heating ([MATH] 700-1000 K) of the beam channel.



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