J. Phys. IV France 01 (1991) C7-775-C7-780
EXPLOSIVE ABSORPTION EFFECT OF POWER CO2 LASER BEAM IN ATMOSPHEREV.I. ZAKHAROV, V.M. SHMELEV and A.I. NESTERENKO
Laser-Test Division, The SORUS Co. Ltd., Zarechny settl, "Takhov" 104, Sverdlovsk reg. 624051, USSR
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.
© EDP Sciences 1991