Changes in the beam profile of the CO2 laser 10R(26) line, caused by transmission through, and absorption by, CDF3 were studied using an array of pyroelectric detectors. During the propagation of the laser beam through CDF3, nonlinear absorption and self-defocusing of the beam have both been determined from measurements of the effect on the exit beam of fluence, radiant energy, CDF3 pressure, transmission cell length, and distance from the exit of the cell to the detector array.
© 1985 Optical Society of America
P. Galarneau, Z. Y. Niu, F. Yergeau, S. L. Chin, D.K. Evans, and Robert D. McAlpine, "Simultaneous nonlinear absorption and index effects in the propagation of intense tea CO2 laser pulses through CDF3," Appl. Opt. 24, 2804-2808 (1985)