We present a simple technique to measure the absorption coefficient of molecules which avoids the interference of the distortion of the spatial profile of the laser beam due to self-focusing/self-defocusing.
© 1990 Optical Society of America
Original Manuscript: January 10, 1990
Published: October 20, 1990
Yves Beaudoin and S. L. Chin, "Absorption coefficient measurement without interference from the nonlinear index effect," Appl. Opt. 29, 4431-4433 (1990)