Characteristic features of the formation of cylindrical laser-induced thermal steady-state lenses in the dark stripes associated with spatial dark-soliton propagation are analyzed and verified experimentally in an ethanol–dye solution. Positive focusing power perpendicular to the dark stripe is ensured by defocusing along the axis of this stripe and depends strongly on the shape of the light-beam profile and the orientation of the dark stripe within it.
© 1996 Optical Society of America
Original Manuscript: February 20, 1996
Published: October 15, 1996
M. D. Iturbe Castillo, J. J. Sánchez-Mondragón, and S. Stepanov, "Formation of steady-state cylindrical thermal lenses in dark stripes," Opt. Lett. 21, 1622-1624 (1996)