Large nonlinear phase shifts in second-order nonlinear optical processes

G. I. Stegeman, M. Sheik-Bahae, E. VanStryland, and G. Assanto

Opt. Lett. 18, 13-15 (1993).


We show that processes such as second-harmonic generation and subsequent down-conversion, and parametric mixing in general, can lead to large field-dependent phase shifts for the input beams under a variety of conditions.