A. Nazarkin et G. Korn, COHERENT PROPAGATION EFFECTS AND PULSE SELF-COMPRESSION UNDER THE CONDITIONS OF 2-PHOTON RESONANT DIFFERENCE-FREQUENCY-GENERATION, Physical review. A, 56(6), 1997, pp. 5187-5190
We predict the possibility of using two-photon coherent propagation ef
fects for generating pulses at the difference frequency with duration
significantly shorter and intensity higher than those of the input pum
p and injection pulse. [S1050-2947(97)05312-2].