Many-photon parametric resonant frequency up-conversion in a nonmonochromatic pump field
Iskanderov N. A., Kudryashov V. A., Matveev I. N., Ustinov N. D.
Photoinduced relaxation in a nonmonochromatic pump field should lead to the decay of the coherent response of the medium and to an increase in the saturation intensity, thereby strongly affecting the conversion efficiency.