Phys. Rev. A 63, 053807 (2001) [9 pages]Multiphoton processes in the presence of self-phase-modulationReceived 24 August 2000; published 13 April 2001 We have theoretically investigated the effects of self-phase-modulation on multiphoton nonlinear optical processes in semiconductors, utilizing multiple-order perturbation theory based on a set of coupled nonlinear-wave equations. Our results clearly demonstrate that the self-phase-modulation in the fundamental field induces spectral broadening in the harmonic fields (cross-phase modulation) and alleviates phase mismatch by providing a distribution of wave vectors. These results are consistent with our recent observation of extreme nonlinear optical behavior in bulk semiconductors under intense mid-infrared radiation. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.053807
DOI:
10.1103/PhysRevA.63.053807
PACS:
42.65.Ky, 42.65.Re, 42.70.Nq, 42.65.Hw
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