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Complete energy conversion by autoresonant three-wave mixing in nonuniform media
O Yaakobi1, L Caspani, M Clerici
1INRS-EMT, University of Quebec, 1650 Boul. Lionel Boulet, Varennes, Quebec, J3X 1S2 Canada. oded.yaakobi@emt.inrs.ca
Abstract:
Resonant three-wave interactions appear in many fields of physics e.g. nonlinear optics, plasma physics, acoustics and hydrodynamics. A general theory of autoresonant three-wave mixing in a nonuniform media is derived analytically and demonstrated numerically. It is shown that due to the medium nonuniformity, a stable phase-locked evolution is automatically established. For a weak nonuniformity, the efficiency of the energy conversion between the interacting waves can reach almost 100%. One of the potential applications of our theory is the design of highly-efficient optical parametric amplifiers.
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