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Published on: February 25, 2017
Efficient parametric amplification of narrow beams in photonic crystals
Kestutis Staliunas1, Yurii Loiko, Ramon Herrero
1Institució Catalana de Reserca i Estudis Avançats and Department de Fisica i Enginyeria Nuclear,Universitat Politècnica de Catalunya, Colom 11, E-08222 Terrassa, Barcelona, Spain. Kestutis.Staliunas@ff.vu.lt
Abstract:
We theoretically predict and numerically demonstrate that narrow beams (of the width of few wavelengths) can be efficiently parametrically amplified in nonlinear photonic crystal (with chi((2)) nonlinearity) tuned to sub-diffractive (self-collimating) regimes. We derive relations and give analytic estimations for the efficiency of amplification.
