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25 January 2012 Quasi-phase-matching in randomly poled nonlinear superlattice
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Proceedings Volume 8414, Photonics and Micro- and Nano-structured Materials 2011; 84140T (2012) https://doi.org/10.1117/12.923114
Event: Photonics and Micro- and Nano- structured Materials 2011, 2011, Yerevan, Armenia
Abstract
We investigate quasi-phase-matching (QPM) and spontaneous parametric down-conversion in randomly poled structures. The novelty is that we consider the disordered structure which involves nonlinear segments separated by domains with linear optical spacers of random lengths. Considering down-conversion, we calculate the probability of production of pair photons by using the procedure of averaging over random positions of domains boundaries. We demonstrate the method of compensation of the dispersive effects in nonlinear segments by appropriately chosen linear dispersive segments of superlattice for realizing effective QPM and preparation of joint states of two photons.
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Diana A. Antonosyan, Majid Nemati, and Gagik Yu. Kryuchkyan "Quasi-phase-matching in randomly poled nonlinear superlattice", Proc. SPIE 8414, Photonics and Micro- and Nano-structured Materials 2011, 84140T (25 January 2012); https://doi.org/10.1117/12.923114
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