Double random-phase encoding in the Fresnel domain.

By Guohai Situ, Jingjuan Zhang. Optics Letters, 2004

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Roadmap on optical security (2016, methodology): “…Sr x Ba ( 1 − x ) Nb 2 O 6 , SBN ) in between the two neighboring planes in the DRPE system, connecting them with a nonlinear, rather than linear [ 90 ] , propagation that is described by the nonlinear Schrödinger equation [ 102 ] : where ( ) y x y z , , is the complex amplitude, p l = k 2 / the…”