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  Phys. Rev. Lett. 106, 193903-4 (12 May 2011)
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Realization of Reflectionless Potentials in Photonic Lattices
A. Szameit, F. Dreisow, M. Heinrich, S. Nolte, and A. A. Sukhorukov,
Phys. Rev. Lett. 106, 193903-4 (2011).
[Full-text PDF (3 Mb)] [Online]
Experimental image of an optical beam as it passes without reflections through a specially designed modulation in coupled waveguide arrays.
Abstract: We realize experimentally a true reflectionless potential, which facilitates nonresonant unity transmission for all incident waves and at the same time supports localized modes. We utilize arrays of evanescently coupled optical waveguides, where a particular modulation of the transverse waveguide separations provides a physical realization of reflectionless Ablowitz-Ladik soliton potentials.
Keywords: wave-guide arrays; laser

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