Bloch oscillations and Zener tunneling in two-dimensional photonic lattices |
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| Authors: | Trompeter Henrike Krolikowski Wieslaw Neshev Dragomir N Desyatnikov Anton S Sukhorukov Andrey A Kivshar Yuri S Pertsch Thomas Peschel Ulf Lederer Falk |
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| Institution: | Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia. |
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| Abstract: | We report on the first experimental observation of photonic Bloch oscillations and Zener tunneling in two-dimensional periodic systems. We study the propagation of an optical beam in a square lattice superimposed on a refractive index ramp. We observe oscillations of the beam inside the first Brilloin zone and tunneling of light from the first to the higher-order bands of the lattice band gap spectrum. |
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