Dynamic diffraction and interband transitions in two-dimensional photonic lattices |
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| Authors: | Terhalle Bernd Desyatnikov Anton S Neshev Dragomir N Krolikowski Wieslaw Denz Cornelia Kivshar Yuri S |
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| Institution: | Nonlinear Physics Centre, Centre for Ultra-high bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200, Australia. |
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| Abstract: | We reveal a direct link between two fundamental wave phenomena in periodic media, Pendell?sung oscillations and resonant coupling between spectral bands. We experimentally measure the power transfer between laser beams associated with the high-symmetry points in periodic and biased hexagonal photonic lattices. As a result, we demonstrate that Pendell?sung oscillations dominate the dynamics of resonant interband transitions on a short propagation scale. |
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