We study Bloch oscillations and Zener tunnelling in a two-dimensional optically-induced lattice with superimposed gradient of the refractive index. We observe simultaneous tunneling into three different points of the lattice bandgap spectrum.
© 2005 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.2770) Diffraction and gratings : Gratings
(190.0190) Nonlinear optics : Nonlinear optics
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
H. Trompeter, W. Krolikowski, D. N. Neshev, A. S. Desyatnikov, A. A. Sukhorukov, Y. S. Kivshar, T. Pertsch, U. Peschel, and F. Lederer, "Optical Bloch Oscillations and Zener Tunneling in Two-dimensional Photonic Lattices," in Nonlinear Guided Waves and Their Applications, Technical Digest (CD) (Optical Society of America, 2005), paper ThD1.
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