Abstract
We demonstrate both experimentally and numerically linear symmetry-breaking diffraction and nonlinear dynamic self-trapping of an optical beam in hexagonal photonic lattices. We show that a stripe multivortex beam undergoes asymmetric linear diffraction, but evolves into a moving self-trapped beam under a self-defocusing nonlinearity. Fine features of symmetry-breaking in diffraction of elliptical multivortex beams are also observed and discussed.
Original language | English |
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Article number | 061907 |
Journal | Applied Physics Letters |
Volume | 100 |
Issue number | 6 |
DOIs | |
State | Published - 6 Feb 2012 |