Observation of second-band vortex solitons in 2D photonic lattices.
作者信息
Bartal Guy, Manela Ofer, Cohen Oren, Fleischer Jason W, Segev Mordechai
机构信息
Physics Department, Technion--Israel Institute of Technology, Haifa 32000, Israel.
出版信息
Phys Rev Lett. 2005 Jul 29;95(5):053904. doi: 10.1103/PhysRevLett.95.053904.
Abstract
We demonstrate second-band bright vortex-array solitons in photonic lattices. This constitutes the first experimental observation of higher-band solitons in any 2D periodic system. These solitons possess complex intensity and phase structures, yet they can be excited by a simple highly localized vortex-ring beam. Finally, we show that the linear diffraction of such beams exhibits preferential transport along the lattice axes.
摘要
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