Quasi-Bloch Oscillations in Curved Coupled Optical Waveguides
2009; American Physical Society; Volume: 103; Issue: 14 Linguagem: Inglês
10.1103/physrevlett.103.143903
ISSN1092-0145
AutoresArash Joushaghani, Rajiv Iyer, Joyce K. S. Poon, J. Stewart Aitchison, C. Martijn de Sterke, Jun Wan, Marc M. Dignam,
Tópico(s)Photonic and Optical Devices
ResumoWe report the observation of quasi-Bloch oscillations, a recently proposed, new type of dynamic localization in the spatial evolution of light in a curved coupled optical waveguide array. By spatially resolving the optical intensity at various propagation distances, we show the delocalization and final relocalization of the beam in the waveguide array. Through comparisons with other structures, we show that this dynamic localization is robust beyond the nearest-neighbor tight-binding approximation and exhibits a wavelength dependence different from conventional dynamic localization.
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