Nontrivial Bloch oscillations in waveguide arrays with second-order coupling
Publication in refereed journal

香港中文大學研究人員

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摘要Under the influence of the next-nearest-neighbor interaction, we theoretically investigate the occurrence of Bloch oscillations in zigzag waveguide arrays. Because of the special topological configuration of the lattice itself, the second-order coupling (SOC) can be enhanced significantly and leads to the band alteration beyond the nearest-neighbor model, i.e., the offset of minimum value from the band edge. Contrary to the behavior in the vanishing SOC, the oscillation patterns exhibit new features, namely, a double turning-back occurs when the beam approaches the band edge. Our results can be applied to some ordered-lattice systems. (C) 2010 Optical Society of America
著者Wang G, Huang JP, Yu KW
期刊名稱Optics Letters
出版年份2010
月份6
日期1
卷號35
期次11
出版社Optical Society of America
頁次1908 - 1910
國際標準期刊號0146-9592
電子國際標準期刊號1539-4794
語言英式英語
Web of Science 學科類別Optics; OPTICS

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