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Yu Zhu, Xiaoyong Hu, Yongyang Huang, Hong Yang and Qihuang Gong Fast and Low-Power All-Optical Tunable Fano Resonance in Plasmonic Microstructures Advanced Optical Materials 1

Version of Record online: 31 JAN 2013 | DOI: 10.1002/adom.201200025

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A fast and low-power all-optical tunable Fano resonance in a plasmonic microstructure made of gold and polycrystalline LiNbO3 is realized by combining strong quantum confinement enhancing nonlinearity and near-resonant excitation enhancing nonlinearity. The operating pump intensity is reduced by four orders of magnitude, while a fast response time on the order of a hundred picoseconds and a large tunability are maintained.

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