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Fast and Low‐Power All‐Optical Tunable Fano Resonance in Plasmonic Microstructures
Author(s) -
Zhu Yu,
Hu Xiaoyong,
Huang Yongyang,
Yang Hong,
Gong Qihuang
Publication year - 2013
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201200025
Subject(s) - materials science , fano resonance , plasmon , picosecond , excitation , optoelectronics , resonance (particle physics) , microstructure , optics , laser , physics , atomic physics , quantum mechanics , metallurgy
A fast and low‐power all‐optical tunable Fano resonance in a plasmonic microstructure made of gold and polycrystalline LiNbO 3 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.