title: A cross-stacked plasmonic nanowire network for high-contrast femtosecond optical switching.
abstract: We report an ultrafast optical switching device constructed by stacking two layers of gold nanowires into a perpendicularly crossed network, which works at a speed faster than 280 fs with an on/off modulation depth of about 22.4%. The two stacks play different roles in enhancing consistently the optical switching performance due to their different dependence on the polarization of optical electric fields. The cross-plasmon resonance based on the interaction between the perpendicularly stacked gold nanowires and its Fano-coupling with Rayleigh anomaly is the dominant mechanism for such a high-contrast optical switching device.
authors.affiliation: Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China. zhangxinping@bjut.edu.cn.
authors.forename: Yuanhai
authors.initials: Y
authors.lastname: Lin
authors.affiliation: Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China. zhangxinping@bjut.edu.cn.
authors.forename: Xinping
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China. zhangxinping@bjut.edu.cn.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Fang
authors.affiliation: Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China. zhangxinping@bjut.edu.cn.
authors.forename: Shuyan
authors.initials: S
authors.lastname: Liang