期刊
NANOSCALE
卷 8, 期 3, 页码 1421-1429出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr06464c
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类别
资金
- 973 program [2013CB922404]
- National Natural Science Foundation of China [11274031, 11434016]
- Beijing Key Lab of Microstructure & Property of Advanced Materials
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.
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