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1篇 您的检索式:作者名="Wayne Dickson"
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1Universal switching of plasmonic signals using optical resonator modes显示文摘We propose and investigate,both experimentally and theoretically,a novel mechanism for switching and modulating plasmonic signals based on a Fano interference process,which arises from the coupling between a narrow-band optical Fabry–Pérot cavity and a surface plasmon polariton(SPP)source.The SPP wave emitted from the cavity is actively modulated in the vicinity of the cavity resonances by altering the cavity Q-factor and/or resonant frequencies.We experimentally demonstrate dynamic SPP modulation both by mechanical control of the cavity length and all-optically by harnessing the ultrafast nonlinearity of the Au mirrors that form the cavity.An electro-optical modulation scheme is also proposed and numerically illustrated.Dynamic operation of the switch via mechanical means yields a modulation in the SPP coupling efficiency of~80%,while the all-optical control provides an ultrafast modulation with an efficiency of 30%at a rate of~0.6 THz.The experimental observations are supported by both analytical and numerical calculations of the mechanical,all-optical and electro-optical modulation methods.Cillian PT McPolin Nicolas Olivier Jean-Sebastien Bouillard Daniel O’Connor Alexey V Krasavin Wayne Dickson Gregory A Wurtz Anatoly V Zayats 2016Light(Science & Applications)2016,5,1:0
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