Maksymov Ivan S, Miroshnichenko Andrey E
Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT, Australia.
Opt Express. 2011 Mar 28;19(7):5888-94. doi: 10.1364/OE.19.005888.
Active control over light nanofocusing in a nanorod plasmonic antenna coupled to a photonic crystal cavity is proposed and demonstrated by means of full-vectorial 3D simulations. By varying the excitation of the cavity with laser beam spot size allows us to achieve a gradual control over light nanofocusing at the tip of the nanoantenna. The demonstrated control mechanism eliminates the need for nonlinear effects or mechanical reconfiguration and represents a step towards the implementation of reliable tunable subwavelength light sources.
通过全矢量三维模拟，提出并证明了对耦合到光子晶体腔的纳米棒等离子体天线中的光纳米聚焦进行主动控制。通过改变激光束光斑尺寸对腔的激发，我们能够实现对纳米天线尖端光纳米聚焦的逐步控制。所展示的控制机制无需非线性效应或机械重新配置，代表了朝着实现可靠的可调谐亚波长光源迈出的一步。
