期刊
OPTICS EXPRESS
卷 19, 期 7, 页码 5888-5894出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.005888
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资金
- Australian Research Council
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. (c) 2011 Optical Society of America
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