Nonlinear resonance-enhanced excitation of surface plasmon polaritons.
Nonlinear resonance-enhanced excitation of surface plasmon polaritons.
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DOI：
10.1364/ol.36.000855
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发表时间：
2011-03
期刊：
影响因子：
3.6
通讯作者：
Chunhua Xue;Haitao Jiang;Hong Chen
中科院分区：
文献类型：
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作者：
Chunhua Xue;Haitao Jiang;Hong Chen
我们从理论上研究了一维光子晶体包裹的金属中表面等离子体激元的非线性共振增强激发。在这种结构中，可以直接激发空气光线上方的隧道模。然后，通过非线性四波混频，在适当的参数下，实现了隧道模与表面等离子体激元之间的光子能量守恒和动量守恒。与块状金属中表面等离子体激元的非线性激发相比[Phys.莱特牧师。103,266802(2009年)]，我们的结构中的转换效率显著提高。
We theoretically investigate nonlinear resonance-enhanced excitation of surface plasmon polaritons in a metal coated by a one-dimensional photonic crystal. Tunneling modes above the air-light line can be directly excited in this structure. Then, with suitable parameters, photon energy and momentum conservation between the tunneling mode and the surface plasmon polaritons can be realized by means of nonlinear four-wave mixing. Compared with the nonlinear excitation of surface plasmon polaritons in a bulk metal [Phys. Rev. Lett. 103, 266802 (2009)], the conversion efficiency in our structure is noticeably enhanced.