Curved Surface Plasmon Polariton Excitation With Shaped Beam by Fifth-Power Phase Mask
Curved Surface Plasmon Polariton Excitation With Shaped Beam by Fifth-Power Phase Mask
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DOI：
10.1109/jphot.2015.2503240
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发表时间：
2015-12-01
影响因子：
2.4
通讯作者：
Mi, Wenbo
中科院分区：
文献类型：
--
作者：
Kuang, Dengfeng;Cao, Yanyan;Mi, Wenbo
我们通过实验证明了一种新颖而简单的方法来激发银纳米膜上的曲面等离子激元极化子。我们在空间光调制器上施加五次方相位掩模，激发由银纳米粒子组成的银纳米膜上的表面等离子激元，在傅里叶平面上产生了一束艾里形光束。用泄漏辐射显微镜记录了表面等离子体激元轨迹的强度分布，表明在银纳米膜上产生了等离子体多项式光束。这种方法提供了相对商业化和动态操作的曲面等离子激元极化子在贵金属纳米膜上。
We experimentally demonstrate a novel and simple method for the excitation of a curved surface plasmon polariton on a silver nanofilm. We generated an Airy- like shaped beam in the Fourier plane by using a fifth-power phase mask imposed on a spatial light modulator to excite surface plasmon polariton on the silver nanofilm consisting of silver nanoparticles. The intensity distribution of the surface plasmon polariton trajectories was recorded by the leakage radiation microscope, which indicates that a plasmonic polynomial beam is produced on the silver nanofilm. This method provides relatively commercial and dynamic manipulation of a curved surface plasmon polariton on a noble metallic nanofilm.