Dependence of LC resonance wavelength on size of silver split-ring resonator fabricated by nanosphere lithography
Dependence of LC resonance wavelength on size of silver split-ring resonator fabricated by nanosphere lithography
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DOI：
10.1364/oe.20.024059
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发表时间：
2012-10-08
期刊：
影响因子：
3.8
通讯作者：
Haraguchi, Masanobu
中科院分区：
文献类型：
--
作者：
Okamoto, Toshihiro;Otsuka, Tomoya;Haraguchi, Masanobu
利用纳米微球光刻技术制备了银开口环谐振器，并测量了单个孤立的开口环谐振器在光波长范围内的LC谐振波长。当使用较小的聚苯乙烯球作为模板时，SRRs的尺寸减小，并且它们的LC共振波长降低到721 nm。利用LC电路模型计算了与观测到的SRRs特性相对应的LC谐振波长，并证实了观测结果与计算结果的一致性。计算了一个恒定形状的小型化SRR的LC谐振频率。对于我们制造的形状的SRR，估计的短波长极限为426 nm。(C)2012美国光学学会
We fabricated silver split-ring resonators (SRRs) using nanosphere lithography and measured the LC resonance wavelength of single isolated SRRs in optical wavelength range. The SRRs' sizes decreased when smaller polystyrene spheres were used as templates, and their LC resonance wavelength decreased to 721 nm. The LC resonance wavelength corresponding to the observed properties of the SRRs was calculated using the LC circuit model; we confirmed that the observational and calculated results agreed well. The LC resonance frequency of a miniaturized SRR with a constant shape was also calculated. For SRRs of the shape that we fabricated, the estimated short-wavelength limit was 426 nm. (C) 2012 Optical Society of America