Duty cycle dependency of the optical transmission spectrum in an ultrathin nanostructured Ag film
Duty cycle dependency of the optical transmission spectrum in an ultrathin nanostructured Ag film
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DOI：
10.1016/j.jallcom.2014.09.202
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发表时间：
2015-02
影响因子：
6.2
通讯作者：
Ye Ming;X. L. Hu;Luwei Sun;Shi Bin;Yuxiao Xu;Liusan Wang;Jiaoling Zhao;Wu Ya-ming;S. Yang;R. Z. Tai;J. Jiang;D. X. Zhang
中科院分区：
文献类型：
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作者：
Ye Ming;X. L. Hu;Luwei Sun;Shi Bin;Yuxiao Xu;Liusan Wang;Jiaoling Zhao;Wu Ya-ming;S. Yang;R. Z. Tai;J. Jiang;D. X. Zhang
在玻璃基板上沉积具有单一周期性图案金属薄膜结构的等离子体滤光片由于其易于制造、耐用和灵活的颜色可调性而成为一个有吸引力的研究热点。以往的研究主要集中在透射光谱的周期性、形状、厚度依赖性等方面。本文从理论和实验两方面研究了占空比对一维光栅超薄银膜透射光谱的影响。研究发现，通过改变占空比，可以在很大程度上调整传输最小值。讨论了银光栅在增大占空比和周期时透射谱衰减的物理机制。
Plasmonic color filters with a single periodically patterned metal film structure deposited on a glass substrate have been an attractive research hotspot due to its ease of fabrication, durability and flexible color tunability. Previous researches mostly focused on the periodicity, shape, thickness dependency of the transmission spectrum. Here, we both theoretically and experimentally studied the influence of duty cycle to the transmission spectrum of ultrathin Ag film patterned with one dimensional grating. It is found that the transmission minimum could be largely tuned by varying the duty cycle. The physical mechanism for the degradation of the transmission spectrum when increasing duty cycle and period of Ag grating has been discussed.