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arXiv 0802.1359physics.optics
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大面积金属纳米开口环阵列的压印制备与表征

Fabrication and Characterization of Large Area Metallic Nano-Split-Ring Arrays by Nanoimprint Lithography

Can Peng, Shufeng Bai, Stephen Y. Chou

摘要:

提出了一种利用纳米压印光刻(NIL)并行制作大面积(圆片级)金属纳米开口环阵列的方法。据我们所知,这是第一个可以形成大面积、高密度金属开口环阵列的方法,具有高通量、低成本和简单的优点。这种方法使金属纳米裂环阵列,这是某种概念之前,实际上是有用的。测量了不同参数下制备的金纳米开口环阵列的光学性能。它们对入射光表现出非常明显的磁响应(透射光谱消光比为10dB)。该方法制备的结构可以在光学范围内产生磁响应,且具有较大的特征尺寸,从而放宽了光刻对分辨率的要求。

英文摘要:

This paper presents a novel method to parallel fabricate large area (wafer scale) metallic nano-split-ring arrays with nanoimprint lithography (NIL). To our knowledge it is the first method that can pattern large area and high dense metallic split-ring arrays with advantages of high throughput, low-cost and simplicity. This method makes metallic nano-split-ring arrays, which was somehow conceptual before, practically useful. The optical properties of the fabricated gold nano-split-ring arrays with different parameters were measured. They show very obvious magnetic response to the incident light (which shows 10dB extinction ration in transmission spectra). The structure fabricated by this method can generate magnetic response in optical range with relatively large feature size that relax the requirement of resolution on lithography.

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