Nanoimprint fabrication of gold nanocones with ∼10 nm tips for enhanced optical interactions

Nanoimprint fabrication of gold nanocones with ∼10 nm tips for enhanced optical interactions
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DOI:
10.1364/ol.34.001979
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发表时间:
2009-07-01
期刊:
影响因子:
3.6
通讯作者:
Kauranen, Martti
Kauranen, Martti
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Kontio, Juha M.;Husu, Hannu;Kauranen, Martti

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我们表明,nanoimprnit,光刻结合电子束蒸发提供了一个具有成本效益的,快速的,可重复的方法来制造圆锥形的纳米结构,非常尖锐的尖端在平面上的高容量。我们证明了该方法,通过制备一个晶圆级的at-射线的金纳米锥的平均尖端半径为5 nm。强的局部领域的尖端提高了超过2个数量级的非尖锐的参考相比,二次谐波的产生。(C)2009年美国光学学会
We show that nanoimprnit, lithography combined with electron-beam evaporation provides a cost-efficient, rapid, and reproducible method to fabricate conical nanostructures with very sharp tips on flat surfaces in high volumes. We demonstrate the method by preparing a wafer-scale at-ray of gold nanocones with an average tip radius of 5 nm. Strong local fields at the tips enhance the second-harmonic generation by over 2 orders of magnitude compared with a nonsharp reference. (C) 2009 Optical Society of America