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
中科院分区:
文献类型:
--
作者:
Kontio, Juha M.;Husu, Hannu;Kauranen, Martti
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