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Issue 30, 2015
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Improving the sensing performance of double gold gratings by oblique incident light

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Abstract

Here we demonstrate a simple method to improve the plasmonic sensing performance of gold gratings. The gratings consist of periodic polymer gratings covered with a gold layer, created by nanoimprint lithography and metal deposition. We investigated the effect of gold thickness and the incident angles on the plasmonic sensing performance. With the optimized gold layer, the full-width at half maximum of this grating was reduced by 60% by using the oblique incident light instead of the normal incident light. A maximum value of the figure of merit at oblique incidence is 12, which is double the one at normal incidence.

Graphical abstract: Improving the sensing performance of double gold gratings by oblique incident light

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Publication details

The article was received on 24 apr. 2015, accepted on 19 jún. 2015 and first published on 24 jún. 2015


Article type: Paper
DOI: 10.1039/C5NR02660A
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Citation: Nanoscale, 2015,7, 13026-13032
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    Improving the sensing performance of double gold gratings by oblique incident light

    F. Wu, L. Liu, L. Feng, D. Xu and N. Lu, Nanoscale, 2015, 7, 13026
    DOI: 10.1039/C5NR02660A

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