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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) April 13, 2018

Coupled Plasmon Resonances and Gap Modes in Laterally Assembled Gold Nanorod Arrays

  • Jatish Kumar , Xingzhan Wei , Steven J. Barrow , Alison M. Funston , K. George Thomas and Paul Mulvaney EMAIL logo


The assembly of metal nanocrystals offers a flexible method for creating new materials with tunable, size-dependent optical properties. Here we study the lateral assembly of gold nanorods into arrays, which leads to strong colour changes due to surface plasmon coupling. We also demonstrate the first example of gap modes in colloid systems, an optical mode in which light waves propagate in the channels between the gold rods. Such modes resonate at wavelengths which strongly depend on the gap width and length.


The authors thank the ARC for support through grants LF11000117 and CE170100026.


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Supplementary Material:

The online version of this article offers supplementary material (

Received: 2018-02-21
Accepted: 2018-03-14
Published Online: 2018-04-13
Published in Print: 2018-08-28

©2018 Walter de Gruyter GmbH, Berlin/Boston

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