Abstract

We present what we believe to be the first experimental study of the optical response of collective plasmon resonances in regular arrays of nanoresonators to local environment. Recently observed collective plasmon modes arise due to diffractive coupling of localized plasmons and yield almost 1 order of magnitude improvement in resonance quality. We measure the response of these modes to tiny variations of the refractive index of both gaseous and liquid media. We show that the phase sensitivity of the collective resonances can be more than 2 orders of magnitude better than the best amplitude sensitivity of the same nanodot array as well as 1 order of magnitude better than the phase sensitivity in surface plasmon resonance sensors.

© 2010 Optical Society of America

Plasmonic resonances in optomagnetic metamaterials based on double dot arrays.

Vasyl G. Kravets, Fred Schedin, Shaun Taylor, David Viita, and Alexander N. Grigorenko
Opt. Express 18(10) 9780-9790 (2010)

Polarization-selective grating excitation of plasmons in cylindrical optical fibers

Y. Shevchenko, C. Chen, M. A. Dakka, and J. Albert
Opt. Lett. 35(5) 637-639 (2010)

Surface plasmon coupling enhanced dielectric environment sensitivity in a quasi-three-dimensional metallic nanohole array

Yuanyuan Li, Jian Pan, Peng Zhan, Shining Zhu, Naiben Ming, Zhenlin Wang, Wenda Han, Xunya Jiang, and Jian Zi
Opt. Express 18(4) 3546-3555 (2010)

Hybrid waveguide-plasmon resonances in gold pillar arrays on top of a dielectric waveguide

Jing Zhang, Likang Cai, Wenli Bai, and Guofeng Song
Opt. Lett. 35(20) 3408-3410 (2010)

Differential phase-detecting localized surface plasmon resonance sensor with self-assembly gold nano-islands

Guangyu Qiu, Siu Pang Ng, and Chi Man Lawrence Wu
Opt. Lett. 40(9) 1924-1927 (2015)