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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4823–4826

Lattice plasmon resonance in core-shell SiO2/Au nanocylinder arrays

Linhan Lin and Yasha Yi  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4823-4826 (2014)
http://dx.doi.org/10.1364/OL.39.004823


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Abstract

Core-shell SiO2/Au nanocylinder arrays (NCAs) are studied using finite-difference time-domain simulations. The increase of height induces new surface plasmon resonances along the nanocylinders, i.e., dipole and quadrupole modes. Orthogonal coupling between superstrate diffraction order and the height-induced dipole mode is observed, which could achieve a well-defined lattice plasmon mode even for smaller NCAs in asymmetric environments. Electromagnetic field distribution has been employed to determine the coupling origin. Radiative loss could also be effectively suppressed in these core-shell NCAs, indicating the possibility of future applications in fluorescence enhancement and nanolasers.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(260.5740) Physical optics : Resonance
(160.4236) Materials : Nanomaterials

ToC Category:
Physical Optics

History
Original Manuscript: June 6, 2014
Revised Manuscript: July 10, 2014
Manuscript Accepted: July 10, 2014
Published: August 12, 2014

Virtual Issues
Vol. 9, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Linhan Lin and Yasha Yi, "Lattice plasmon resonance in core-shell SiO2/Au nanocylinder arrays," Opt. Lett. 39, 4823-4826 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4823

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