Spaser based on Fano resonance in a rod and concentric square ring-disk nanostructure

Y. Y. Huo; T. Q. Jia; Y. Zhang; H. Zhao; S. A. Zhang; D. H. Feng; Z. R. Sun

doi:10.1063/1.4868867

Spaser based on Fano resonance in a rod and concentric square ring-disk nanostructure

Y. Y. Huo
, T. Q. Jia
, Y. Zhang
, H. Zhao
, S. A. Zhang
, D. H. Feng
, Z. R. Sun

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

This paper reports a spaser based on Fano resonance of a plasmonic nanostructure consisting of a rod and concentric square ring-disk structure coated with a layer of gain media. The amplification of the dark quadrupolar mode at the Fano resonance wavelength causes the spaser with a high Purcell factor of 3.24 × 10⁷, a high signal to noise ratio of 4.4 × 10⁶, and a lower threshold of 0.02086. These significant optical properties are attributed to the greatly enhanced spontaneous emission and depressed radiation loss supported by the strong localized dark mode at the Fano resonance wavelength.

Original language	English
Article number	113104
Journal	Applied Physics Letters
Volume	104
Issue number	11
DOIs	https://doi.org/10.1063/1.4868867
State	Published - 17 Mar 2014

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title = "Spaser based on Fano resonance in a rod and concentric square ring-disk nanostructure",

abstract = "This paper reports a spaser based on Fano resonance of a plasmonic nanostructure consisting of a rod and concentric square ring-disk structure coated with a layer of gain media. The amplification of the dark quadrupolar mode at the Fano resonance wavelength causes the spaser with a high Purcell factor of 3.24 × 107, a high signal to noise ratio of 4.4 × 106, and a lower threshold of 0.02086. These significant optical properties are attributed to the greatly enhanced spontaneous emission and depressed radiation loss supported by the strong localized dark mode at the Fano resonance wavelength.",

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AU - Huo, Y. Y.

AU - Jia, T. Q.

AU - Zhang, Y.

AU - Zhao, H.

AU - Zhang, S. A.

AU - Feng, D. H.

AU - Sun, Z. R.

PY - 2014/3/17

Y1 - 2014/3/17

N2 - This paper reports a spaser based on Fano resonance of a plasmonic nanostructure consisting of a rod and concentric square ring-disk structure coated with a layer of gain media. The amplification of the dark quadrupolar mode at the Fano resonance wavelength causes the spaser with a high Purcell factor of 3.24 × 107, a high signal to noise ratio of 4.4 × 106, and a lower threshold of 0.02086. These significant optical properties are attributed to the greatly enhanced spontaneous emission and depressed radiation loss supported by the strong localized dark mode at the Fano resonance wavelength.

AB - This paper reports a spaser based on Fano resonance of a plasmonic nanostructure consisting of a rod and concentric square ring-disk structure coated with a layer of gain media. The amplification of the dark quadrupolar mode at the Fano resonance wavelength causes the spaser with a high Purcell factor of 3.24 × 107, a high signal to noise ratio of 4.4 × 106, and a lower threshold of 0.02086. These significant optical properties are attributed to the greatly enhanced spontaneous emission and depressed radiation loss supported by the strong localized dark mode at the Fano resonance wavelength.

UR - https://www.scopus.com/pages/publications/84897904992

U2 - 10.1063/1.4868867

DO - 10.1063/1.4868867

M3 - 文章

AN - SCOPUS:84897904992

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 113104

ER -

Spaser based on Fano resonance in a rod and concentric square ring-disk nanostructure

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