Efficient surface plasmon amplification from gain-assisted gold nanorods

Si Yun Liu; Jiafang Li; Fei Zhou; Lin Gan; Zhi Yuan Li

doi:10.1364/OL.36.001296

Efficient surface plasmon amplification from gain-assisted gold nanorods

Si Yun Liu^*, Jiafang Li, Fei Zhou, Lin Gan, Zhi Yuan Li

^*Corresponding author for this work

CAS - Institute of Physics

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

98 Citations (Scopus)

Abstract

We report on the efficient surface plasmon amplification by stimulated emission of radiation (spaser) from a gold nanorod coated with proper gain media. Numerical simulations show that the threshold of the nanorodbased spaser is nearly 1 order of magnitude lower than that of the core-shell nanosphere, which is verified by analysis with electrostatic theory. Furthermore, it is found that the nanorod-based nanosystem possesses unique optical properties such as wavelength tunability and polarization sensitivity.

Original language	English
Pages (from-to)	1296-1298
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	7
DOIs	https://doi.org/10.1364/OL.36.001296
Publication status	Published - 1 Apr 2011
Externally published	Yes

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Liu, S. Y., Li, J., Zhou, F., Gan, L., & Li, Z. Y. (2011). Efficient surface plasmon amplification from gain-assisted gold nanorods. Optics Letters, 36(7), 1296-1298. https://doi.org/10.1364/OL.36.001296

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AB - We report on the efficient surface plasmon amplification by stimulated emission of radiation (spaser) from a gold nanorod coated with proper gain media. Numerical simulations show that the threshold of the nanorodbased spaser is nearly 1 order of magnitude lower than that of the core-shell nanosphere, which is verified by analysis with electrostatic theory. Furthermore, it is found that the nanorod-based nanosystem possesses unique optical properties such as wavelength tunability and polarization sensitivity.

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Efficient surface plasmon amplification from gain-assisted gold nanorods

Abstract

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