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The influences of particle number on hot spots in strongly coupled metal nanoparticles chain

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

Standard Standard

The influences of particle number on hot spots in strongly coupled metal nanoparticles chain. / Wang, Z.; Luk’yanchuk, B.S.; Guo, W. et al.
In: Journal of Chemical Physics, Vol. 128, No. 9, 07.03.2008, p. 094705.

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

HarvardHarvard

Wang, Z, Luk’yanchuk, BS, Guo, W, Edwardson, SP, Whitehead, DJ, Li, L & Watkins, KG 2008, 'The influences of particle number on hot spots in strongly coupled metal nanoparticles chain', Journal of Chemical Physics, vol. 128, no. 9, pp. 094705. https://doi.org/10.1063/1.2835598

APA

Wang, Z., Luk’yanchuk, B. S., Guo, W., Edwardson, S. P., Whitehead, D. J., Li, L., & Watkins, K. G. (2008). The influences of particle number on hot spots in strongly coupled metal nanoparticles chain. Journal of Chemical Physics, 128(9), 094705. https://doi.org/10.1063/1.2835598

CBE

Wang Z, Luk’yanchuk BS, Guo W, Edwardson SP, Whitehead DJ, Li L, Watkins KG. 2008. The influences of particle number on hot spots in strongly coupled metal nanoparticles chain. Journal of Chemical Physics. 128(9):094705. https://doi.org/10.1063/1.2835598

MLA

Wang, Z. et al. "The influences of particle number on hot spots in strongly coupled metal nanoparticles chain". Journal of Chemical Physics. 2008, 128(9). 094705. https://doi.org/10.1063/1.2835598

VancouverVancouver

Wang Z, Luk’yanchuk BS, Guo W, Edwardson SP, Whitehead DJ, Li L et al. The influences of particle number on hot spots in strongly coupled metal nanoparticles chain. Journal of Chemical Physics. 2008 Mar 7;128(9):094705. doi: 10.1063/1.2835598

Author

Wang, Z. ; Luk’yanchuk, B.S. ; Guo, W. et al. / The influences of particle number on hot spots in strongly coupled metal nanoparticles chain. In: Journal of Chemical Physics. 2008 ; Vol. 128, No. 9. pp. 094705.

RIS

TY - JOUR

T1 - The influences of particle number on hot spots in strongly coupled metal nanoparticles chain

AU - Wang, Z.

AU - Luk’yanchuk, B.S.

AU - Guo, W.

AU - Edwardson, S.P.

AU - Whitehead, D.J.

AU - Li, L.

AU - Watkins, K.G.

PY - 2008/3/7

Y1 - 2008/3/7

N2 - In understanding of the hot spot phenomenon in single-molecule surface enhanced Raman scattering (SM-SERS), the electromagnetic field within the gaps of dimers (i.e., two particle systems) has attracted much interest as it provides significant field amplification over single isolated nanoparticles. In addition to the existing understanding of the dimer systems, we show in this paper that field enhancement within the gaps of a particle chain could maximize at a particle number N>2, due to the near-field coupled plasmon resonance of the chain. This particle number effect was theoretically observed for the gold (Au) nanoparticles chain but not for the silver (Ag) chain. We attribute the reason to the different behaviors of the dissipative damping of gold and silver in the visible wavelength range. The reported effect can be utilized to design effective gold substrate for SM-SERS applications.

AB - In understanding of the hot spot phenomenon in single-molecule surface enhanced Raman scattering (SM-SERS), the electromagnetic field within the gaps of dimers (i.e., two particle systems) has attracted much interest as it provides significant field amplification over single isolated nanoparticles. In addition to the existing understanding of the dimer systems, we show in this paper that field enhancement within the gaps of a particle chain could maximize at a particle number N>2, due to the near-field coupled plasmon resonance of the chain. This particle number effect was theoretically observed for the gold (Au) nanoparticles chain but not for the silver (Ag) chain. We attribute the reason to the different behaviors of the dissipative damping of gold and silver in the visible wavelength range. The reported effect can be utilized to design effective gold substrate for SM-SERS applications.

U2 - 10.1063/1.2835598

DO - 10.1063/1.2835598

M3 - Article

VL - 128

SP - 094705

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 9

ER -