Vol 9: Ultrahigh refractive index sensing performance of plasmonic quadrupole resonances in gold nanoparticles.Reportar como inadecuado



 Vol 9: Ultrahigh refractive index sensing performance of plasmonic quadrupole resonances in gold nanoparticles.


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This article is from Nanoscale Research Letters, volume 9.AbstractThe refractive index sensing properties of plasmonic resonances in gold nanoparticles nanorods and nanobipyramids are investigated through numerical simulations. We find that the quadruple resonance in both nanoparticles shows much higher sensing figure of merit FOM than its dipolar counterpart, which is attributed mainly to the reduction in resonance linewidth. More importantly, our results predict that at the same sensing wavelength, the sensing FOM of the quadrupole mode can be significantly boosted from 3.9 for gold nanorods to 7.4 for gold nanobipyramids due to the geometry-dependent resonance linewidth, revealing a useful strategy for optimizing the sensing performance of metal nanoparticles.



Autor: Yong, Zehui; Lei, Dang Yuan; Lam, Chi Hang; Wang, Yu

Fuente: https://archive.org/







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