Effects of refractive index of mixed solution on localized surface plasmon resonance

Zhang Yang; Peng Yang; Hou Jing; Jiang Zongfu

doi:10.3788/HPLPB20132502.0500

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 500-504

Jia Rui, Wang Qingguo, Wang Shuqiao, et al. Model of field-to-line coupling in a reverberation chamber based on transmission line theory[J]. High Power Laser and Particle Beams, 2014, 26: 014006. doi: 10.3788/HPLPB201426.014006

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Zhang Yang, Peng Yang, Hou Jing, et al. Effects of refractive index of mixed solution on localized surface plasmon resonance[J]. High Power Laser and Particle Beams, 2013, 25: 500-504. doi: 10.3788/HPLPB20132502.0500

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Effects of refractive index of mixed solution on localized surface plasmon resonance

doi: 10.3788/HPLPB20132502.0500

1.
College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China

Received Date: 2012-05-26
Rev Recd Date: 2012-08-28
Publish Date: 2013-02-10

Abstract

Abstract

The relations of the mass fraction and temperature of mixtures of water and dimethyl sulphoxide (DMSO) to refractive index are theoretically and experimentally studied. The empirical formula fit for calculating the refractive index of the mixture is chosen by comparing the simulation results of several classical models. Then the effects of mass fraction and temperature of the mixture of aqueous gold colloids and DMSO on localized surface plasmon resonance are studied. The theoretical and experimental results show that the mass fraction of the mixture of aqueous gold colloids and DSMO has linear relationship with the resonance wavelength of localized surface plasmon in a large range. The resonance wavelength of the mixed gold colloids increases by 1367 pm when the temperature increases from 20 ℃ to 60 ℃, and its temperature sensitivity is 34 pm/K. The increase of resonance wavelength with mass fraction is 8.5103 pm in a 0-100% mass fraction range.
- optics at surface,
- localized surface plasmon resonance,
- refractive index,
- mass fraction,
- temperature

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