Tunability of the refractive index of gold nanoparticle dispersions

Shoichi Kubo, Andres Diaz, Yan Tang, Theresa S. Mayer, Iam Choon Khoo, Thomas E. Mallouk

Research output: Contribution to journalArticle

125 Citations (Scopus)

Abstract

Alkanethiol-capped gold nanoparticles dispersed in n-dodecane were studied by spectroscopic ellipsometry and were modeled using Mie scattering theory. The refractive index in the visible and near-infrared depended on the volume fraction of gold nanoparticles, in good agreement with the theoretical expectation that such dispersed plasmonic nanoparticles can act as low or tunable refractive index materials at specific optical wavelengths.

Original languageEnglish (US)
Pages (from-to)3418-3423
Number of pages6
JournalNano letters
Volume7
Issue number11
DOIs
StatePublished - Nov 1 2007

Fingerprint

Dispersions
Gold
Refractive index
refractivity
gold
Nanoparticles
nanoparticles
Spectroscopic ellipsometry
Mie scattering
ellipsometry
Volume fraction
Scattering
Infrared radiation
Wavelength
wavelengths

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Kubo, S., Diaz, A., Tang, Y., Mayer, T. S., Khoo, I. C., & Mallouk, T. E. (2007). Tunability of the refractive index of gold nanoparticle dispersions. Nano letters, 7(11), 3418-3423. https://doi.org/10.1021/nl071893x
Kubo, Shoichi ; Diaz, Andres ; Tang, Yan ; Mayer, Theresa S. ; Khoo, Iam Choon ; Mallouk, Thomas E. / Tunability of the refractive index of gold nanoparticle dispersions. In: Nano letters. 2007 ; Vol. 7, No. 11. pp. 3418-3423.
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Kubo, S, Diaz, A, Tang, Y, Mayer, TS, Khoo, IC & Mallouk, TE 2007, 'Tunability of the refractive index of gold nanoparticle dispersions', Nano letters, vol. 7, no. 11, pp. 3418-3423. https://doi.org/10.1021/nl071893x

Tunability of the refractive index of gold nanoparticle dispersions. / Kubo, Shoichi; Diaz, Andres; Tang, Yan; Mayer, Theresa S.; Khoo, Iam Choon; Mallouk, Thomas E.

In: Nano letters, Vol. 7, No. 11, 01.11.2007, p. 3418-3423.

Research output: Contribution to journalArticle

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