Abstract
This paper describes three ways to tune the multipolar surface plasmon resonances of Au pyramidal particles: (1) by varying their thickness; (2) by controlling their relative orientation on a surface; and (3) by changing the refractive index of the surrounding media. We found that as the index of the medium was increased that the plasmon resonances red-shifted linearly from visible to near-infrared wavelengths. By screening the different geometric parameters, we found that 25-nm thick pyramids in a tip-up orientation produced the largest refractive index sensitivities.
| Original language | English |
|---|---|
| Pages (from-to) | 2205-2207 |
| Number of pages | 3 |
| Journal | Journal of Physical Chemistry C |
| Volume | 113 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Feb 12 2009 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
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Lee, J., Hasan, W., & Odom, T. W. (2009). Tuning the thickness and orientation of single au pyramids for improved refractive index sensitivities. Journal of Physical Chemistry C, 113(6), 2205-2207. https://doi.org/10.1021/jp8111155