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 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Energy(all)
Cite this
Tuning the thickness and orientation of single au pyramids for improved refractive index sensitivities. / Lee, Jeunghoon; Hasan, Warefta; Odom, Teri W.
In: Journal of Physical Chemistry C, Vol. 113, No. 6, 12.02.2009, p. 2205-2207.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tuning the thickness and orientation of single au pyramids for improved refractive index sensitivities
AU - Lee, Jeunghoon
AU - Hasan, Warefta
AU - Odom, Teri W
PY - 2009/2/12
Y1 - 2009/2/12
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=65249190254&partnerID=8YFLogxK
U2 - 10.1021/jp8111155
DO - 10.1021/jp8111155
M3 - Article
VL - 113
SP - 2205
EP - 2207
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 6
ER -