Abstract
We present a quasi-static model of the electromagnetic interaction between dipolar emitting molecule and a Plasmon-metal nano-sphere. Based on the image theory of dielectric sphere, we model the Plasmon nano-spheres by off-centered dipole images. The retardation effect is taken into account by electrodynamical modifications on spherical polarizability and dipole radiation field. The modifications of the radiative rate, total decay rate and the quantum yield for the molecules are derived. The image model indicates the strong distance dependence of the enhancement on both radiative and total decay rates. The comparison with the exact electrodynamical model and other simplified models indicate that the off-center image provide accurate predictions on radiative and total decay rates, even in close distances.
| Original language | English (US) |
|---|---|
| Title of host publication | Colloidal Nanocrystals for Biomedical Applications VIII |
| Volume | 8595 |
| DOIs | |
| State | Published - May 30 2013 |
| Event | Colloidal Nanocrystals for Biomedical Applications VIII - San Francisco, CA, United States Duration: Feb 2 2013 → Feb 4 2013 |
Other
| Other | Colloidal Nanocrystals for Biomedical Applications VIII |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 2/2/13 → 2/4/13 |
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Keywords
- fluorescence enhancement
- image theory
- Plasmon sphere
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Biomaterials
- Radiology Nuclear Medicine and imaging
Cite this
Image theory for plasmon-modified luminescence near nanospheres. / Zhang, Zhe; Lim, Derrick; Diaz, Rodolfo.
Colloidal Nanocrystals for Biomedical Applications VIII. Vol. 8595 2013. 859508.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Image theory for plasmon-modified luminescence near nanospheres
AU - Zhang, Zhe
AU - Lim, Derrick
AU - Diaz, Rodolfo
PY - 2013/5/30
Y1 - 2013/5/30
N2 - We present a quasi-static model of the electromagnetic interaction between dipolar emitting molecule and a Plasmon-metal nano-sphere. Based on the image theory of dielectric sphere, we model the Plasmon nano-spheres by off-centered dipole images. The retardation effect is taken into account by electrodynamical modifications on spherical polarizability and dipole radiation field. The modifications of the radiative rate, total decay rate and the quantum yield for the molecules are derived. The image model indicates the strong distance dependence of the enhancement on both radiative and total decay rates. The comparison with the exact electrodynamical model and other simplified models indicate that the off-center image provide accurate predictions on radiative and total decay rates, even in close distances.
AB - We present a quasi-static model of the electromagnetic interaction between dipolar emitting molecule and a Plasmon-metal nano-sphere. Based on the image theory of dielectric sphere, we model the Plasmon nano-spheres by off-centered dipole images. The retardation effect is taken into account by electrodynamical modifications on spherical polarizability and dipole radiation field. The modifications of the radiative rate, total decay rate and the quantum yield for the molecules are derived. The image model indicates the strong distance dependence of the enhancement on both radiative and total decay rates. The comparison with the exact electrodynamical model and other simplified models indicate that the off-center image provide accurate predictions on radiative and total decay rates, even in close distances.
KW - fluorescence enhancement
KW - image theory
KW - Plasmon sphere
UR - http://www.scopus.com/inward/record.url?scp=84878181276&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878181276&partnerID=8YFLogxK
U2 - 10.1117/12.2004164
DO - 10.1117/12.2004164
M3 - Conference contribution
AN - SCOPUS:84878181276
SN - 9780819493644
VL - 8595
BT - Colloidal Nanocrystals for Biomedical Applications VIII
ER -