Abstract
An extremely high localized surface plasmon resonance (LSPR) is generated at the small gap between a gold (Au) nanoparticle and an Au thin film. The conventional LSPR of the film-coupled nanoparticle gives a narrow bandwidth, and it causes low efficiency from the energy harvesting point of view. In this study, we obtained a primary shape of the nanoparticle that works for the field enhancement in the broadband visible spectrum by using topology optimization combined with the concept of the probability density function. We confirmed that the derived elliptical hole and the thin layer at the lower nanoparticle part lead to a broad visible spectrum from blue to red range.
| Original language | English |
|---|---|
| Article number | 201904 |
| Journal | Applied Physics Letters |
| Volume | 108 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 2016 May 16 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
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Topological design of the film-coupled nanoparticle for the field intensity enhancement over the broadband visible spectrum. / Seong, H. K.; Yoo, Jeonghoon.
In: Applied Physics Letters, Vol. 108, No. 20, 201904, 16.05.2016.Research output: Contribution to journal › Article
TY - JOUR
T1 - Topological design of the film-coupled nanoparticle for the field intensity enhancement over the broadband visible spectrum
AU - Seong, H. K.
AU - Yoo, Jeonghoon
PY - 2016/5/16
Y1 - 2016/5/16
N2 - An extremely high localized surface plasmon resonance (LSPR) is generated at the small gap between a gold (Au) nanoparticle and an Au thin film. The conventional LSPR of the film-coupled nanoparticle gives a narrow bandwidth, and it causes low efficiency from the energy harvesting point of view. In this study, we obtained a primary shape of the nanoparticle that works for the field enhancement in the broadband visible spectrum by using topology optimization combined with the concept of the probability density function. We confirmed that the derived elliptical hole and the thin layer at the lower nanoparticle part lead to a broad visible spectrum from blue to red range.
AB - An extremely high localized surface plasmon resonance (LSPR) is generated at the small gap between a gold (Au) nanoparticle and an Au thin film. The conventional LSPR of the film-coupled nanoparticle gives a narrow bandwidth, and it causes low efficiency from the energy harvesting point of view. In this study, we obtained a primary shape of the nanoparticle that works for the field enhancement in the broadband visible spectrum by using topology optimization combined with the concept of the probability density function. We confirmed that the derived elliptical hole and the thin layer at the lower nanoparticle part lead to a broad visible spectrum from blue to red range.
UR - http://www.scopus.com/inward/record.url?scp=84969961945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84969961945&partnerID=8YFLogxK
U2 - 10.1063/1.4950857
DO - 10.1063/1.4950857
M3 - Article
VL - 108
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 20
M1 - 201904
ER -