Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 1423-1428 |
Seitenumfang | 6 |
Fachzeitschrift | ACS PHOTONICS |
Jahrgang | 2 |
Ausgabenummer | 10 |
Publikationsstatus | Veröffentlicht - 25 Sept. 2015 |
Extern publiziert | Ja |
Abstract
We study, both numerically and analytically, the effect of a substrate on the optical properties of high-refractive-index dielectric nanoparticles. We demonstrate that the optical response of subwavelength nanoparticles can be effectively modeled in the dipole approximation when the dielectric particle is replaced by a pair of point electric and magnetic dipoles with modified polarizabilities. Based on our model, we reveal the existence of the substrate-induced bianisotropic interaction (magnetoelectric coupling) between electric and magnetic dipole modes, which is strongly enhanced near the corresponding dipole resonances. This results in a specific feature of the radiation pattern that can be employed to identify the effective bianisotropic interaction experimentally.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Biochemie, Genetik und Molekularbiologie (insg.)
- Biotechnologie
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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in: ACS PHOTONICS, Jahrgang 2, Nr. 10, 25.09.2015, S. 1423-1428.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Substrate-Induced Resonant Magnetoelectric Effects for Dielectric Nanoparticles
AU - Miroshnichenko, Andrey E.
AU - Evlyukhin, Andrey B.
AU - Kivshar, Yuri S.
AU - Chichkov, Boris N.
PY - 2015/9/25
Y1 - 2015/9/25
N2 - We study, both numerically and analytically, the effect of a substrate on the optical properties of high-refractive-index dielectric nanoparticles. We demonstrate that the optical response of subwavelength nanoparticles can be effectively modeled in the dipole approximation when the dielectric particle is replaced by a pair of point electric and magnetic dipoles with modified polarizabilities. Based on our model, we reveal the existence of the substrate-induced bianisotropic interaction (magnetoelectric coupling) between electric and magnetic dipole modes, which is strongly enhanced near the corresponding dipole resonances. This results in a specific feature of the radiation pattern that can be employed to identify the effective bianisotropic interaction experimentally.
AB - We study, both numerically and analytically, the effect of a substrate on the optical properties of high-refractive-index dielectric nanoparticles. We demonstrate that the optical response of subwavelength nanoparticles can be effectively modeled in the dipole approximation when the dielectric particle is replaced by a pair of point electric and magnetic dipoles with modified polarizabilities. Based on our model, we reveal the existence of the substrate-induced bianisotropic interaction (magnetoelectric coupling) between electric and magnetic dipole modes, which is strongly enhanced near the corresponding dipole resonances. This results in a specific feature of the radiation pattern that can be employed to identify the effective bianisotropic interaction experimentally.
KW - dyadic Green's function
KW - magnetoelectric coupling
KW - multipole expansion
KW - substrate-induced bianisotropy
UR - http://www.scopus.com/inward/record.url?scp=84945926435&partnerID=8YFLogxK
U2 - 10.1021/acsphotonics.5b00117
DO - 10.1021/acsphotonics.5b00117
M3 - Article
AN - SCOPUS:84945926435
VL - 2
SP - 1423
EP - 1428
JO - ACS PHOTONICS
JF - ACS PHOTONICS
SN - 2330-4022
IS - 10
ER -