Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1527-1530 |
| Seitenumfang | 4 |
| Fachzeitschrift | Optics letters |
| Jahrgang | 45 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - 12 März 2020 |
Abstract
To construct a dielectric analog of a spaser, we study several configurations of cluster-based unit cells for an all-dielectric metasurface characterized by resonant conditions of the trapped mode excitation. Excitation of the trapped mode is realized by performing either specific displacement of particles in the cluster or perturbation of the equidistantly spaced particles by off-centered holes. The latter approach is more advantageous for enhancement of the electric near-field with homogeneous distribution in-plane of the structure and strong field localization outside the high-refractive-index dielectric particles. This feature opens prospects for realization of subwavelength flat lasing structures based on strong near-field interaction with substances exhibiting nonlinear characteristics and properties of gain media.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Optics letters, Jahrgang 45, Nr. 6, 12.03.2020, S. 1527-1530.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Homogeneous enhancement of near-fields in all-dielectric metasurfaces with cluster-based unit cells
AU - Kupriiannov, A. S.
AU - Domina, K. L.
AU - Khardikov, V. V.
AU - Evlyukhin, A. B.
AU - Tuz, V. R.
PY - 2020/3/12
Y1 - 2020/3/12
N2 - To construct a dielectric analog of a spaser, we study several configurations of cluster-based unit cells for an all-dielectric metasurface characterized by resonant conditions of the trapped mode excitation. Excitation of the trapped mode is realized by performing either specific displacement of particles in the cluster or perturbation of the equidistantly spaced particles by off-centered holes. The latter approach is more advantageous for enhancement of the electric near-field with homogeneous distribution in-plane of the structure and strong field localization outside the high-refractive-index dielectric particles. This feature opens prospects for realization of subwavelength flat lasing structures based on strong near-field interaction with substances exhibiting nonlinear characteristics and properties of gain media.
AB - To construct a dielectric analog of a spaser, we study several configurations of cluster-based unit cells for an all-dielectric metasurface characterized by resonant conditions of the trapped mode excitation. Excitation of the trapped mode is realized by performing either specific displacement of particles in the cluster or perturbation of the equidistantly spaced particles by off-centered holes. The latter approach is more advantageous for enhancement of the electric near-field with homogeneous distribution in-plane of the structure and strong field localization outside the high-refractive-index dielectric particles. This feature opens prospects for realization of subwavelength flat lasing structures based on strong near-field interaction with substances exhibiting nonlinear characteristics and properties of gain media.
UR - http://www.scopus.com/inward/record.url?scp=85081331393&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1909.09525
DO - 10.48550/arXiv.1909.09525
M3 - Article
C2 - 32164008
AN - SCOPUS:85081331393
VL - 45
SP - 1527
EP - 1530
JO - Optics letters
JF - Optics letters
SN - 0146-9592
IS - 6
ER -