Journal
NANO LETTERS
Volume 17, Issue 11, Pages 7152-7159Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b04200
Keywords
SNOM; anapole; multipole decomposition; near-field microscopy; all-dielectric nanoparticle
Categories
Funding
- Deutsche Forschungsgemeinschaft (Germany) [EV 220/2-1]
- Russian Science Foundation (Russian Federation) [16-12-10287]
- University of Southern Denmark (SDU funding)
- Villum Fonden (DarkSILD project)
- European Research Council [341054]
- Villum Fonden [00011116] Funding Source: researchfish
- Russian Science Foundation [16-12-10287] Funding Source: Russian Science Foundation
Ask authors/readers for more resources
Anapole states associated with the resonant suppression of electric-dipole scattering exhibit minimized extinction and maximized storage of electromagnetic energy inside a particle. Using numerical simulations, optical extinction spectroscopy, and amplitude-phase near-field mapping of silicon dielectric disks, we demonstrate high-order anapole states in the near-infrared wavelength range (900-1700 nm). We develop the procedure for unambiguously identifying anapole states by monitoring the normal component of the electric near-field and experimentally detect the first two anapole states as verified by far-field extinction spectroscopy and confirmed with the numerical simulations. We demonstrate that higher-order anapole states possess stronger energy concentration and narrower resonances, a remarkable feature that is advantageous for their applications in metasurfaces and nanophotonics components, such as nonlinear higher-harmonic generators and nanoscale lasers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available