Details
| Original language | English |
|---|---|
| Pages (from-to) | 7152-7159 |
| Number of pages | 8 |
| Journal | Nano letters |
| Volume | 17 |
| Issue number | 11 |
| Publication status | Published - 23 Oct 2017 |
Abstract
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.
Keywords
- all-dielectric nanoparticles, anapole, multipole decomposition, near-field microscopy, SNOM
ASJC Scopus subject areas
- Chemical Engineering(all)
- Bioengineering
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanical Engineering
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In: Nano letters, Vol. 17, No. 11, 23.10.2017, p. 7152-7159.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Direct Amplitude-Phase Near-Field Observation of Higher-Order Anapole States
AU - Zenin, Vladimir A.
AU - Evlyukhin, Andrey B.
AU - Novikov, Sergey M.
AU - Yang, Yuanqing
AU - Malureanu, Radu
AU - Lavrinenko, Andrei V.
AU - Chichkov, Boris N.
AU - Bozhevolnyi, Sergey I.
N1 - Funding information: The authors acknowledge financial support from the European Research Council, Grant No. 341054 (PLAQNAP); from the University of Southern Denmark (SDU2020 funding); from the Deutsche Forschungsgemeinschaft (Germany), project EV 220/ 2-1; and from the Villum Fonden (DarkSILD project). The development of the theoretical and numerical models has been partially supported by the Russian Science Foundation (Russian Federation), project 16-12-10287.
PY - 2017/10/23
Y1 - 2017/10/23
N2 - 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.
AB - 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.
KW - all-dielectric nanoparticles
KW - anapole
KW - multipole decomposition
KW - near-field microscopy
KW - SNOM
UR - http://www.scopus.com/inward/record.url?scp=85033238539&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.7b04200
DO - 10.1021/acs.nanolett.7b04200
M3 - Article
C2 - 29058440
AN - SCOPUS:85033238539
VL - 17
SP - 7152
EP - 7159
JO - Nano letters
JF - Nano letters
SN - 1530-6984
IS - 11
ER -