Abstract
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimThe second harmonic generation (SHG) of vertical and planar split-ring resonators (SRRs) that are broken centro-symmetry configurations at the interface of metal surface and air is investigated. Strong interactions, better electromagnetic field confinements, and less leakage into the substrate for vertical SRRs are found. Experimental results show a 2.6-fold enhancement of SHG nonlinearity, which is in good agreement with simulations and calculations. Demonstrations of 3D metastructures and vertical SRRs with strong SHG nonlinearity majorly result from magnetic dipole and electric quadrupole clearly provides potential applications for photonics and sensing.
Original language | English |
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Article number | 1806479 |
Journal | Advanced Materials |
Volume | 31 |
Issue number | 7 |
DOIs | |
Publication status | Published - 15 Feb 2019 |
Externally published | Yes |
Keywords
- nonlinear plasmonics
- second harmonic generation
- vertical split ring resonators (VSRR)
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering