摘要
The 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.
原文 | 英語 |
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文章編號 | 1806479 |
期刊 | Advanced Materials |
卷 | 31 |
發行號 | 7 |
DOIs | |
出版狀態 | 已發佈 - 2019 2月 15 |
ASJC Scopus subject areas
- 一般材料科學
- 材料力學
- 機械工業