Second Harmonic Light Manipulation with Vertical Split Ring Resonators

Wei-Yi Tsai; Tsung Lin Chung; Hui-Hsin Hsiao; Jia-Wern Chen; Ren Jie Lin; Pin Chieh Wu; Greg Sun; Chih-Ming Wang; Hiroaki Misawa; Din Ping Tsai

doi:10.1002/adma.201806479

Second Harmonic Light Manipulation with Vertical Split Ring Resonators

Adv Mater. 2019 Feb;31(7):e1806479. doi: 10.1002/adma.201806479. Epub 2018 Dec 14.

Authors

Wei-Yi Tsai¹, Tsung Lin Chung², Hui-Hsin Hsiao³, Jia-Wern Chen², Ren Jie Lin², Pin Chieh Wu¹, Greg Sun⁴, Chih-Ming Wang⁵, Hiroaki Misawa^{6

7}, Din Ping Tsai^{1

2

8}

Affiliations

¹ Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan.
² Department of Physics, National Taiwan University, Taipei, 10617, Taiwan.
³ Institute of Electro-Optical Science and Technology, National Taiwan Normal University, Taipei, 11677, Taiwan.
⁴ Department of Engineering, University of Massachusetts at Boston, Boston, MA, 02125, USA.
⁵ Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien, 97401, Taiwan.
⁶ Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0021, Japan.
⁷ Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu, 30010, Taiwan.
⁸ Department of Material Science and Engineering, National Tsing Hua University, 300, Hsinchu, Taiwan.

PMID: 30549339
DOI: 10.1002/adma.201806479

Abstract

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.

Keywords: nonlinear plasmonics; second harmonic generation; vertical split ring resonators (VSRR).

Abstract

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