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Updated: Mar 21, 2026
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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
Published on: December 11, 2013
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Plasmon-enhanced second-harmonic generation from hybrid ZnO-covered silver-bowl array
Mingming Yang1, Shaoxin Shen, Xiangjie Wang
1Department of Physics, Xiamen University, Xiamen 361005, People's Republic of China.
Summary
We developed a novel ZnO-coated silver-bowl array for highly efficient plasmon-enhanced second-harmonic generation. This hybrid nanostructure maximizes spatial overlap for enhanced nonlinear optical effects at the nanoscale.
Area of Science:
- Nanophotonics
- Nonlinear Optics
- Materials Science
Background:
- Plasmon-enhanced nonlinear phenomena are crucial for applications like all-optical switching and bio-sensing.
- Existing hybrid nanostructures suffer from high energy loss and poor spatial overlap, limiting nonlinear conversion efficiency.
Purpose of the Study:
- To design and fabricate an efficient platform for plasmon-enhanced second-harmonic generation (PESHG).
- To investigate the role of spatial overlap in enhancing PESHG in hybrid nanostructures.
Main Methods:
- Fabrication of a ZnO-covered, 2D silver-bowl array nanostructure.
- Experimental validation and numerical simulations to analyze PESHG performance.
- Investigation of near-field enhancement and plasmon resonance effects.
Main Results:
- Demonstrated a ZnO-covered, 2D silver-bowl array as an efficient PESHG platform.
- Showcased high spatial overlap between near-field enhancement and the ZnO film as key to efficient PESHG.
- Achieved an enhancement factor of approximately 33 times due to fundamental wavelength-derived plasmon resonance.
Conclusions:
- The designed hybrid nanostructure significantly enhances PESHG efficiency.
- Optimized spatial overlap is critical for maximizing plasmon-enhanced nonlinear effects.
- This platform enables future applications requiring localized nanoscale light sources.
