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Updated: Apr 1, 2026
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Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
Published on: April 4, 2016
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Whispering-gallery nanocavity plasmon-enhanced Raman spectroscopy
Jing Zhang1,2, Jinxing Li1,3, Shiwei Tang1
1Department of Materials Science, Fudan University, Shanghai 200433, People's Republic of China.
Scientific Reports
|October 8, 2015
Summary
Researchers achieved significantly enhanced surface-enhanced Raman scattering (SERS) detection using silver nanoparticle-decorated nanotubes. This synergy between whispering-gallery-mode (WGM) and surface plasmon resonance boosts SERS performance by 10^5 times.
Area of Science:
- Nanotechnology
- Optics
- Materials Science
Background:
- Synergistic effects in nature enhance functional properties.
- Surface-enhanced Raman scattering (SERS) detection performance can be significantly improved through cooperative factors.
Purpose of the Study:
- To achieve greatly enhanced SERS detection using rolled-up tubular nano-resonators decorated with silver nanoparticles.
- To explore the synergy between whispering-gallery-mode (WGM) and surface plasmon resonance for enhanced SERS.
Main Methods:
- Fabrication of rolled-up tubular nano-resonators.
- Decoration of nano-resonators with silver nanoparticles.
- Investigation of the synergy effect between WGM and surface plasmon resonance.
Main Results:
- Achieved an enhancement factor of 10^5 for SERS detection compared to non-resonant flat substrates.
- Demonstrated tunability of the enhancement by altering nanotube diameter and excitation laser wavelengths.
- Observed synchronous and coherent coupling between plasmonics and photonics.
Conclusions:
- The synergy between WGM and surface plasmon resonance provides a new principle for SERS enhancement.
- This approach enables the design of novel sub-wavelength optical devices.
- Potential applications include plasmonic waveguides and hyperbolic metamaterials.
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