Related Experiment Video
Updated: Mar 16, 2026
09:13
Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
Published on: April 4, 2017
8.0K
Integrated plasmonic nanotweezers for nanoparticle manipulation.
Optics Letters
|August 13, 2016
Summary
We demonstrate surface plasmon nanotweezers using gold nanoparticle chains and silicon-on-insulator waveguides. This allows for precise, wavelength-controlled movement of nano-objects for integrated optomechanical devices.
Area of Science:
- Plasmonics
- Nanophotonics
- Optomechanics
Background:
- Surface plasmon resonance (SPR) enables light manipulation at the nanoscale.
- Silicon-on-insulator (SOI) waveguides are standard for integrated photonics.
- Nanoparticle chains can exhibit unique plasmonic properties.
Purpose of the Study:
- To numerically demonstrate a novel nanotweezers configuration.
- To explore wavelength-tunable trapping of nano-objects.
- To enable compact integrated optomechanical nanoactuators.
Main Methods:
- Numerical simulations of coupled plasmonic and photonic systems.
- Modeling of gold nanoparticle chains on SOI waveguides.
- Analysis of nano-object trapping dynamics as a function of excitation wavelength.
Main Results:
- Demonstrated surface plasmon-based nanotweezers using gold nanoparticle chains on SOI waveguides.
- Achieved jumpless, linear repositioning of a nano-object by tuning excitation wavelength.
- Showcased the potential for precise control over trapping position.
Conclusions:
- Short gold nanoparticle chains coupled to SOI waveguides form effective surface plasmon nanotweezers.
- Wavelength-controlled linear repositioning is a key feature for nano-object manipulation.
- This configuration is promising for developing compact integrated optomechanical nanoactuators.
