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Updated: Jul 6, 2026
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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
Published on: December 11, 2013
Pressure-Tuned Plasmonic Propagation on a Silver Nanowire
Kade Johnson1, Shriya Gumber2, Luo Li3
1Department of Physics and Astronomy, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States.
Nano Letters
|July 4, 2026
Summary
High pressure significantly enhances surface plasmon polariton (SPP) propagation in silver nanowires, doubling their travel distance. This discovery opens new avenues for nanoscale optical circuitry and high-pressure sensing applications.
Area of Science:
- Nanophotonics
- Materials Science
- Condensed Matter Physics
Background:
- Surface plasmon polaritons (SPPs) in metallic nanowires are key for nanoscale optical circuits.
- Plasmonic losses and short propagation distances limit their practical use.
- The effect of extreme conditions on SPP transport is largely unknown.
Purpose of the Study:
- To investigate the impact of high hydrostatic pressure on SPP propagation in silver nanowires.
- To understand how extreme stimuli modify plasmon transport dynamics.
Main Methods:
- Measurements of SPP propagation in silver nanowires within a diamond anvil cell (DAC).
- Application of hydrostatic pressures up to 6 GPa.
- Density functional theory (DFT) calculations to support experimental findings.
Main Results:
- SPP propagation distance in silver nanowires doubled at 6 GPa hydrostatic pressure.
- Pressure dependence indicates suppression of electron-phonon and electron-electron scattering.
- Experimental data aligns with DFT calculations.
Conclusions:
- Hydrostatic pressure is a novel tuning parameter for plasmonic transport.
- Findings suggest potential applications in high-pressure optical sensing.
- Adaptive plasmonic waveguides can be developed using pressure tuning.
