Can the Plasmon Frequency in Metals Be Changed Experimentally?

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SUMMARY

The discussion centers on the experimental alteration of plasmon frequencies in metals, specifically silver. The plasmon frequency is defined by the equation ωp²=Ne²/ε0meff, where N represents electron density, e is the electron charge, ε0 is the permittivity of free space, and meff is the effective mass of electrons. Participants confirm that changing the electron density or the effective mass of electrons can indeed modify the plasmon frequency. This is particularly relevant for applications in metallic photonic crystals and their impact on photonic band gaps.

PREREQUISITES
  • Understanding of plasmonics and its applications in photonic crystals.
  • Familiarity with the equation for plasmon frequency: ωp²=Ne²/ε0meff.
  • Knowledge of electron density and effective mass concepts in solid-state physics.
  • Basic principles of photonic band gaps and their significance in optics.
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  • Research methods to experimentally alter electron density in metals.
  • Explore techniques for measuring plasmon frequencies in metallic structures.
  • Investigate the role of effective mass in plasmonic behavior and its manipulation.
  • Study the relationship between plasmon frequency and photonic band gap in metallic photonic crystals.
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Researchers in photonics, materials scientists, and physicists focused on plasmonics and the development of metallic photonic crystals.

ahatef
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Hi guys;

I have a question about the Plasmon frequencies in metals I know that it can be calculated as following:
ωp2=Ne2/ε0meff
I was just wondering if anyone knows it is possible to change the plasmon frequency of any metal let say silver experimentally or not. I am working on metallic photonic crystals I want to find the effect of plasmon frequency on photonic band gap.
Thanks
 
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Change either the electron density or the electrons effective mass.
 

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