Surface Plasmon Resonance
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Questions and Answers

Which phenomenon is responsible for the generation of surface plasmon resonance?

  • Coherent excitation of all free electrons in the conduction band
  • Transition between energy levels of incident radiation
  • Inphase oscillation of free electrons
  • Interaction between incident radiation and electron magnetic field (correct)
  • What happens when the size of a metal nanocrystal is larger than the wavelength of incident radiation?

  • Surface plasmon resonance is generated
  • No interaction occurs between the nanocrystal and the incident radiation (correct)
  • The material becomes opaque
  • The material becomes transparent
  • What determines the color of a material in surface plasmon resonance?

  • The transition between energy levels of the material (correct)
  • The wavelength of the incident radiation
  • The energy levels of the material
  • The size of the metal nanocrystal
  • What can nanoparticles do in relation to specific wavelengths of light?

    <p>Emit and absorb specific wavelengths of light</p> Signup and view all the answers

    Study Notes

    Surface Plasmon Resonance

    • Incident light striking a metal surface at a specific angle generates surface plasmon resonance, causing collective oscillations of electrons at the surface.

    Interaction of Incident Radiation with Metal Nanocrystals

    • When the size of a metal nanocrystal is larger than the wavelength of incident radiation, the radiation scatters off the nanocrystal.

    Color Determination in Surface Plasmon Resonance

    • The color of a material in surface plasmon resonance is determined by the specific wavelengths of light that are absorbed or scattered by the material.

    Nanoparticles and Specific Wavelengths of Light

    • Nanoparticles can absorb or scatter specific wavelengths of light, resulting in unique optical properties.
    • This interaction between nanoparticles and incident light can lead to selective absorption or emission of certain wavelengths, influencing the material's color.

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    Description

    Test your knowledge on Surface Plasmon Resonance and its role in determining the color of incident radiations. Learn about the coherent excitation of free electrons and the generation of surface plasmon resonance in metal nanocrystals.

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