Surface Plasmon Explained - Get the Answers!

[physicist888]

surface plasmon??

hi
Can anyone explain to me what's the surface plasmon?
thanks

 

[excalibur313]

Its a collective oscillation of the electron density in a metal. It's most prominent in Au, Ag, and Cu, possibly due to the low imaginary part of the dielectric constant which means that the oscillations are more pronounced and less dampened.

 

[Gokul43201]

What excalibur described is any plasmon - the vibrational eigenmode of the entire electron gas about the positive lattice. A surface plasmon is specifically that mode which propagates along the surface of a metal or the interface between two.