摘要
The absorption of light by metallic nanostructures significantly increases at surface plasmon resonances,attributed to the coherent oscillation of large amounts of free electrons in the metal.The dephasing of surface plasmon oscillation releases energy through radiative processes(via photon emission)or nonradiative processes(via ohmic heating).The nonradiative dissipation generates energetic electrons or holes and then goes through thermal relaxation via lattice vibration(phonons)[1,2].
