Interference corrections to light scattering and absorption by metal nanoparticles

QCD and QED Corrections to Light-by-Light Scattering

We present the QCD and QED corrections to the fermion-loop contributions to light-by-light scattering, γγ → γγ, in the ultrarelativistic limit where the kinematic invariants are much larger than the masses of the charged fermions.

Absorption and scattering microscopy of single metal nanoparticles.

Several recently developed detection techniques opened studies of individual metal nanoparticles (1-100 nm in diameter) in the optical far field. Eliminating averaging over the broad size and shape distributions produced by even the best of current synthesis methods, these studies hold great promise for gaining a deeper insight into many of the properties of metal nanoparticles, notably electro...

Optical scattering and absorption by metal nanoclusters in GaAs

Optical extinction by a dilute dispersion of metal nanoclusters in GaAs is calculated using the optical theorem and Maxwell-Garnet theory with complex dielectric functions for Cr, Fe, Ni, Cu, Ag, Au, Er, and As. The large dielectric function of the semiconductor host-shifts the surface plasmon resonance frequencies from the ultraviolet to the near infrared. The noble metals have well-defined re...

Light-By-Light Scattering Nonlogarithmic Corrections to Hyperfine Splitting in Muonium

Two-loop corrections to Light-by-Light scattering in Supersymmetric QED∗

Abstract: We use an n-dimensional projection method to calculate helicity amplitudes for photon-photon scattering up to the two-loop level, for massless particles inside the loop. We confirm the recent standard model results found by Bern et al using another calculational method. We further apply the method to N = 1 and N = 2 supersymmetric QED. As predicted by the supersymmetric Ward identity,...