ELECTRON RAMAN-SCATTERING IN CYLINDRICAL QUANTUM WIRES

The differential cross-section (DCS) for an electron Raman scattering (ERS) process in a semiconductor quantum wire (QW) of cylindrical geom etry is calculated for T = 0 K and neglecting phonon-assisted transiti ons. Electron states are considered assuming complete confinement with in the QW. We also assume single parabolic conduction and valence band s. Two kinds of spectrum are discussed: emission spectra (DCS as a fun ction of emitted photon energy) and excitation spectra (DCS as a funct ion of incident photon energy). In both cases we analyse the DCS for d ifferent scattering configurations. We study selection rules for the p rocesses. Singularities in the spectra are found and interpreted. The ERS studied here can be used to provide direct information about the e lectron band structure of the system.