RAMAN-SCATTERING FROM A CIRCULAR QUANTUM-DOT

Electronic Raman scattering from a doped circular quantum dot is studi ed within the random phase approximation. The Raman spectrum of the sp in density fluctuation channel consists of only sharp peaks due to sin gle-particle excitations. However, for the charge density fluctuation channel, the broadened plasmon peak in a small quantum dot may overlap with the sharp single-particle peaks, resulting in fine structures in the Raman sepctrum.