Resonant Raman scattering off neutral quantum dots
نویسندگان
چکیده
Resonant inelastic (Raman) light scattering off neutral GaAs quantum dots which contain a mean number, N = 42, of electron-hole pairs is computed. We find Raman amplitudes corresponding to strongly collective final states (charge-density excitations) of similar magnitude as the amplitudes related to weakly collective or single-particle excitations. As a function of the incident laser frequency or the magnetic field, they are rapidly varying amplitudes. It is argued that strong Raman peaks should come out in the spin-density channels, not related to valence-band mixing effects in the intermediate states. PACS: 78.30.-j, 78.67.Hc Typeset using REVTEX 1
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تاریخ انتشار 2008