Biese, G. and Schüller, Christian and Keller, K. and Steinebach, Christoph and Heitmann, Detlef and Grambow, P. and Eberl, Karl
Coupling of lateral and vertical electron motion in GaAs-AlxGa1-xAs quantum wires and dots.
Physical Review B (PRB) 53 (15), pp. 9565-9567.
at publisher (via DOI)
Other URL: http://link.aps.org/doi/10.1103/PhysRevB.53.9565
Electronic excitations in AlxGa1-xAs-GaAs quantum wires and quantum dots have been investigated by means of resonant inelastic light scattering. At low frequencies, we find quasi-one-dimensional and quasi-zero-dimensional confined plasmons. Interestingly, we observe, at higher frequencies, not only the original two-dimensional (2D) intersubband excitations, but additional modes ωk in polarized ...
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