Resonant inelastic light scattering by electronic excitations in tunable quantum wire structures

G. Schedelbeck, E. Silveira, R. Strenz, U. Bockelmann, G. Abstreiter, G. Böhm, G. Weimann

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Resonant inelastic light scattering was used to investigate both charge density excitations and spin density excitations in shallow etched GaAs/AlGaAs quantum wires. A semi-transparent Schottky gate was evaporated on top of the samples which allowed a strong tunability of the electron density and the lateral confinement, even under high illumination conditions used for inelastic light scattering. The range of charge density excitations extended from confined plasmons to a plasmon band structure. Both intra- and intersubband single-particle excitations were observed. The occurrence of a tunable doublet structure in depolarized plane wave spectra is attributed to spin flip intrasubband single-particle excitations.

Original languageEnglish
Pages (from-to)783-787
Number of pages5
JournalSurface Science
Volume361-362
DOIs
StatePublished - 20 Jul 1996

Fingerprint

Dive into the research topics of 'Resonant inelastic light scattering by electronic excitations in tunable quantum wire structures'. Together they form a unique fingerprint.

Cite this