Intersubband absorption in the conduction band of Si/Si 1-xGex multiple quantum wells

H. Hertle, G. Schuberth, E. Gornik, G. Abstreiter, F. Schäffler

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

The intersubband absorption of electrons in modulation doped Si/Si 1-xGex multiple quantum wells has been observed. Various samples with different well widths and carrier densities have been studied. Narrow absorption lines are observed in waveguide geometry. The measured transition energies are in good agreement with self consistent subband calculations.

Original languageEnglish
Pages (from-to)2977-2979
Number of pages3
JournalApplied Physics Letters
Volume59
Issue number23
DOIs
StatePublished - 1991

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