Lasing from excitons in quantum wires

W. Wegscheider, L. N. Pfeiffer, M. M. Dignam, A. Pinczuk, K. W. West, S. L. McCall, R. Hull

Research output: Contribution to journalArticlepeer-review

306 Scopus citations

Abstract

Stimulated optical emission from the lowest exciton state in atomically smooth semiconductor quantum wires is observed for the first time. The wires are formed by the ssT intersection of two 7 nm GaAs quantum wells. The optical emission wavelength is nearly independent of pump levels. This absence of band-gap renormalization in the laser emission indicates a marked increase in the stability of the exciton in one dimension.

Original languageEnglish (US)
Pages (from-to)4071-4074
Number of pages4
JournalPhysical review letters
Volume71
Issue number24
DOIs
StatePublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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