Lasing from excitons in quantum wires

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.

Keywords

ExcitonLasing thresholdBiexcitonStimulated emissionSemiconductorQuantum wellCondensed matter physicsPhysicsLaserRenormalizationMaterials scienceSpontaneous emissionWavelengthOptoelectronicsOpticsQuantum mechanics

Affiliated Institutions

AT&T (United States) US

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Publication Info

Year: 1993
Type: article
Volume: 71
Issue: 24
Pages: 4071-4074
Citations: 311
Access: Closed

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APA Style

                            
                                
                                    W. Wegscheider, 
                                
                                    L. N. Pfeiffer, 
                                
                                    Marc M. Dignam
                                
                                et al.
                            
                            (1993). 
                            Lasing from excitons in quantum wires. 
                            Physical Review Letters
                            , 71
                            (24)
                            , 4071-4074.
                            https://doi.org/10.1103/physrevlett.71.4071
                        

Identifiers

DOI: 10.1103/physrevlett.71.4071