Dynamical nonlinearity in strained InGaAs (311)A sidewall quantum wires

Alderighi, Daniele; Zamfirescu, Marian; Vinattieri, Anna; Gurioli, Massimrno; Sanguinetti, Stefano; Povolotskyi, Michael; Gleize, Jerome; Di Carlo, Aldo; Lugli, Paolo; Nützel, Richard
February 2004
Applied Physics Letters;2/2/2004, Vol. 84 Issue 5, p786
Academic Journal
Significant optical nonlinearity has been found in InGaAs (311)A sidewall quantum wires by means of time resolved photoluminescence measurements. A strong reverse quantum confined Stark effect has been observed and attributed to the dynamical screening of both the internal piezoelectric field and the Coulomb interaction between carriers. The time evolution of the quantum wire emission has been reproduced by means of self-consistent calculations that take into account excitonic effects, strain, and induced piezoelectric charges. © 2004 American Institute of Physics.


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