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Iotti RC, Rossi F. Nature of charge transport in quantum-cascade lasers. Phys Rev Lett. 2001;87(14):146603doi: 10.1103/PhysRevLett.87.146603.
Iotti, R. C., & Rossi, F. (2001). Nature of charge transport in quantum-cascade lasers. Physical review letters, 87(14), 146603. https://doi.org/10.1103/PhysRevLett.87.146603
Iotti, R C, and Rossi, F. "Nature of charge transport in quantum-cascade lasers." Physical review letters vol. 87,14 (2001): 146603. doi: https://doi.org/10.1103/PhysRevLett.87.146603
Iotti RC, Rossi F. Nature of charge transport in quantum-cascade lasers. Phys Rev Lett. 2001 Oct 01;87(14):146603. doi: 10.1103/PhysRevLett.87.146603. Epub 2001 Sep 18. PMID: 11580666.
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Phys Rev Lett. 2001 Oct 01;87(14):146603. doi: 10.1103/PhysRevLett.87.146603. Epub 2001 Sep 18.

Nature of charge transport in quantum-cascade lasers.

Physical review letters

R C Iotti, F Rossi

Affiliations

  1. Istituto Nazionale per la Fisica della Materia (INFM) and Dipartimento di Fisica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.

PMID: 11580666 DOI: 10.1103/PhysRevLett.87.146603

Abstract

The first global quantum simulation of semiconductor-based quantum-cascade lasers is presented. Our three-dimensional approach allows us to study in a purely microscopic way the current-voltage characteristics of state-of-the-art unipolar nanostructures, and therefore to answer the long-standing controversial question: Is charge transport in quantum-cascade lasers mainly coherent or incoherent? Our analysis shows that (i) quantum corrections to the semiclassical scenario are minor and (ii) inclusion of carrier-phonon and carrier-carrier scattering gives excellent agreement with experimental results.

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