Electronic distribution in superlattice quantum cascade lasers

Mariano Troccoli; Gaetano Scamarcio; Vincenzo Spagnolo; Alessandro Tredicucci; Claire Gmachl; Federico Capasso; Deborah L. Sivco; Alfred Y. Cho; Marinella Striccoli

doi:10.1063/1.1289798

Electronic distribution in superlattice quantum cascade lasers

Mariano Troccoli, Gaetano Scamarcio, Vincenzo Spagnolo, Alessandro Tredicucci, Claire Gmachl, Federico Capasso, Deborah L. Sivco, Alfred Y. Cho, Marinella Striccoli

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The electron population in the excited miniband of quantum cascade structures with intrinsic superlattice active regions is extracted from the fine structure analysis of spontaneous interminiband electroluminescence spectra. At current densities typical of laser thresholds, the electrons injected into the excited miniband of a (GaInAs)_{6 nm}/(AlInAs)_{1.8 nm} superlattice are described by a nonequilibrium thermal distribution characterized by temperatures T_e>200 K, much higher than the lattice temperature T_L = 15 K.

Original language	English (US)
Pages (from-to)	1088-1090
Number of pages	3
Journal	Applied Physics Letters
Volume	77
Issue number	8
DOIs	https://doi.org/10.1063/1.1289798
State	Published - Aug 21 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1289798

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title = "Electronic distribution in superlattice quantum cascade lasers",

abstract = "The electron population in the excited miniband of quantum cascade structures with intrinsic superlattice active regions is extracted from the fine structure analysis of spontaneous interminiband electroluminescence spectra. At current densities typical of laser thresholds, the electrons injected into the excited miniband of a (GaInAs)6 nm/(AlInAs)1.8 nm superlattice are described by a nonequilibrium thermal distribution characterized by temperatures Te>200 K, much higher than the lattice temperature TL = 15 K.",

author = "Mariano Troccoli and Gaetano Scamarcio and Vincenzo Spagnolo and Alessandro Tredicucci and Claire Gmachl and Federico Capasso and Sivco, {Deborah L.} and Cho, {Alfred Y.} and Marinella Striccoli",

year = "2000",

month = aug,

day = "21",

doi = "10.1063/1.1289798",

language = "English (US)",

volume = "77",

pages = "1088--1090",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Electronic distribution in superlattice quantum cascade lasers

AU - Troccoli, Mariano

AU - Scamarcio, Gaetano

AU - Spagnolo, Vincenzo

AU - Tredicucci, Alessandro

AU - Gmachl, Claire

AU - Capasso, Federico

AU - Sivco, Deborah L.

AU - Cho, Alfred Y.

AU - Striccoli, Marinella

PY - 2000/8/21

Y1 - 2000/8/21

N2 - The electron population in the excited miniband of quantum cascade structures with intrinsic superlattice active regions is extracted from the fine structure analysis of spontaneous interminiband electroluminescence spectra. At current densities typical of laser thresholds, the electrons injected into the excited miniband of a (GaInAs)6 nm/(AlInAs)1.8 nm superlattice are described by a nonequilibrium thermal distribution characterized by temperatures Te>200 K, much higher than the lattice temperature TL = 15 K.

AB - The electron population in the excited miniband of quantum cascade structures with intrinsic superlattice active regions is extracted from the fine structure analysis of spontaneous interminiband electroluminescence spectra. At current densities typical of laser thresholds, the electrons injected into the excited miniband of a (GaInAs)6 nm/(AlInAs)1.8 nm superlattice are described by a nonequilibrium thermal distribution characterized by temperatures Te>200 K, much higher than the lattice temperature TL = 15 K.

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U2 - 10.1063/1.1289798

DO - 10.1063/1.1289798

M3 - Article

AN - SCOPUS:0001699459

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VL - 77

SP - 1088

EP - 1090

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

ER -

Electronic distribution in superlattice quantum cascade lasers

Abstract

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