Terahertz electroluminescence from superlattice quantum cascade structures

Raffaele Colombelli; Axel Straub; Federico Capasso; Claire F. Gmachl; Myrtle I. Blakey; A. Michael Sergent; S. N.George Chu; Ken W. West; Loren N. Pfeiffer

doi:10.1063/1.1448393

Terahertz electroluminescence from superlattice quantum cascade structures

Raffaele Colombelli, Axel Straub, Federico Capasso, Claire F. Gmachl, Myrtle I. Blakey, A. Michael Sergent, S. N.George Chu, Ken W. West, Loren N. Pfeiffer

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

17 Scopus citations

Abstract

Intersubband electroluminescence is reported in a quantum-cascade structure based on asymmetric superlattice active regions and designed for emission in the THz range (λ≈80 μm). Comparison with a structure based on a "vertical transition" in a single quantum well shows an increased full width at half maximum (2.8 vs 0.9 meV) of the emission line. In both cases the dependence of the optical power on the injected current is linear or sublinear and remains in the pW range.

Original language	English (US)
Pages (from-to)	3526-3529
Number of pages	4
Journal	Journal of Applied Physics
Volume	91
Issue number	6
DOIs	https://doi.org/10.1063/1.1448393
State	Published - Mar 15 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.1448393

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title = "Terahertz electroluminescence from superlattice quantum cascade structures",

abstract = "Intersubband electroluminescence is reported in a quantum-cascade structure based on asymmetric superlattice active regions and designed for emission in the THz range (λ≈80 μm). Comparison with a structure based on a {"}vertical transition{"} in a single quantum well shows an increased full width at half maximum (2.8 vs 0.9 meV) of the emission line. In both cases the dependence of the optical power on the injected current is linear or sublinear and remains in the pW range.",

author = "Raffaele Colombelli and Axel Straub and Federico Capasso and Gmachl, {Claire F.} and Blakey, {Myrtle I.} and Sergent, {A. Michael} and Chu, {S. N.George} and West, {Ken W.} and Pfeiffer, {Loren N.}",

year = "2002",

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doi = "10.1063/1.1448393",

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T1 - Terahertz electroluminescence from superlattice quantum cascade structures

AU - Colombelli, Raffaele

AU - Straub, Axel

AU - Capasso, Federico

AU - Gmachl, Claire F.

AU - Blakey, Myrtle I.

AU - Sergent, A. Michael

AU - Chu, S. N.George

AU - West, Ken W.

AU - Pfeiffer, Loren N.

PY - 2002/3/15

Y1 - 2002/3/15

N2 - Intersubband electroluminescence is reported in a quantum-cascade structure based on asymmetric superlattice active regions and designed for emission in the THz range (λ≈80 μm). Comparison with a structure based on a "vertical transition" in a single quantum well shows an increased full width at half maximum (2.8 vs 0.9 meV) of the emission line. In both cases the dependence of the optical power on the injected current is linear or sublinear and remains in the pW range.

AB - Intersubband electroluminescence is reported in a quantum-cascade structure based on asymmetric superlattice active regions and designed for emission in the THz range (λ≈80 μm). Comparison with a structure based on a "vertical transition" in a single quantum well shows an increased full width at half maximum (2.8 vs 0.9 meV) of the emission line. In both cases the dependence of the optical power on the injected current is linear or sublinear and remains in the pW range.

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DO - 10.1063/1.1448393

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EP - 3529

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

ER -

Terahertz electroluminescence from superlattice quantum cascade structures

Abstract

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