Coherent transport description of the dual-wavelength ambipolar terahertz quantum cascade laser

G. Beji; Z. Ikonić; C. A. Evans; D. Indjin; P. Harrison

doi:10.1063/1.3530628

Coherent transport description of the dual-wavelength ambipolar terahertz quantum cascade laser

G. Beji, Z. Ikonić, C. A. Evans, D. Indjin, P. Harrison

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

12 Citations (Scopus)

Abstract

A transport and gain model is developed for the recently realized ambipolar dual-wavelength terahertz quantum cascade laser. The model is based on the simplified density matrix formalism, describing the population and coherence terms of five relevant states per period, which includes the laser optical field and single-temperature thermal balance. Using the measured current densities under forward and reverse bias for calibration, a good theoretical/experimental agreement is found for the current-optical power characteristics and the laser dynamic range. This shows that the model is a reliable analyzer, if not yet a fully predictive tool, for quantum cascade laser simulation.

Original language	English
Article number	013111
Journal	Journal of Applied Physics
Volume	109
Issue number	1
DOIs	https://doi.org/10.1063/1.3530628
Publication status	Published - 1 Jan 2011
Externally published	Yes

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title = "Coherent transport description of the dual-wavelength ambipolar terahertz quantum cascade laser",

abstract = "A transport and gain model is developed for the recently realized ambipolar dual-wavelength terahertz quantum cascade laser. The model is based on the simplified density matrix formalism, describing the population and coherence terms of five relevant states per period, which includes the laser optical field and single-temperature thermal balance. Using the measured current densities under forward and reverse bias for calibration, a good theoretical/experimental agreement is found for the current-optical power characteristics and the laser dynamic range. This shows that the model is a reliable analyzer, if not yet a fully predictive tool, for quantum cascade laser simulation.",

keywords = "Dual-wavelength terahertz quantum cascade laser, Density matrix formalism, Laser optical field",

author = "G. Beji and Z. Ikoni{\'c} and Evans, {C. A.} and D. Indjin and P. Harrison",

note = "Funding Information: G.B. is grateful to the School of Electronic and Electrical Engineering, University of Leeds for funding. The authors also acknowledge support from NATO Science for Piece Collaborative Linkage Grant Program under the Project No. CBP.EAP.CLG 983316, and in part by the British Council/DAAD Academic Research Collaboration Program, and are grateful to Dr. L. J. M. Lever for helpful discussions.",

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AU - Indjin, D.

AU - Harrison, P.

N1 - Funding Information: G.B. is grateful to the School of Electronic and Electrical Engineering, University of Leeds for funding. The authors also acknowledge support from NATO Science for Piece Collaborative Linkage Grant Program under the Project No. CBP.EAP.CLG 983316, and in part by the British Council/DAAD Academic Research Collaboration Program, and are grateful to Dr. L. J. M. Lever for helpful discussions.

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N2 - A transport and gain model is developed for the recently realized ambipolar dual-wavelength terahertz quantum cascade laser. The model is based on the simplified density matrix formalism, describing the population and coherence terms of five relevant states per period, which includes the laser optical field and single-temperature thermal balance. Using the measured current densities under forward and reverse bias for calibration, a good theoretical/experimental agreement is found for the current-optical power characteristics and the laser dynamic range. This shows that the model is a reliable analyzer, if not yet a fully predictive tool, for quantum cascade laser simulation.

AB - A transport and gain model is developed for the recently realized ambipolar dual-wavelength terahertz quantum cascade laser. The model is based on the simplified density matrix formalism, describing the population and coherence terms of five relevant states per period, which includes the laser optical field and single-temperature thermal balance. Using the measured current densities under forward and reverse bias for calibration, a good theoretical/experimental agreement is found for the current-optical power characteristics and the laser dynamic range. This shows that the model is a reliable analyzer, if not yet a fully predictive tool, for quantum cascade laser simulation.

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Coherent transport description of the dual-wavelength ambipolar terahertz quantum cascade laser

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