Quantum cascade lasers in magnetic field: An active region model

I. Savić; V. Milanović; D. Indjin; Z. Ikonić; V. D. Jovanović; P. Harrison

doi:10.1002/pssb.200461758

Quantum cascade lasers in magnetic field: An active region model

I. Savić, V. Milanović, D. Indjin, Z. Ikonić, V. D. Jovanović, P. Harrison

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

A model of the active region of a quantum well cascade laser (QCL) subjected to an externally applied magnetic field is presented, based on a solution of the coupled rate equations, assuming unity injection. Landau quantization induced by magnetic confinement imposes a need for a modification of the well-established active region model in order to accurately describe the processes occurring in an entirely discrete spectrum. Landau level (LL) configuration has major consequences for scattering processes, enhancing or inhibiting them depending on the inter-LL energy separation, and strongly modifies the population inversion and optical gain that can be estimated from the presented model. Numerical calculations were performed for a GaAs/AlGaAs QCL emitting at λ = 11.4 μm in a magnetic field of 10-60 T.

Original language	English
Pages (from-to)	1812-1816
Number of pages	5
Journal	Physica Status Solidi (B) Basic Research
Volume	242
Issue number	9
Early online date	1 Jul 2005
DOIs	https://doi.org/10.1002/pssb.200461758
Publication status	Published - 1 Jul 2005
Externally published	Yes
Event	XVII Latin American Symposium on Solid State Physics - La Habana, Cuba Duration: 6 Dec 2004 → 9 Dec 2004 Conference number: 17

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title = "Quantum cascade lasers in magnetic field: An active region model",

abstract = "A model of the active region of a quantum well cascade laser (QCL) subjected to an externally applied magnetic field is presented, based on a solution of the coupled rate equations, assuming unity injection. Landau quantization induced by magnetic confinement imposes a need for a modification of the well-established active region model in order to accurately describe the processes occurring in an entirely discrete spectrum. Landau level (LL) configuration has major consequences for scattering processes, enhancing or inhibiting them depending on the inter-LL energy separation, and strongly modifies the population inversion and optical gain that can be estimated from the presented model. Numerical calculations were performed for a GaAs/AlGaAs QCL emitting at λ = 11.4 μm in a magnetic field of 10-60 T.",

keywords = "42.55.Px, 42.60.Lh, 73.63.Hs, Gallium arsenide, III-V semiconductors, Magnetic fields, Semiconductor quantum wells",

author = "I. Savi{\'c} and V. Milanovi{\'c} and D. Indjin and Z. Ikoni{\'c} and Jovanovi{\'c}, {V. D.} and P. Harrison",

year = "2005",

month = jul,

day = "1",

doi = "10.1002/pssb.200461758",

language = "English",

volume = "242",

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journal = "Physica Status Solidi (B): Basic Research",

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number = "9",

note = "XVII Latin American Symposium on Solid State Physics ; Conference date: 06-12-2004 Through 09-12-2004",

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TY - JOUR

T1 - Quantum cascade lasers in magnetic field

T2 - XVII Latin American Symposium on Solid State Physics

AU - Savić, I.

AU - Milanović, V.

AU - Indjin, D.

AU - Ikonić, Z.

AU - Jovanović, V. D.

AU - Harrison, P.

N1 - Conference code: 17

PY - 2005/7/1

Y1 - 2005/7/1

N2 - A model of the active region of a quantum well cascade laser (QCL) subjected to an externally applied magnetic field is presented, based on a solution of the coupled rate equations, assuming unity injection. Landau quantization induced by magnetic confinement imposes a need for a modification of the well-established active region model in order to accurately describe the processes occurring in an entirely discrete spectrum. Landau level (LL) configuration has major consequences for scattering processes, enhancing or inhibiting them depending on the inter-LL energy separation, and strongly modifies the population inversion and optical gain that can be estimated from the presented model. Numerical calculations were performed for a GaAs/AlGaAs QCL emitting at λ = 11.4 μm in a magnetic field of 10-60 T.

AB - A model of the active region of a quantum well cascade laser (QCL) subjected to an externally applied magnetic field is presented, based on a solution of the coupled rate equations, assuming unity injection. Landau quantization induced by magnetic confinement imposes a need for a modification of the well-established active region model in order to accurately describe the processes occurring in an entirely discrete spectrum. Landau level (LL) configuration has major consequences for scattering processes, enhancing or inhibiting them depending on the inter-LL energy separation, and strongly modifies the population inversion and optical gain that can be estimated from the presented model. Numerical calculations were performed for a GaAs/AlGaAs QCL emitting at λ = 11.4 μm in a magnetic field of 10-60 T.

KW - 42.55.Px

KW - 42.60.Lh

KW - 73.63.Hs

KW - Gallium arsenide

KW - III-V semiconductors

KW - Magnetic fields

KW - Semiconductor quantum wells

UR - http://www.scopus.com/inward/record.url?scp=23044479359&partnerID=8YFLogxK

U2 - 10.1002/pssb.200461758

DO - 10.1002/pssb.200461758

M3 - Conference article

AN - SCOPUS:23044479359

VL - 242

SP - 1812

EP - 1816

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

SN - 0370-1972

IS - 9

Y2 - 6 December 2004 through 9 December 2004

ER -

Quantum cascade lasers in magnetic field: An active region model

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