Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells

J. Li; K. I. Kolokolov; C. Z. Ning; D. C. Larrabee; G. A. Khodaparast; J. Kono; K. Ueda; Y. Nakajima; S. Sasa; M. Inoue

doi:10.1016/j.physe.2003.08.016

Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells

J. Li, K. I. Kolokolov, C. Z. Ning, D. C. Larrabee, G. A. Khodaparast, J. Kono, K. Ueda, Y. Nakajima, S. Sasa, M. Inoue

Research output: Contribution to journal › Conference article

3 Scopus citations

Abstract

Linear absorption spectra from intersubband resonance in InAs/AlSb quantum wells are analyzed theoretically using the intersubband semiconductor Bloch equation approach. Our model goes beyond the Hartree-Fock approximation and treats particle-particle correlations under the second Born approximation. Electron-electron and longitudinal optical phonon scatterings from such a treatment describe intrinsic line broadening to the intersubband resonance. Electron subbands are determined self-consistently with a spurious-state-free 8-band k·p Hamiltonian under the envelope function approximation. To compare with experimental measurements, we also included line broadening due to electron-interface roughness scattering. Excellent agreement was achieved for temperature-dependent absorption spectra in the mid-infrared frequency range, after taking into careful account the interplay of material parameters, nonparabolicity in bandstructure, and many-body effects.

Original language	English (US)
Pages (from-to)	268-271
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	20
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physe.2003.08.016
State	Published - Jan 1 2004
Externally published	Yes
Event	Proceedings of the 11th International Conference on Narrow Gap - Buffalo, NY., United States Duration: Jun 16 2003 → Jun 20 2003

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Keywords

InAs/AlSb
Intersubband resonance
Many-body effects
Quantum wells

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Cite this

Li, J., Kolokolov, K. I., Ning, C. Z., Larrabee, D. C., Khodaparast, G. A., Kono, J., Ueda, K., Nakajima, Y., Sasa, S., & Inoue, M. (2004). Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells. Physica E: Low-Dimensional Systems and Nanostructures, 20(3-4), 268-271. https://doi.org/10.1016/j.physe.2003.08.016

Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells. / Li, J.; Kolokolov, K. I.; Ning, C. Z.; Larrabee, D. C.; Khodaparast, G. A.; Kono, J.; Ueda, K.; Nakajima, Y.; Sasa, S.; Inoue, M.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 20, No. 3-4, 01.01.2004, p. 268-271.

Research output: Contribution to journal › Conference article

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title = "Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells",

abstract = "Linear absorption spectra from intersubband resonance in InAs/AlSb quantum wells are analyzed theoretically using the intersubband semiconductor Bloch equation approach. Our model goes beyond the Hartree-Fock approximation and treats particle-particle correlations under the second Born approximation. Electron-electron and longitudinal optical phonon scatterings from such a treatment describe intrinsic line broadening to the intersubband resonance. Electron subbands are determined self-consistently with a spurious-state-free 8-band k·p Hamiltonian under the envelope function approximation. To compare with experimental measurements, we also included line broadening due to electron-interface roughness scattering. Excellent agreement was achieved for temperature-dependent absorption spectra in the mid-infrared frequency range, after taking into careful account the interplay of material parameters, nonparabolicity in bandstructure, and many-body effects.",

keywords = "InAs/AlSb, Intersubband resonance, Many-body effects, Quantum wells",

author = "J. Li and Kolokolov, {K. I.} and Ning, {C. Z.} and Larrabee, {D. C.} and Khodaparast, {G. A.} and J. Kono and K. Ueda and Y. Nakajima and S. Sasa and M. Inoue",

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AU - Li, J.

AU - Kolokolov, K. I.

AU - Ning, C. Z.

AU - Larrabee, D. C.

AU - Khodaparast, G. A.

AU - Kono, J.

AU - Ueda, K.

AU - Nakajima, Y.

AU - Sasa, S.

AU - Inoue, M.

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N2 - Linear absorption spectra from intersubband resonance in InAs/AlSb quantum wells are analyzed theoretically using the intersubband semiconductor Bloch equation approach. Our model goes beyond the Hartree-Fock approximation and treats particle-particle correlations under the second Born approximation. Electron-electron and longitudinal optical phonon scatterings from such a treatment describe intrinsic line broadening to the intersubband resonance. Electron subbands are determined self-consistently with a spurious-state-free 8-band k·p Hamiltonian under the envelope function approximation. To compare with experimental measurements, we also included line broadening due to electron-interface roughness scattering. Excellent agreement was achieved for temperature-dependent absorption spectra in the mid-infrared frequency range, after taking into careful account the interplay of material parameters, nonparabolicity in bandstructure, and many-body effects.

AB - Linear absorption spectra from intersubband resonance in InAs/AlSb quantum wells are analyzed theoretically using the intersubband semiconductor Bloch equation approach. Our model goes beyond the Hartree-Fock approximation and treats particle-particle correlations under the second Born approximation. Electron-electron and longitudinal optical phonon scatterings from such a treatment describe intrinsic line broadening to the intersubband resonance. Electron subbands are determined self-consistently with a spurious-state-free 8-band k·p Hamiltonian under the envelope function approximation. To compare with experimental measurements, we also included line broadening due to electron-interface roughness scattering. Excellent agreement was achieved for temperature-dependent absorption spectra in the mid-infrared frequency range, after taking into careful account the interplay of material parameters, nonparabolicity in bandstructure, and many-body effects.

KW - InAs/AlSb

KW - Intersubband resonance

KW - Many-body effects

KW - Quantum wells

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DO - 10.1016/j.physe.2003.08.016

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VL - 20

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EP - 271

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

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ER -

Access to Document

10.1016/j.physe.2003.08.016