THz radiation from coherent population changes in quantum wells

Paul C.M. Planken; Igal Brener; Martin C. Nuss; Marie S.C. Luo; Shun Lien Chuang; Loren N. Pfeiffer

doi:10.1103/PhysRevB.49.4668

THz radiation from coherent population changes in quantum wells

Paul C.M. Planken, Igal Brener, Martin C. Nuss, Marie S.C. Luo, Shun Lien Chuang, Loren N. Pfeiffer

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20 Scopus citations

Abstract

We identify the contributions to the terahertz (THz) signals from both the creation of polarized uncorrelated electron-hole pairs and polarized excitons in GaAs/Al0.3Ga0.7As quantum wells. We find that the THz radiation from the creation of polarized excitons is comparable in magnitude to that from the creation of polarized uncorrelated e-h pairs. Unlike the THz transient from uncorrelated e-h pairs, the signal from polarized excitons is also strongly influenced by the combined effects of detuning and finite pulse duration.

Original language	English (US)
Pages (from-to)	4668-4672
Number of pages	5
Journal	Physical Review B
Volume	49
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.49.4668
State	Published - 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.49.4668

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title = "THz radiation from coherent population changes in quantum wells",

abstract = "We identify the contributions to the terahertz (THz) signals from both the creation of polarized uncorrelated electron-hole pairs and polarized excitons in GaAs/Al0.3Ga0.7As quantum wells. We find that the THz radiation from the creation of polarized excitons is comparable in magnitude to that from the creation of polarized uncorrelated e-h pairs. Unlike the THz transient from uncorrelated e-h pairs, the signal from polarized excitons is also strongly influenced by the combined effects of detuning and finite pulse duration.",

author = "Planken, {Paul C.M.} and Igal Brener and Nuss, {Martin C.} and Luo, {Marie S.C.} and Chuang, {Shun Lien} and Pfeiffer, {Loren N.}",

year = "1994",

doi = "10.1103/PhysRevB.49.4668",

language = "English (US)",

volume = "49",

pages = "4668--4672",

journal = "Physical Review B",

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publisher = "American Physical Society",

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TY - JOUR

T1 - THz radiation from coherent population changes in quantum wells

AU - Planken, Paul C.M.

AU - Brener, Igal

AU - Nuss, Martin C.

AU - Luo, Marie S.C.

AU - Chuang, Shun Lien

AU - Pfeiffer, Loren N.

PY - 1994

Y1 - 1994

N2 - We identify the contributions to the terahertz (THz) signals from both the creation of polarized uncorrelated electron-hole pairs and polarized excitons in GaAs/Al0.3Ga0.7As quantum wells. We find that the THz radiation from the creation of polarized excitons is comparable in magnitude to that from the creation of polarized uncorrelated e-h pairs. Unlike the THz transient from uncorrelated e-h pairs, the signal from polarized excitons is also strongly influenced by the combined effects of detuning and finite pulse duration.

AB - We identify the contributions to the terahertz (THz) signals from both the creation of polarized uncorrelated electron-hole pairs and polarized excitons in GaAs/Al0.3Ga0.7As quantum wells. We find that the THz radiation from the creation of polarized excitons is comparable in magnitude to that from the creation of polarized uncorrelated e-h pairs. Unlike the THz transient from uncorrelated e-h pairs, the signal from polarized excitons is also strongly influenced by the combined effects of detuning and finite pulse duration.

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U2 - 10.1103/PhysRevB.49.4668

DO - 10.1103/PhysRevB.49.4668

M3 - Article

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VL - 49

SP - 4668

EP - 4672

JO - Physical Review B

JF - Physical Review B

IS - 7

ER -

THz radiation from coherent population changes in quantum wells

Abstract

All Science Journal Classification (ASJC) codes

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