Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells

B. Fluegel; K. Alberi; L. Bhusal; A. Mascarenhas; D. W. Snoke; G. Karunasiri; L. N. Pfeiffer; K. West

doi:10.1103/PhysRevB.83.195320

Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells

B. Fluegel, K. Alberi, L. Bhusal, A. Mascarenhas, D. W. Snoke, G. Karunasiri, L. N. Pfeiffer, K. West

Materials Science

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

5 Scopus Citations

Abstract

Exciton photoluminescence pattern generation is investigated in multiple quantum wells. High-contrast outer rings and localized bright spots are generated using efficient field-assisted upconversion of laser light whose photon energy lies below the energy of the luminescing quantum well transition. Time-resolved images of the bright spots reveal unexpected dynamics that are not explained by two-dimensional rate equations for generation and diffusion. This behavior can be understood as a result of three-dimensional transport in the vertically extended samples.

Original language	American English
Article number	195320
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.83.195320 https://doi.org/10.1103/PhysRevB.83.195320
State	Published - 16 May 2011

NREL Publication Number

NREL/JA-5900-50361

Keywords

photoluminescence
quantum wells

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title = "Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells",

abstract = "Exciton photoluminescence pattern generation is investigated in multiple quantum wells. High-contrast outer rings and localized bright spots are generated using efficient field-assisted upconversion of laser light whose photon energy lies below the energy of the luminescing quantum well transition. Time-resolved images of the bright spots reveal unexpected dynamics that are not explained by two-dimensional rate equations for generation and diffusion. This behavior can be understood as a result of three-dimensional transport in the vertically extended samples.",

keywords = "photoluminescence, quantum wells",

author = "B. Fluegel and K. Alberi and L. Bhusal and A. Mascarenhas and Snoke, \{D. W.\} and G. Karunasiri and Pfeiffer, \{L. N.\} and K. West",

year = "2011",

month = may,

day = "16",

doi = "10.1103/PhysRevB.83.195320",

language = "American English",

volume = "83",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells

AU - Fluegel, B.

AU - Alberi, K.

AU - Bhusal, L.

AU - Mascarenhas, A.

AU - Snoke, D. W.

AU - Karunasiri, G.

AU - Pfeiffer, L. N.

AU - West, K.

PY - 2011/5/16

Y1 - 2011/5/16

N2 - Exciton photoluminescence pattern generation is investigated in multiple quantum wells. High-contrast outer rings and localized bright spots are generated using efficient field-assisted upconversion of laser light whose photon energy lies below the energy of the luminescing quantum well transition. Time-resolved images of the bright spots reveal unexpected dynamics that are not explained by two-dimensional rate equations for generation and diffusion. This behavior can be understood as a result of three-dimensional transport in the vertically extended samples.

AB - Exciton photoluminescence pattern generation is investigated in multiple quantum wells. High-contrast outer rings and localized bright spots are generated using efficient field-assisted upconversion of laser light whose photon energy lies below the energy of the luminescing quantum well transition. Time-resolved images of the bright spots reveal unexpected dynamics that are not explained by two-dimensional rate equations for generation and diffusion. This behavior can be understood as a result of three-dimensional transport in the vertically extended samples.

KW - photoluminescence

KW - quantum wells

UR - https://www.scopus.com/pages/publications/79961113085

U2 - 10.1103/PhysRevB.83.195320

DO - 10.1103/PhysRevB.83.195320

M3 - Article

AN - SCOPUS:79961113085

SN - 1098-0121

VL - 83

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 19

M1 - 195320

ER -

Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells

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Keywords

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