Femtosecond four-wave-mixing studies of exciton localization and exciton-exciton interaction in ZnSe/ZnxCd1-xSe quantum wells

A. J. Fischer; D. S. Kim; J. Hays; W. Shan; J. J. Song; D. B. Eason; J. Ren; J. F. Schetzina; H. Luo; J. K. Furdyna

doi:10.1103/PhysRevB.50.17643

Femtosecond four-wave-mixing studies of exciton localization and exciton-exciton interaction in ZnSe/ZnxCd1-xSe quantum wells

A. J. Fischer
, D. S. Kim
, J. Hays
, W. Shan
, J. J. Song
, D. B. Eason
, J. Ren
, J. F. Schetzina
, H. Luo
, J. K. Furdyna

Physics

Oklahoma State University
North Carolina State University
University of Notre Dame

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

14 Scopus citations

Abstract

Femtosecond degenerate four-wave-mixing experiments are performed in the two-beam self-diffracted geometry in two inhomogeneously broadened ZnSe/ZnxCd1-xSe multiple-quantum-well samples at the excitonic resonances at 10 K. A large change in the dephasing time across the linewidth of one sample is observed, whereas it is nearly constant in the other, implying a different degree of localization in these two samples. Exciton-exciton interaction rates are determined across the linewidth, and it is shown that the exciton-exciton interaction rate is much less for excitons that are strongly localized compared to those that are extended.

Original language	English
Pages (from-to)	17643-17646
Number of pages	4
Journal	Physical Review B-Condensed Matter
Volume	50
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.50.17643
State	Published - 1994

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title = "Femtosecond four-wave-mixing studies of exciton localization and exciton-exciton interaction in ZnSe/ZnxCd1-xSe quantum wells",

abstract = "Femtosecond degenerate four-wave-mixing experiments are performed in the two-beam self-diffracted geometry in two inhomogeneously broadened ZnSe/ZnxCd1-xSe multiple-quantum-well samples at the excitonic resonances at 10 K. A large change in the dephasing time across the linewidth of one sample is observed, whereas it is nearly constant in the other, implying a different degree of localization in these two samples. Exciton-exciton interaction rates are determined across the linewidth, and it is shown that the exciton-exciton interaction rate is much less for excitons that are strongly localized compared to those that are extended.",

author = "Fischer, \{A. J.\} and Kim, \{D. S.\} and J. Hays and W. Shan and Song, \{J. J.\} and Eason, \{D. B.\} and J. Ren and Schetzina, \{J. F.\} and H. Luo and Furdyna, \{J. K.\}",

year = "1994",

doi = "10.1103/PhysRevB.50.17643",

language = "English",

volume = "50",

pages = "17643--17646",

journal = "Physical Review B-Condensed Matter",

issn = "0163-1829",

publisher = "American Institute of Physics",

number = "23",

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TY - JOUR

T1 - Femtosecond four-wave-mixing studies of exciton localization and exciton-exciton interaction in ZnSe/ZnxCd1-xSe quantum wells

AU - Fischer, A. J.

AU - Kim, D. S.

AU - Hays, J.

AU - Shan, W.

AU - Song, J. J.

AU - Eason, D. B.

AU - Ren, J.

AU - Schetzina, J. F.

AU - Luo, H.

AU - Furdyna, J. K.

PY - 1994

Y1 - 1994

N2 - Femtosecond degenerate four-wave-mixing experiments are performed in the two-beam self-diffracted geometry in two inhomogeneously broadened ZnSe/ZnxCd1-xSe multiple-quantum-well samples at the excitonic resonances at 10 K. A large change in the dephasing time across the linewidth of one sample is observed, whereas it is nearly constant in the other, implying a different degree of localization in these two samples. Exciton-exciton interaction rates are determined across the linewidth, and it is shown that the exciton-exciton interaction rate is much less for excitons that are strongly localized compared to those that are extended.

AB - Femtosecond degenerate four-wave-mixing experiments are performed in the two-beam self-diffracted geometry in two inhomogeneously broadened ZnSe/ZnxCd1-xSe multiple-quantum-well samples at the excitonic resonances at 10 K. A large change in the dephasing time across the linewidth of one sample is observed, whereas it is nearly constant in the other, implying a different degree of localization in these two samples. Exciton-exciton interaction rates are determined across the linewidth, and it is shown that the exciton-exciton interaction rate is much less for excitons that are strongly localized compared to those that are extended.

UR - https://www.scopus.com/pages/publications/0041152804

U2 - 10.1103/PhysRevB.50.17643

DO - 10.1103/PhysRevB.50.17643

M3 - Article

AN - SCOPUS:0041152804

SN - 0163-1829

VL - 50

SP - 17643

EP - 17646

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 23

ER -

Femtosecond four-wave-mixing studies of exciton localization and exciton-exciton interaction in ZnSe/ZnxCd1-xSe quantum wells

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