Coherent dynamics of excitons in radiatively coupled multiple quantum well structures and microcavities

J. Kuhl; M. Huebner; D. Ammerlahn; T. Stroucken; B. Grote; S. Haas; S. W. Koch; G. Khitrova; H. Gibbs; R. Hey; K. Ploog

Coherent dynamics of excitons in radiatively coupled multiple quantum well structures and microcavities

J. Kuhl, M. Huebner, D. Ammerlahn, T. Stroucken, B. Grote, S. Haas, S. W. Koch, G. Khitrova, H. Gibbs, R. Hey, K. Ploog

Optical Sciences, College of

Research output: Contribution to conference › Paper › peer-review

Abstract

The exciton/photon coupling in multiple quantum well structures and microcavities was investigated. The time-integrated curves from the degenerate four-wave mixing on GaAs single and multiple quantum well Bragg samples revealed a double exponential decay. The initial rapid drop with a decay time of 2.5 ps reflected the depletion of the superradiant mode. The remaining signal due to the subradiant mode decayed with a time constant of 9 ps giving an upper limit of 40 μeV for disorder-induced scattering to the homogeneous linewidth. The interwell exciton/photon coupling was a pronounced low excitation phenomenon that rapidly disappeared with increasing excitation intensity due to intrawell exciton/exciton Coulomb scattering.

Original language	English (US)
Pages	450-451
Number of pages	2
State	Published - Dec 1 1998
Event	Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting - Princeville, HI, USA Duration: Aug 10 1998 → Aug 14 1998

Other

Other	Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting
City	Princeville, HI, USA
Period	8/10/98 → 8/14/98

ASJC Scopus subject areas

Engineering(all)

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Coherent dynamics of excitons in radiatively coupled multiple quantum well structures and microcavities. / Kuhl, J.; Huebner, M.; Ammerlahn, D.; Stroucken, T.; Grote, B.; Haas, S.; Koch, S. W.; Khitrova, G.; Gibbs, H.; Hey, R.; Ploog, K.

1998. 450-451 Paper presented at Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting, Princeville, HI, USA, .

Research output: Contribution to conference › Paper › peer-review

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abstract = "The exciton/photon coupling in multiple quantum well structures and microcavities was investigated. The time-integrated curves from the degenerate four-wave mixing on GaAs single and multiple quantum well Bragg samples revealed a double exponential decay. The initial rapid drop with a decay time of 2.5 ps reflected the depletion of the superradiant mode. The remaining signal due to the subradiant mode decayed with a time constant of 9 ps giving an upper limit of 40 μeV for disorder-induced scattering to the homogeneous linewidth. The interwell exciton/photon coupling was a pronounced low excitation phenomenon that rapidly disappeared with increasing excitation intensity due to intrawell exciton/exciton Coulomb scattering.",

author = "J. Kuhl and M. Huebner and D. Ammerlahn and T. Stroucken and B. Grote and S. Haas and Koch, {S. W.} and G. Khitrova and H. Gibbs and R. Hey and K. Ploog",

year = "1998",

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T1 - Coherent dynamics of excitons in radiatively coupled multiple quantum well structures and microcavities

AU - Kuhl, J.

AU - Huebner, M.

AU - Ammerlahn, D.

AU - Stroucken, T.

AU - Grote, B.

AU - Haas, S.

AU - Koch, S. W.

AU - Khitrova, G.

AU - Gibbs, H.

AU - Hey, R.

AU - Ploog, K.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The exciton/photon coupling in multiple quantum well structures and microcavities was investigated. The time-integrated curves from the degenerate four-wave mixing on GaAs single and multiple quantum well Bragg samples revealed a double exponential decay. The initial rapid drop with a decay time of 2.5 ps reflected the depletion of the superradiant mode. The remaining signal due to the subradiant mode decayed with a time constant of 9 ps giving an upper limit of 40 μeV for disorder-induced scattering to the homogeneous linewidth. The interwell exciton/photon coupling was a pronounced low excitation phenomenon that rapidly disappeared with increasing excitation intensity due to intrawell exciton/exciton Coulomb scattering.

AB - The exciton/photon coupling in multiple quantum well structures and microcavities was investigated. The time-integrated curves from the degenerate four-wave mixing on GaAs single and multiple quantum well Bragg samples revealed a double exponential decay. The initial rapid drop with a decay time of 2.5 ps reflected the depletion of the superradiant mode. The remaining signal due to the subradiant mode decayed with a time constant of 9 ps giving an upper limit of 40 μeV for disorder-induced scattering to the homogeneous linewidth. The interwell exciton/photon coupling was a pronounced low excitation phenomenon that rapidly disappeared with increasing excitation intensity due to intrawell exciton/exciton Coulomb scattering.

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T2 - Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting

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