Femtosecond excitonic bleaching recovery in the optical Stark effect of GaAs/AlxGa1-xAs multiple quantum wells and directional couplers

S. G. Lee; P. A. Harten; J. P. Sokoloff; R. Jin; B. Fluegel; K. E. Meissner; C. L. Chuang; R. Binder; S. W. Koch; G. Khitrova; H. M. Gibbs; N. Peyghambarian; J. N. Polky; G. A. Pubanz

doi:10.1103/PhysRevB.43.1719

Femtosecond excitonic bleaching recovery in the optical Stark effect of GaAs/AlxGa1-xAs multiple quantum wells and directional couplers

S. G. Lee, P. A. Harten, J. P. Sokoloff, R. Jin, B. Fluegel, K. E. Meissner, C. L. Chuang, R. Binder, S. W. Koch, G. Khitrova, H. M. Gibbs, N. Peyghambarian, J. N. Polky, G. A. Pubanz

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

18 Scopus citations

Abstract

Femtosecond pump-probe spectroscopy was used to study the ultrafast-excitonic-bleaching-recovery feature in the optical Stark effect of several GaAs/AlxGa1-xAs multiple-quantum-well samples at room and low temperatures. We also have seen this effect in a nonlinear directional coupler as a total transmission increase of the waveguides. The semiconductor Bloch equations for the system were solved numerically and gave good qualitative agreement with the experiments. The transient absorption saturation and recovery observed in the experiments is explained as an ultrafast adiabatic following of the semiconductor excitation.

Original language	English (US)
Pages (from-to)	1719-1725
Number of pages	7
Journal	Physical Review B
Volume	43
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.43.1719
State	Published - 1991

ASJC Scopus subject areas

Condensed Matter Physics

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Lee, S. G., Harten, P. A., Sokoloff, J. P., Jin, R., Fluegel, B., Meissner, K. E., Chuang, C. L., Binder, R., Koch, S. W., Khitrova, G., Gibbs, H. M., Peyghambarian, N., Polky, J. N., & Pubanz, G. A. (1991). Femtosecond excitonic bleaching recovery in the optical Stark effect of GaAs/AlxGa1-xAs multiple quantum wells and directional couplers. Physical Review B, 43(2), 1719-1725. https://doi.org/10.1103/PhysRevB.43.1719

Lee, SG, Harten, PA, Sokoloff, JP, Jin, R, Fluegel, B, Meissner, KE, Chuang, CL, Binder, R , Koch, SW, Khitrova, G, Gibbs, HM, Peyghambarian, N, Polky, JN & Pubanz, GA 1991, 'Femtosecond excitonic bleaching recovery in the optical Stark effect of GaAs/AlxGa1-xAs multiple quantum wells and directional couplers', Physical Review B, vol. 43, no. 2, pp. 1719-1725. https://doi.org/10.1103/PhysRevB.43.1719

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abstract = "Femtosecond pump-probe spectroscopy was used to study the ultrafast-excitonic-bleaching-recovery feature in the optical Stark effect of several GaAs/AlxGa1-xAs multiple-quantum-well samples at room and low temperatures. We also have seen this effect in a nonlinear directional coupler as a total transmission increase of the waveguides. The semiconductor Bloch equations for the system were solved numerically and gave good qualitative agreement with the experiments. The transient absorption saturation and recovery observed in the experiments is explained as an ultrafast adiabatic following of the semiconductor excitation.",

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year = "1991",

doi = "10.1103/PhysRevB.43.1719",

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AU - Sokoloff, J. P.

AU - Jin, R.

AU - Fluegel, B.

AU - Meissner, K. E.

AU - Chuang, C. L.

AU - Binder, R.

AU - Koch, S. W.

AU - Khitrova, G.

AU - Gibbs, H. M.

AU - Peyghambarian, N.

AU - Polky, J. N.

AU - Pubanz, G. A.

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AB - Femtosecond pump-probe spectroscopy was used to study the ultrafast-excitonic-bleaching-recovery feature in the optical Stark effect of several GaAs/AlxGa1-xAs multiple-quantum-well samples at room and low temperatures. We also have seen this effect in a nonlinear directional coupler as a total transmission increase of the waveguides. The semiconductor Bloch equations for the system were solved numerically and gave good qualitative agreement with the experiments. The transient absorption saturation and recovery observed in the experiments is explained as an ultrafast adiabatic following of the semiconductor excitation.

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Femtosecond excitonic bleaching recovery in the optical Stark effect of GaAs/AlxGa1-xAs multiple quantum wells and directional couplers

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