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Conferences > QWOE > 1989 > MD > MD2

Two-photon Absorption Spectroscopy in GaAs Quantum Wells

K. Tai, R. J. Fischer, R. E. Slusher, A. Y. Cho, and A. Mysyrowicz

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Abstract

Two-photon absorption spectroscopy1,2 is a powerful method of investigating electronic properties of solids. Because the transition selection rules are different from those for linear absorption, levels which are not accessible in conventional one-photon spectroscopies can be observed. In this letter, we apply two-photon absorption spectroscopy to the study of quantum well structures.3 In GaAs/AlGaAs quantum wells, spectral features due to two-photon transitions and specific to quantum confinement were seen. The results demonstrate that the two-photon technique is well suited for extracting several important parameters of these artificial structures.

© 1989 Optical Society of America

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