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Polarization-dependent optical 2D Fourier transform spectroscopy of semiconductors



T Zhang, Irina Kuznetsova, T. Meier, X. Li, Richard Mirin, P. Thomas, Steven T. Cundiff


Optical 2D Fourier transform spectroscopy (2DFTS) provides insight into the many-body interactions in direct gap semiconductors by separating the contributions to the coherent nonlinear optical response. We demonstrate these features of optical 2DFTS by studying the heavy-hole and light-hole excitonic resonances in a gallium arsenide quantum well at low temperature. Varying the polarization of the incident beams exploits selection rules to achieve further separation. Calculations using a full many-body theory agree well with experimental results and nambiguously demonstrate the dominance of many-body physics.
(PNAS) Proc of the Nt''l Assoc of Sci


excitons, many-body effects, ultrafast


Zhang, T. , Kuznetsova, I. , Meier, T. , Li, X. , Mirin, R. , Thomas, P. and Cundiff, S. (2007), Polarization-dependent optical 2D Fourier transform spectroscopy of semiconductors, (PNAS) Proc of the Nt''l Assoc of Sci, [online], (Accessed April 15, 2024)
Created September 3, 2007, Updated October 12, 2021