Many-body interactions in semiconductors probed by optical two-dimensional fourier transform spectroscopy |
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| Authors: | Li Xiaoqin Zhang Tianhao Borca Camelia N Cundiff Steven T |
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| Affiliation: | JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA. |
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| Abstract: | We study many-body interactions between excitons in semiconductors by applying the powerful technique of optical two-dimensional Fourier transform spectroscopy. A two-dimensional spectrum correlates the phase (frequency) evolution of the nonlinear polarization field during the initial evolution and the final detection period. A single two-dimensional spectrum can identify couplings between resonances, separate quantum mechanical pathways, and distinguish among microscopic many-body interactions. |
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