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Nonlinear Spectroscopy of Valley Excitons in 2D Semiconductors and Heterostructures

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Abstract

We investigate the resonant nonlinear optical response of excitons in monolayer MoSe2, where we observe narrow population pulsation resonances. We investigate interlayer excitons in MoSe2-WSe2 heterostructures, where we report long-lived valley polarization and spatial expansion.

© 2016 Optical Society of America

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