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Conferences > CLEO_QELS > 2017 > FF2F > FF2F.5

Valley Polarization Dynamics of Inter- and Intra-valley Trions in Monolayer WSe2

Akshay Singh, Kha Tran, Joe Seifert, Yiping Wang, Kai Hao, Xiaoqin Li, Dennis Pleskot, Nathaniel M. Gabor, Sophia Helmrich, Mirco Kolarczik, Nina Owschimikow, and Ulrike Woggon

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Abstract

We investigate valley polarization dynamics of trions in WSe2 in resonant pump-probe experiments. Intra- and inter-valley trions show distinct polarization dynamics, the former exhibits long-lived valley polarization (> 25 ps), the latter a fast decay of ∼ 4 ps.

© 2017 Optical Society of America

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