Presentation Information
[Tu-P-51]Probing ultrafast dynamics of many-body exciton states in charge-tunable monolayer WSe2 using pump-probe transient reflection
〇Sae Rom Lim1,2, Amine Ben Mhenni4, Alain Dijkstra1,2,3, Nathan Wilson1,2,3, Jonathan J. Finley1,2,3 (1. Walter Schottky Inst. (Germany), 2. Technical Univ. of Munich (Germany), 3. Munich Center for Quantum Sci. and Tech. (Germany), 4. Inst. for Quantum Electronics, ETH Zürich (Switzerland))
We study the ultrafast decay dynamics of six-body hexcitons in monolayer WSe2 using pump-probe transient reflection spectroscopy. Results reveal two characteristic time constants: an ultrafast thermalization process under 10 ps and a slower population lifetime of the hexciton that increases with charge carrier density.