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Momentum-Resolved Observation of Exciton Formation Dynamics in Monolayer WS2

DOI to cite this document:
10.5283/epub.46391
Wallauer, Robert ; Perea-Causin, Raul ; Münster, Lasse ; Zajusch, Sarah ; Brem, Samuel ; Güdde, Jens ; Tanimiura, Katsumi ; Lin, Kai‐Qiang ; Huber, Rupert ; Malic, Ermin ; Höfer, U.
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Date of publication of this fulltext: 15 Feb 2022 07:35


Abstract

The dynamics of momentum-dark exciton formation in transition metal dichalcogenides is difficult to measure experimentally, as many momentum-indirect exciton states are not accessible to optical interband spectroscopy. Here, we combine a tunable pump, high-harmonic probe laser source with a 3D momentum imaging technique to map photoemitted electrons from monolayer WS2. This provides momentum-, ...

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