Mapping of the dark exciton landscape in transition metal dichalcogenides
Artikel i vetenskaplig tidskrift, 2018

Transition metal dichalcogenides (TMDs) exhibit a remarkable exciton physics including bright and optically forbidden dark excitonic states. Here, we show how dark excitons can be experimentally revealed by probing the intraexcitonic 1s-2p transition. Distinguishing the optical response shortly after the excitation and after the exciton thermalization allows us to reveal the relative position of bright and dark excitons. We find both in theory and experiment a clear blueshift in the optical response demonstrating the transition of bright exciton populations into lower-lying dark excitonic states.

Författare

Gunnar Berghäuser

Chalmers, Fysik, Kondenserade materiens teori

Philipp Steinleitner

Universität Regensburg

Philipp Merkl

Universität Regensburg

R. Huber

Universität Regensburg

A. Knorr

Technische Universität Berlin

Ermin Malic

Chalmers, Fysik, Kondenserade materiens teori

Physical Review B

2469-9950 (ISSN) 2469-9969 (eISSN)

Vol. 98 2 020301

Ämneskategorier

Atom- och molekylfysik och optik

Annan fysik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.98.020301

Mer information

Senast uppdaterat

2018-09-19