Abstract
Abstract
Quantifying and controlling the coherent dynamics and couplings of optically active excitations in solids is of paramount importance in fundamental research in condensed matter optics and for their prospective optoelectronic applications in quantum technologies. Here, we perform ultrafast coherent nonlinear spectroscopy of a charge-tunable MoSe2 monolayer. The experiments show that the homogeneous and inhomogeneous line width and the population decay of exciton complexes hosted by this material can be directly tuned by an applied gate bias, which governs the Fermi level and therefore the free carrier density. By performing two-dimensional spectroscopy, we also show that the same bias-tuning approach permits us to control the coherent coupling strength between charged and neutral exciton complexes.
Funder
Foundation for Polish Science
EU
CNRS via IRP 2D Materials, EU
Polish National Science Centre
MEXT, Japan
JSPS
KAKENHI
ATOMOPTO
JST
EPSRC
Science Foundation Ireland
the European Magnetic Field Laboratory
CREST
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science,General Chemistry
Cited by
5 articles.
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