Magnetism in two-dimensional (2D) van der Waals (vdW) materials has recently emerged as
one of the most promising areas in condensed matter research, with many exciting emerging …

Recent results on the optical properties of monolayer and few layers of semiconducting
transition metal dichalcogenides are reviewed. Experimental observations are presented …

Exciton polaron is a hypothetical many-body quasiparticle that involves an exciton dressed
with a polarized electron-hole cloud in the Fermi sea. It has been evoked to explain the …

We present optical spectroscopy (photoluminescence and reflectance) studies of thin layers
of the transition metal dichalcogenide WSe2, with thickness ranging from mono-to tetra-layer …

Recent optical studies of monolayer transition-metal dichalcogenides have demonstrated
that their excitonic absorption feature splits into two widely separated peaks at finite carrier …

Atomically thin semiconductors such as transition metal dichalcogenide (TMD) monolayers
exhibit a very strong Coulomb interaction, giving rise to a rich exciton landscape. This makes …

We present the micro-photoluminescence (μPL) and micro-reflectance contrast (μRC)
spectroscopy studies on thin films of MoSe2 with layer thicknesses ranging from a …

Strong Coulomb interaction in atomically thin transition metal dichalcogenides makes these
systems particularly promising for studies of excitonic physics. Of special interest are the …

Recently, it has been demonstrated that the absorption of moderately doped two-
dimensional semiconductors can be described in terms of exciton polarons. In this scenario …

When mobile impurities are introduced and coupled to a Fermi sea, new quasiparticles
known as Fermi polarons are formed. There are two interesting, yet drastically different …