Two dimensional semiconductors: Optical and electronic properties
Elsevier eBooks,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Infrared Magnetopolaritons in MoTe2 Monolayers and Bilayers
Physical Review Letters,
Год журнала:
2025,
Номер
134(7)
Опубликована: Фев. 20, 2025
MoTe_{2}
monolayers
and
bilayers
are
unique
within
the
family
of
van
der
Waals
materials
since
they
pave
way
toward
atomically
thin
infrared
light-matter
quantum
interfaces,
potentially
reaching
important
telecommunication
windows.
Here,
we
report
emergent
exciton
polaritons
based
on
in
a
low-temperature
open
microcavity
joint
experiment-theory
study.
Our
experiments
clearly
evidence
both
enhanced
oscillator
strength
luminescence
bilayers,
signified
by
38%
increase
Rabi
splitting
strongly
relaxation
to
low-energy
states.
The
latter
is
distinct
from
monolayers,
which
feature
bottlenecklike
inhibition.
Both
polaritonic
spin
valley
locking
spin-layer
revealed
via
Zeeman
effect,
map
control
composition
our
resonances.
Язык: Английский
Magneto-Optics of Anisotropic Exciton Polaritons in Two-Dimensional Perovskites
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 13, 2025
Layered
two-dimensional
(2D)
organic-inorganic
perovskite
semiconductors
support
strongly
confined
excitons
that
offer
significant
potential
for
ultrathin
polaritonic
devices
due
to
their
tunability
and
huge
oscillator
strength.
The
application
of
a
magnetic
field
has
proven
be
an
invaluable
tool
investigating
the
exciton
fine
structure
observed
in
these
materials,
yet
combination
in-plane
strong
coupling
regime
remained
largely
unexplored.
In
this
work,
we
combine
microscopic
theory
with
rigorous
solution
Maxwell's
equations
model
magneto-optics
polaritons
2D
perovskites.
We
predict
brightened
dark
state
can
enter
regime.
Furthermore,
magnetic-field-induced
mixing
polarization
selection
rules
breaking
symmetry
lead
highly
anisotropic
polariton
branches.
This
study
contributes
better
understanding
perovskites
demonstrates
cavity
control
polarization-sensitive
polaritons.
Язык: Английский
Cavity-Tuned Exciton Dynamics in Transition Metal Dichalcogenides Monolayers
Materials,
Год журнала:
2024,
Номер
17(16), С. 4127 - 4127
Опубликована: Авг. 20, 2024
A
fully
quantum,
numerically
accurate
methodology
is
presented
for
the
simulation
of
exciton
dynamics
and
time-resolved
fluorescence
cavity-tuned
two-dimensional
(2D)
materials
at
finite
temperatures.
This
approach
was
specifically
applied
to
a
monolayer
WSe2
system.
Our
enabled
us
identify
dynamical
spectroscopic
signatures
polaronic
polaritonic
effects
elucidate
their
characteristic
timescales
across
range
exciton–cavity
couplings.
The
employed
can
be
extended
various
2D
materials,
exploring
temperature
nonlinear
signals.
Язык: Английский