2.1k citations · 7.4k across the 29 of their papers we have counts for
29 papers
Alloy engineering of excitonic properties in TMD monolayers
Eirini Katsipoulaki, Adlen Smiri, Panagiotis Spiliotakis +12
We investigate monolayer MoSSe alloys across the full composition range using optical spectroscopy. We demonstrate continuous tuning of the optical gap over $\sim…
Confinement of long-lived interlayer excitons in WS/WSe heterostructures
Alejandro R. -P. Montblanch, Dhiren M. Kara, Ioannis Paradisanos +13
Interlayer excitons in layered materials constitute a novel platform to study many-body phenomena arising from long-range interactions between quantum particles. The ability to loc…
Electrically tunable dynamic nuclear spin polarization in GaAs quantum dots at zero magnetic field
M. Manca, G. Wang, T. Kuroda +10
In III-V semiconductor nano-structures the electron and nuclear spin dynamics are strongly coupled. Both spin systems can be controlled optically. The nuclear spin dynamics is wide…
Excitons in atomically thin transition metal dichalcogenides
Gang Wang, Alexey Chernikov, Mikhail M. Glazov +4
Atomically thin materials such as graphene and monolayer transition metal dichalcogenides (TMDs) exhibit remarkable physical properties resulting from their reduced dimensionality…
Synthesis of Highly Anisotropic Semiconducting GaTe Nanomaterials and Emerging Properties Enabled by Epitaxy
Hui Cai, Bin Chen, Gang Wang +7
Pseudo-one dimensional (pseudo-1D) materials are a new-class of materials where atoms are arranged in chain like structures in two-dimensions (2D). Examples include recently discov…
Charged excitons in monolayer WSe: experiment and theory
E. Courtade, M. Semina, M. Manca +13
Charged excitons, or X-trions, in monolayer transition metal dichalcogenides have binding energies of several tens of meV. Together with the neutral exciton X they domi…
Gate controlled spin-valley locking of resident carriers in WSe2 monolayers
P. Dey, Luyi Yang, C. Robert +4
Using time-resolved Kerr rotation, we measure the spin/valley dynamics of resident electrons and holes in single charge-tunable monolayers of the archetypal transition-metal dichal…
In-plane Propagation of Light in Transition Metal Dichalcogenide Monolayers: Optical Selection Rules
G. Wang, C. Robert, M. M. Glazov +8
The optical selection rules for inter-band transitions in WSe2, WS2 and MoSe2 transition metal dichalcogenide monolayers are investigated by polarization-resolved photoluminescence…
Excitonic linewidth approaching the homogeneous limit in MoS2 based van der Waals heterostructures : accessing spin-valley dynamics
F. Cadiz, E. Courtade, C. Robert +13
The strong light matter interaction and the valley selective optical selection rules make monolayer (ML) MoS2 an exciting 2D material for fundamental physics and optoelectronics ap…
Enabling valley selective exciton scattering in monolayer WSe through upconversion
M. Manca, M. M. Glazov, C. Robert +9
Excitons, Coulomb bound electron-hole pairs, are composite bosons and their interactions in traditional semiconductors lead to condensation and light amplification. The much strong…
Intrinsic exciton states mixing and non-linear optical properties in transition metal dichalcogenide monolayers
M. M. Glazov, L. E. Golub, G. Wang +3
Optical properties of transition metal dichalcogenides monolayers are controlled by the Wannier-Mott excitons forming a series of , , ,... hydrogen-like states. We deve…
Ultra-low power threshold for laser induced changes in optical properties of 2D Molybdenum dichalcogenides
Fabian Cadiz, Cedric Robert, Gang Wang +13
The optical response of traditional semiconductors depends on the laser excitation power used in experiments. For two-dimensional (2D) semiconductors, laser excitation effects are…
Excitonic properties of semiconducting monolayer and bilayer MoTe2
C. Robert, R. Picard, D. Lagarde +9
MoTe2 belongs to the semiconducting transition metal dichalcogenide family with some properties differing from the other well-studied members (Mo,W)(S,Se)2. The optical band gap is…
Control of Exciton Valley Coherence in Transition Metal Dichalcogenide Monolayers
G. Wang, X. Marie, B. L. Liu +5
The direct gap interband transitions in transition metal dichalcogenides monolayers are governed by chiral optical selection rules. Determined by laser helicity, optical transition…
Well separated trion and neutral excitons on superacid treated MoS2 monolayers
Fabian Cadiz, Simon Tricard, Maxime Gay +6
Developments in optoelectronics and spin-optronics based on transition metal dichalcogenide monolayers (MLs) need materials with efficient optical emission and well-defined transit…
Hyperfine coupling of hole and nuclear spins in symmetric GaAs quantum dots
M. Vidal, M. V. Durnev, L. Bouet +10
In self assembled III-V semiconductor quantum dots, valence holes have longer spin coherence times than the conduction electrons, due to their weaker coupling to nuclear spin bath…
Exciton Radiative Lifetime in Transition Metal Dichalcogenide Monolayers
C. Robert, D. Lagarde, F. Cadiz +8
We have investigated the exciton dynamics in transition metal dichalcogenide mono-layers using time-resolved photoluminescence experiments performed with optimized time-resolution.…
Magneto-spectroscopy of excited states in charge-tunable GaAs/AlGaAs [111] quantum dots
M. V. Durnev, M. Vidal, L. Bouet +11
We present a combined experimental and theoretical study of highly charged and excited electron-hole complexes in strain-free (111) GaAs/AlGaAs quantum dots grown by droplet epitax…
Spin and valley dynamics of excitons in transition metal dichalcogenides monolayers
M. M. Glazov, E. L. Ivchenko, G. Wang +4
Monolayers of transition metal dichalcogenides, namely, molybdenum and tungsten disulfides and diselenides demonstrate unusual optical properties related to the spin-valley locking…
Magneto-optics in transition metal diselenide monolayers
G. Wang, L. Bouet, M. M. Glazov +5
We perform photoluminescence experiments at 4K on two different transition metal diselenide monolayers, namely MoSe2 and WSe2 in magnetic fields up to 9T applied perpendicula…
Polarization and time-resolved photoluminescence spectroscopy of excitons in MoSe2 monolayers
G. Wang, E. Palleau, T. Amand +3
We investigate valley exciton dynamics in MoSe2 monolayers in polarization- and time-resolved photoluminescence (PL) spectroscopy at 4K. Following circularly polarized laser excita…
Exciton dynamics in WSe2 bilayers
G. Wang, X. Marie, L. Bouet +5
We investigate exciton dynamics in 2H-WSe2 bilayers in time-resolved photoluminescence (PL) spectroscopy. Fast PL emission times are recorded for both the direct exciton with $τ_{D…
Charge tuning in [111] grown GaAs droplet quantum dots
L. Bouet, M. Vidal, T. Mano +10
We demonstrate charge tuning in strain free GaAs/AlGaAs quantum dots (QDs) grown by droplet epitaxy on a GaAs(111)A substrate. Application of a bias voltage allows the controlled c…
Electron Spin Dephasing and Optical Pumping of Nuclear Spins in GaN
G. Wang, C. R. Zhu, B. L. Liu +6
We have measured the donor-bound electron spin dynamics in cubic GaN by time-resolved Kerr rotation experiments. The ensemble electron spin dephasing time in this quantum dot like…