677 citations · 3.1k across the 34 of their papers we have counts for
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Using Light to Polarize and Detect Electron Spins in Silicon
Xavier Marie, Delphine Lagarde, Andrea Balocchi +5
Despite decades of research, demonstration of all-optical detection and control of free electron spins in silicon remains elusive. Here, we directly probe the electron spin propert…
A systematic study of spin-dependent recombination in GaAsN as a function of nitrogen content
A. C. Ulibarri, R. Kothari, A. Garcia +5
A systematic study of spin-dependent recombination (SDR) under steady-state optical pumping conditions in dilute nitride semiconductors as a function of nitrogen content is reporte…
Enhancement of valley polarization at high photoexcited densities in MoS2 monolayers
Fabian Cadiz, Stefan Gerl, Takashi Taniguchi +1
We have investigated the steady-sate valley polarization and valley coherence of encapsulated MoS2 monolayer as a function of the temperature and the power density with a continuou…
Imaging Seebeck drift of excitons and trions in MoSe2 monolayers
Sangjun Park, Bo Han, Caroline Boule +10
Hyperspectral imaging at cryogenic temperatures is used to investigate exciton and trion propagation in MoSe monolayers encapsulated with hexagonal boron nitride (hBN). Under a…
Optical spectroscopy of excited exciton states in MoS2 monolayers in van der Waals heterostructures
C. Robert, M. A. Semina, F. Cadiz +12
The optical properties of MoS2 monolayers are dominated by excitons, but for spectrally broad optical transitions in monolayers exfoliated directly onto SiO2 substrates detailed in…
Fine Structure and Lifetime of Dark Excitons in Transition Metal Dichalcogenide Monolayers
Cedric Robert, Thierry Amand, Fabian Cadiz +7
The intricate interplay between optically dark and bright excitons governs the light-matter interaction in transition metal dichalcogenide monolayers. We have performed a detailed…
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…
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…
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…
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.…
Absence of an intrinsic value for the surface recombination velocity in doped semiconductors
F. Cadiz, D. Paget, V. L. Berkovits +4
A self-consistent expression for the surface recombination velocity and the surface Fermi level unpinning energy as a function of light excitation power () is presented for…