3 papers
cond-mat.mes-hall2021
Second- and third-order optical susceptibilities in bidimensional semiconductors near excitons states
Lucas Lafeta, Aurea Corradi, Tianyi Zhang +6
Semiconducting Transition Metal Dichalcogenides (TMDs) have significant nonlinear optical effects. In this work we have used second-harmonic generation (SHG) and the four-wave mixi…
cond-mat.mes-hall2019
Nonlinear dark-field imaging of 1D defects in monolayer dichalcogenides
Bruno R. Carvalho, Yuanxi Wang, Kazunori Fujisawa +10
Extended defects with one dimensionality smaller than that of the host, such as 2D grain boundaries in 3D materials or 1D grain boundaries in 2D materials, can be particularly dama…
cond-mat.mes-hall2018
Strong exciton regulation of Raman scattering in monolayer dichalcogenides
Yuanxi Wang, Bruno R. Carvalho, Vincent H. Crespi
The weakly screened electron-hole interactions in an atomically thin semiconductor not only downshift its excitation spectrum from a quasiparticle one, but also redistribute excita…