Abstract

Monolayers of transition-metal dichalcogenides (TMDs) like Molybdenum Disulphide (MoS2) are direct-bandgap semiconductors with thicknesses below 1 nm. Due to their broken inversion symmetry, such monolayers feature a second-order nonlinear susceptibility, which is enhanced in spectral regions close to excitonic resonances [1].

© 2019 IEEE

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