Ontology highlight
ABSTRACT:
SUBMITTER: Dai Y
PROVIDER: S-EPMC7735744 | biostudies-literature | 2020 Jul
REPOSITORIES: biostudies-literature
ACS nano 20200707 7
Monolayer transition-metal dichalcogenides show strong optical nonlinearity with great potential for various emerging applications. Here we demonstrate the gate-tunable interband resonant four-wave mixing and sum-frequency generation in monolayer MoS<sub>2</sub>. Up to 80% modulation depth in four-wave mixing is achieved when the generated signal is resonant with the A exciton at room temperature, corresponding to an effective third-order optical nonlinearity |χ<sup>(3)</sup><sub>eff</sub>| tuni ...[more]