Apr 20, 2015 · Here, we demonstrate the electrical control of SHG intensity in a monolayer WSe 2 field-effect transistor, where the tunable SHG arises from the resonant responses of neutral …

Jan 7, 2019 · Quantum interference, probed by second-harmonic generation 18, 19, emerges in monolayer WSe 2, without a cavity, to split the frequency-doubled laser spectrum. The splitting …

Nov 11, 2024 · Current approaches to SHG control often depend on nonresonant conditions or symmetry breaking via single-gate control. Here, we employ dual-gate bilayer WSe 2 to …

Mar 4, 2015 · We perform second harmonic generation (SHG) spectroscopy as a function of laser energy and polarization at T = 4 K. At the exciton resonance energies we record an …

Jul 23, 2015 · Here we report a strong second-harmonic generation (SHG) in a 2D WSe 2 bilayer crystal caused by a back gate field. This unusual process takes place only when the gate …

Leveraging the strong local electric field and high state density of the observed quasi-BICs, the SHG from the WSe 2 monolayer can be enhanced by more than two orders of magnitude.

In this study, we focus on bilayer WSe 2 as a model system to demonstrate an innovative approach to enhance SHG. Our method leverages the strong exciton resonance and the …

Dec 16, 2015 · In this work, we perform SHG analysis in mono- and few-layer WSe 2 at ambient temperature and for a single excitation wavelength. Raman spectroscopy and …

Jul 1, 2024 · Current approaches to SHG control often depend on non-resonant conditions or symmetry breaking via single-gate control. Here, we employ dual-gate bilayer WSe2 to …

Mar 14, 2018 · Here we demonstrate that plasmonically generated hot electrons can be injected from plasmonic nanostructure into bilayer (2L) tungsten diselenide (WSe 2), breaking the …