Investigations on nonlinear optics are active, with the applications in the modulators, fiber
lasers, optical sensors, etc. In this paper, we focus our attention on a system for the ultra …

Second harmonic generation (SHG) as an essential nonlinear optical effect, has gradually
shifted its research trend toward the integration and miniaturization of photonic and …

Optical‐microcavity‐enhanced light–matter interaction offers a powerful tool to develop fast
and precise sensing techniques, spurring applications in the detection of biochemical …

Over the past decade, research on atomically thin two-dimensional (2D) transition metal
dichalcogenides (TMDs) has expanded rapidly due to their unique properties such as high …

With conventional electronics reaching performance and size boundaries, all‐optical
processes have emerged as ideal building blocks for high speed and low power …

Nonlinear optical activities (eg, harmonic generations) in two-dimensional (2D) layered
materials have attracted much attention due to the great promise in diverse optoelectronic …

Nonlinear optical processes lie at the heart of frequency tunable coherent light sources,
including entangled photon sources and squeezed states of light, and they have become …

We report a new dark exciton in monolayer MoS 2 using second harmonic generation
spectroscopy. Hereby, the spectrally dependent second harmonic generation intensity splits …

Janus transition metal dichalcogenides are an emerging class of atomically thin materials
with engineered broken mirror symmetry that gives rise to long‐lived dipolar excitons …

The number of layers of 2D materials is of great significance for regulating the performance
of nanoelectronic devices and optoelectronic devices, where the optimal thickness of the …