The interaction of excitons with lattice vibrations underlies the scattering from bright to dark
excitons as well as the coherent modulation of the exciton energy. Unlike the former …

The properties of excitons, or correlated electron–hole pairs, are of paramount importance to
optoelectronic applications of materials. A central component of exciton physics is the …

In this study, we utilized a rigorous ab initio-based finite momentum Bethe–Salpeter
equation to investigate the photoluminescence emission in two-dimensional hexagonal …

Van der Waals heterostructures of two-dimensional transition metal dichalcogenides provide
a unique platform to engineer optoelectronic devices tuning their optical properties via …

Despite its simple crystal structure, layered boron nitride features a surprisingly complex
variety of phonon-assisted luminescence peaks. We present a combined experimental and …

The measurement and manipulation of the coherent dynamics of excitonic states constitute a
forefront research challenge in semiconductor optics and quantum-coherence-based …

The photoluminescence spectrum of a single-layer boron nitride remains elusive, marked by
enigmatic satellites that hint at significant but unidentified exciton–phonon coupling. Here …

Monolayer hexagonal boron nitride (h-BN) film generally has a weak interaction with
incident illumination because of its atomic thickness, which restricts its applications in …

In pump-probe spectroscopy, two laser pulses are employed to garner dynamical
information from the sample of interest. The pump initiates the optical process by exciting a …

Bismuth-activated materials with broadband luminescence have continued to attract interest
for their potential applications in phosphors and broadband optical amplifiers. This study …