Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …

Recent progress in utilizing ultrafast light-matter interaction to control the macroscopic
properties of quantum materials is reviewed. Particular emphasis is placed on photoinduced …

The crystal structure of a solid largely dictates its electronic, optical and mechanical
properties. Indeed, much of the exploration of quantum materials in recent years including …

While polarons, charges bound to a lattice deformation induced by electron–phonon
coupling, are primary photoexcitations in bulk metal-halide hybrid organic–inorganic …

Understanding microscopic processes in materials and devices that can be switched by light
requires experimental access to dynamics on nanometer length and femtosecond time …

The advent of pump-probe spectroscopy techniques paved the way to the exploration of
ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption …

Interactions among and between electrons and phonons steer the energy flow in photo-
excited materials and govern the emergence of correlated phases. The strength of electron …

The temporal characters of laser-driven phase transition from 2 H to 1 T′ has been
investigated in the prototype MoTe 2 monolayer. This process is found to be induced by …

Detection of the energy conversion pathways between photons, charge carriers, and the
lattice is of fundamental importance to understand fundamental physics and to advance …

Ultrafast spectroscopies can access the dynamics of electrons and nuclei at short
timescales, shedding light on nonequilibrium phenomena in materials. However …