In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic
phenomena and systems as they appear in the literature on quantum materials and …

In the 60 years since the invention of the laser, the scientific community has developed
numerous fields of research based on these bright, coherent light sources, including the …

Over the last few years, extraordinary advances in experimental and theoretical tools have
allowed us to monitor and control matter at short time and atomic scales with a high degree …

In van der Waals (vdW) materials, strong coupling between different degrees of freedom can
hybridize elementary excitations into bound states with mixed character,–. Correctly …

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 …

We propose a systematic way of constructing Floquet second-order topological insulators
(SOTIs) based on time-glide symmetry, a nonsymmorphic space-time symmetry that is …

Controlled excitation of materials can transiently induce changed or novel properties with
many fundamental and technological implications. Especially, the concept of Floquet …

In the last decade, there has been a proliferation of laser sources for time-and angle-
resolved photoemission spectroscopy (TR-ARPES), building on the proven capability of this …

We explore pump-probe high harmonic generation (HHG) from monolayer hexagonal-boron-
nitride, where a terahertz pump excites coherent optical phonons that are subsequently …

Two-dimensional materials equipped with strong spin–orbit coupling can display novel
electronic, spintronic, and topological properties originating from the breaking of time or …