Time-resolved spectroscopies provide material scientists with high temporal resolution to characterize physical processes in a variety of complex and emerging materials, ranging from semiconductors and dielectrics to metals and superconductors. Recent advances in pulsed laser technologies have enabled ultrafast probes to explore a wide energy range from deep ultraviolet to the mid-infrared and terahertz, resulting in new perspectives of material characteristics that encompass optical, electronic, magnetic, thermal, and structural properties. The fundamental knowledge is further expanded to high spatial resolution via innovative microscopies and tip-based techniques coupled with ultrafast lasers. These emerging experimental methods are fueling many technologically and fundamentally relevant discoveries in various systems, including those which constitute biological matter, quantum materials, and materials for energy conversion and storage. Moreover, recent developments in pulsed X-ray and electron sources have further enabled material scientists to track the dynamic structural evolution under ultrafast photoexcitation, to reveal and access metastable material phases with unconventional structure-property relationships. This symposium brings together a unique and diverse set of ultrafast spectroscopies (e.g., optical, terahertz, X-ray, electron beam, quantum metrology) and material scientists to converge established and emerging techniques and to explore novel approaches to solve grand material science problems in quantum and energy sciences.

2D materials electrical properties optical properties organic perovskites quantum materials spectroscopy transmission electron microscopy (TEM) x-ray diffraction (XRD)