Light-matter interactions refer to the interactions between electromagnetic radiation (light) and matter. This research area explores how light interacts with various forms of matter, such as atoms, molecules, and nanoparticles, and how these interactions can be manipulated and controlled for various applications. Researchers studying light-matter interactions investigate phenomena such as absorption, emission, scattering, and transmission of light by different materials. They also explore the effects of factors such as the wavelength, intensity, polarization, and coherence of light on these interactions. Applications of research in light-matter interactions include the development of advanced materials for optical and photonic devices, sensors, and imaging techniques. Understanding how light interacts with matter at the nanoscale is also essential for fields such as quantum optics, nanophotonics, and quantum information processing.