Strong-field physics is a branch of physics that deals with the study of electromagnetic fields that are intense enough to significantly alter the behavior of atoms and molecules. In strong-field physics, researchers investigate the interaction between these intense fields and matter, with a focus on understanding and manipulating the dynamics of electrons and ions in these extreme conditions. This field has applications in areas such as laser technology, quantum mechanics, and particle physics. Studies in strong-field physics have led to breakthroughs in areas like attosecond science, high-harmonic generation, and laser-driven particle acceleration.