Illuminating the Foundations and Frontiers of Light: Physics, Applications, and Interdisciplinary Perspectives
Abstract Light, as both a fundamental physical entity and a cultural metaphor, remains central to scientific progress and technological innovation. This article provides a comprehensive review of light’s theoretical foundations, physical properties, and applications across diverse fields. We integrate classical electromagnetic theory, quantum optics, and emerging photonic technologies, while also considering philosophical and cultural dimensions. The discussion highlights current research directions in quantum photonics, biophotonics, and optical computing, underscoring light’s enduring role in shaping knowledge and society. 1. Introduction The study of light has evolved from ancient philosophical speculation to a cornerstone of modern physics. Newton’s corpuscular theory, Huygens’ wave model, Maxwell’s electromagnetic framework, and Einstein’s photon hypothesis collectively shaped our understanding of light’s dual nature. Today, light is indispensable in communication, medicine, energ...
