Photonics and LASER: Foundations, Advances, and Applications
Abstract Photonics, the science of light generation, manipulation, and detection, has become a cornerstone of modern technology. Central to this discipline is the LASER (Light Amplification by Stimulated Emission of Radiation), which revolutionized communication, medicine, manufacturing, and defense. This article explores the theoretical foundations of photonics, the principles of LASER operation, material platforms, and emerging applications. The discussion highlights the synergy between photonics and LASER technologies, situating them as transformative drivers of 21st-century innovation. Keywords: Photonics, LASER, quantum optics, fiber optics, nonlinear optics, biophotonics 1. Introduction Photonics integrates physics, engineering, and materials science to study light as both particle and wave. Since the invention of the LASER in 1960, photonics has expanded into telecommunications, energy harvesting, biomedical imaging, and quantum in...
