Basic of Laser Physics: Application

Laser Physics presents a clear and systematic introduction to the fundamental principles, operation, characteristics, and applications of lasers. The book begins with the basic concepts of electromagnetic radiation and atomic energy levels and develops the theory of absorption, spontaneous emission, and stimulated emission.The book also introduces important topics such as coherence, monochromaticity, directionality, laser intensity, polarization, nonlinear optical phenomena, and laser applications in medicine, communication, industry, scientific research, and technology.Written in a simple and student-friendly manner, this book is designed to help B.Sc. and undergraduate physics students develop a strong conceptual understanding of laser physics. Mathematical expressions, important equations, diagrams, examples, and review questions make the subject easier to understand and suitable for academic study and examination preparation.