English

Laser Physics And Applications

Among the outstanding achievements of science and engineering in the 20th century, the laser occupies by right a major position. First lasers made in 1960 paved the way for the vehement development of laser technology. Today, lasers and laser systems find wide lise in many fields of science and engineering. They are employed in communications systems, computers, navigation equipment, measuring instruments, and in complicated technological processes. Biology, medicine, and various chemical and physical investigations utilize lasers to advantage. Wide use of lasers in science and technology is due to the specific properties of laser radiation. The laser is a generator of coherent light. Unlike other sources of light, such as incandescent lamps or arc lamps, the laser produces radiation with a highly regular light field, outstanding in its high coherence, monochromaticity and directivity. The discussion of lasers in this book begins with the evaluation of the physics of processes resulting in coherent optical radiation in the laser. This is the subject to Chapter 1. Chapter 2 takes up the classification of lasers and the physical and engineering benefits of various types of lasers. Ap

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