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.
Laser Basics •What is a Laser? • Stimulated Emission, Population Inversion, Cavities • Some examples. Ency of Laser Physics & Technology, RP Photonics. It covers all main topics in laser physics, from historical ruby lasers to the. Account of laser physics, extending from basic background. Pdf: 160.13 KB. 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.
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. Application of lasers puts in the forefront the control of laser radiation. This includes not only such aspects of beam control as deflection, scanning and modulation, but also the variation of the regime of oscillation to produce radiation with the desired spatial, temporal, frequency and power characteristics.
All these topics are treated in Chapter 3. Finally, Chapter 4 is concerned with diverse applications of lasers in science and engineering.
The book was translated from the Russian by M. Edelev and was first published by Mir Publishers in 1986.
• • Abstract Following the history of lasers and, in parallel, the applications in medicine demonstrates the continuous improvement of insight into laser reactions and development of devices. Understanding the characteristics of photons and light is the basis for all applications in medical diagnosis and therapy. Knowledge about the physical principle of lasers will convince you that there is no mystery behind lasers. Lasers can be designed in different ways and thus be optimised to the intended use.
Laser radiation, depending on the wavelength and the mode of operation, is a powerful tool to treat patients, but it also can be dangerous if safety instructions are ignored. An overview about the different types of medical lasers actually on the market facilitates the right choice of a laser system for the specific application. Download Wars.