Bøger af Ajoy Ghatak

An understanding of quantum mechanics is vital to all students of physics, chemistry and electrical engineering, but requires a lot of mathematical concepts, the details of which are given with great clarity in this book. Various concepts have been derived from first principles, so it can also be used for self-study. The chapters on the JWKB approximation, time-independent perturbation theory and effects of magnetic field stand out for their clarity and easy-to-understand mathematics. Two complete chapters on the linear harmonic oscillator provide a very detailed discussion of one of the most fundamental problems in quantum mechanics. Operator algebra is used to show the ease with which one can calculate the harmonic oscillator wave functions and study the evolution of the coherent state. Similarly, three chapters on angular momentum give a detailed account of this important problem. Perhaps the most attractive feature of the book is the excellent balance between theory and applications and the large number of applications in such diverse areas as astrophysics, nuclear physics, atomic and molecular spectroscopy, solid-state physics, and quantum well structures.

Updated and revised, this second edition provides a coherent presentation of the basic physics behind lasers, along with some of their most important applications. Numerical examples are scattered throughout the book, and problems are included at the end of each chapter.

This comprehensive book provides an introduction to the physical principles of optical fibres, and discusses in detail their use in sensor technology and modern optical communication systems. It will be an ideal textbook for undergraduate or graduate students taking courses in optical fiber communications, photonics, or optoelectronics.

A collection of problems in electromagnetics for the undergraduate level, this book covers the basics and some applied aspects. It includes problems in fundamental areas such as electrostatics, magnetostatics, wave propagation, reflection and refraction, and also in more complex areas such as magnetic circuits, metallic waveguides and dielectric waveguides.

Since the fabrication of the first laser in 1960, research and development in the area of optics has grown with tremendous speed. Optics has now become an extremely important area of study in schools, colleges and universities. The UN General Assembly has proclaimed 2015 as the International Year of Light and Light-Based Technologies. This book is a part of the celebration of the International Year of Light.

The Special Theory of Relativity is considered as one of the two major revolutions of the twentieth century. This title offers a brief biography of Einstein, before explaining (in an easy-to-understand manner) the basic physics and consequences of the Special Theory of Relativity.

Albert Einstein is still an icon for most people even though many other great scientists of the twentieth century have had more direct impact on our lives. Einstein's enduring public image has to do with the style of his science and social world around him. This book gives a glimpse of his science, philosophy, and his troubled personal life.

Ingeometrical optics, light propagation is analyzed in terms of light rays which define the path of propagation of light energy in the limitofthe optical wavelength tending to zero. Given the current interest and activity in optical fibers and optical communication, analysis of light propagation in inhomogeneous media is dealt with in great detail.

The equation of state was originally developed for ideal gases, and proved central to the development of early molecular and atomic physics. This book is an account of the equation of state and its applications in several topics in theoretical physics, chemistry and engineering.

An understanding of quantum mechanics is vital to all students of physics, chemistry and electrical engineering, but requires a lot of mathematical concepts, the details of which are given with great clarity in this book.

Ingeometrical optics, light propagation is analyzed in terms of light rays which define the path of propagation of light energy in the limitofthe optical wavelength tending to zero. Given the current interest and activity in optical fibers and optical communication, analysis of light propagation in inhomogeneous media is dealt with in great detail.

Fiber Optic Essentials starts with a basic discussion on lightwaves and the phenomenon of refraction and reflection. It then goes on to introduces the reader to the field of fiber optics and covers some of the recent developments, such as fiber amplifiers, dispersion compensation and nonlinear effects.