About the Author

       The author possesses an M.Sc Degree in physics and a doctorate degree in Quantum Chemistry. He joined DRDO in November 1970. Since then, he worked in various projects like development of transversely excited atmospheric pressure CO₂ laser, pyroelectric detector, surface acoustic wave device, and finally on the development of acousto-optic devices. He worked on the acousto-­optic devices for over 17 years and developed several acousto-optic devices both in the bulk acoustic as well as in surface acoustic integrated optic version. After his retirement in 1997, he worked as consultant for two years in DRDO on the development of chemical oxygen iodine laser. He has published 23 papers in various international journals.

        The book Is a balanced presentation of theory, fabrication and characterisation techniques and application of the acousto-optic devices. It is written with a view to help a beginner who wants to enter in this field, but does not know where to start and search in the vast available literature. Without going into tedious mathematics, the author has tried to make aware the underlying principles of topics like convolvers and correlators. From the applications point of view, applications of these devices have been given in detail which have direct relevance with the defence equipment technology.