Nonlinear Optical Crystals: Properties and Applications in Quantum Electronics The Handbook, written by Gurzadyan, Dmitriev and Nikogosyan, is a unique work that immerses the reader in the exciting world of nonlinear optics and quantum electronics. This publication will become an indispensable assistant for students, graduate students, researchers and practitioners in the field of physics, materials science and optics. The book examines in detail the properties of nonlinear optical crystals, their structure and behavior under the influence of light. The authors not only explain the theoretical foundations, but also give practical examples of the use of these crystals in modern technologies. The reader will be able to learn how nonlinear optical crystals are used to create lasers, generate ultrashort pulses and in other high-tech devices. This information will be especially useful for those who are interested in the latest achievements in the field of quantum electronics and strive to be aware of current trends. The book is addressed to a wide audience: from students studying physics and engineering sciences to experienced professionals working in scientific laboratories and industrial companies. If you are passionate about new technologies, want to understand how modern optical devices work, or just interested in science, this publication will be a real discovery for you. The topics raised in the book cover a wide range of topics, from the basics of nonlinear optics to complex synthesis methods and crystal characteristics. The authors emphasize the importance of nonlinear optical effects in modern scientific research and their importance for the development of new technologies. The reader will be able to evaluate how these crystals affect the efficiency and accuracy of optical systems, as well as their capabilities in the field of quantum information and computing. The style of the authors is distinguished by clarity and accessibility of presentation, which makes complex scientific concepts understandable even for those who are just starting their way in this area. Gurzadyan, Dmitriev and Nikogosyan are well-known specialists whose work has already proven itself in the scientific community. Their previous publications on optics and materials science have also been praised and recognized, which adds additional value to this handbook. Nonlinear Optical Crystals: Properties and Applications in Quantum Electronics Directory" is not just a collection of facts and data, but a real encyclopedia of knowledge that inspires new ideas and experiments. It will be a great addition to the library of everyone who seeks to understand and master the complex but fascinating aspects of quantum electronics. If you are looking for information about nonlinear optical crystals, their properties and application in modern technologies, this book will become your reliable guide. Do not miss the opportunity to immerse yourself in the world of science and discover new horizons that this unique work offers.