This Book On Lasers Is The Culmination Of Several Years Of Relentless Personal Research, Exhaustive Literature Survey, Critical Analysis Of All The Facets Of The Subject And Interactions With The Subject Experts And Students In India And Abroad, By The Author.This Book Has Been Very Systematically Structured And Organised. The Subject Has Been Divided Into Three Parts. Part A Deals With All The Established Principles And Theories Of Laser Science Prefixed With A Journey Through The Relevant Areas Of Optics And Modern Physics. Part B Presents A Galaxy Of All The Available Laser Schemes Of The Day, With A Peep Into The Future. Part C Deals With The Myriads Of Applications Of This 'Wonder Beam' In Every Walk Of Life.While Giving An Exhaustive Account About Lasers, The Book Also Covers All The, Relevant Aspects Of Related Subjects Such As Fibre Optics, Holography, Laser Safety Etc. Apart From The Excellent Presentation Of The Topics, As They Unfold, This Book Contains A Rich Fund Of Worked Out Examples And Student Exercises, With Answers.The Language Is Simple And Reader-Friendly, The Treatise Logical, And Even The Intricate Mathematical Derivations And Clear And Lucid. This Book Is Meant To Be A Very Valuable Guide To Students At Graduate And Postgraduate Levels And To Those Working Or Intending To Work In The Field Of Lasers, To Add To What They Already Know. This Is Perhaps The Only Book, At Present, On Lasers By An Indian Author With Such A Vast Coverage Of The Subject Itself And The Associated Disciplines.
This Book Presents A Comprehensive Overview Of The Present Day Status Of Optical Fibre And Laser Technology, Stating Their Principles And Various Applications Including Optical Telecommunications Largely Avoiding Mathematical Treatment.Keeping The Idea In Mind That We Understand The Subject Better By Doing Experiments On It, Large Number Of Experiments On Laser And Optical Fibre Have Been Included Starting From Very Simple Demonstration To Complicated Ones.Some Theoretical Discussions Are Also Included In The Appendix As A Ready Reference. These Are - Dual Nature Of Light, Electromagnetic Wave, Interference, Diffraction And Polarization Of Light, Propagation Modes Through Optical Fibre Waveguide, Basic Digital Communication And Networking In Telecommunication.The Curricula Of These Emerging Fields Of Study Are Constantly Being Updated With The Rapid Growth Of Technology. With This View In Mind, The Areas Beyond The Present Day Curriculum Of Degree / Diploma Engineering Level Have Also Been Covered In This Book. The Students Of Degree / Diploma Engineering In Electronics / Electronics & Telecommunication As Well As Students Of Any Other Engineering Discipline And Undergraduate Applied Physics Would Find This Book Well Informative. The Post Graduate Students / Readers With Advanced Knowledge Can Also Use This Book For Ready Reference.
A device that releases a beam of coherent light through optical amplification is called a laser. Laser stands for light amplification by stimulated emission of radiation. There are various components of a laser. It consists of gain medium, high reflector, laser pumping energy, laser beam and output coupler. The scientific study of theory and practice of lasers is known as laser science. Lasers have high temporal coherence. It allows them to emit light with a narrow spectrum. Laser beam profiler is used in measuring width, divergence and intensity profile of laser beams. Various types of lasers include gas lasers, semiconductor lasers, solid-state lasers, etc. Lasers are used in weapons, DNA sequencing instruments, printing, cutting and welding, lithography, small hand-held devices like laser pointers, etc. Laser medicine is the use of laser in medical diagnosis, treatments and therapies such as laser mammography, laser hair removal, laser surgery, etc. This book provides comprehensive insights into the field of laser science. Some of the diverse topics covered herein address the varied branches that fall under this category. This book is meant for students who are looking for an elaborate reference text on lasers.
This new resource provides an insight into the physical principles of the device technology that underpins many laser-based military systems in one form or another. From this knowledge a deeper understanding of the fundamental requirements and the potential performance, as well as limitations of such systems may be assessed, given the appropriate operational parameters. Engineers and students are provided with practical advice on how to evaluate laser devices and systems, operate them safely, and train with them.
Although the basic principles of lasers have remained unchanged in the past 20 years, there has been a shift in the kinds of lasers generating interest. Providing a comprehensive introduction to the operating principles and applications of lasers, this second edition of the classic book on the subject reveals the latest developments and applications of lasers. Placing more emphasis on applications of lasers and on optical physics, the book's self-contained discussions will appeal to physicists, chemists, optical scientists, engineers, and advanced undergraduate students.
Sensing and Measurement is the key technology area in the development of these lasers. Advanced sensing and measurement technologies are required to acquire, analyze and transform data into information that is useful to enhance the performance and capabilities of these lasers systems.The goal of this book is therefore to enable scientists and technologists working in rather complex area of chemical lasers to achieve the best technical performances. Till now such topics havebeen covered scantly in open literature and that too in the research papers only.
Laser welding is a rapidly developing and versatile technology which has found increasing applications in industry and manufacturing. It allows the precision welding of small and hard-to-reach areas, and is particularly suitable for operation under computer or robotic control. The Handbook of laser welding technologies reviews the latest developments in the field and how they can be used across a variety of applications. Part one provides an introduction to the fundamentals of laser welding before moving on to explore developments in established technologies including CO2 laser welding, disk laser welding and laser micro welding technology. Part two highlights laser welding technologies for various materials including aluminium and titanium alloys, plastics and glass. Part three focuses on developments in emerging laser welding technologies with chapters on the applications of robotics in laser welding and developments in the modelling and simulation of laser and hybrid laser welding. Finally, part four explores the applications of laser welding in the automotive, railway and shipbuilding industries. The Handbook of laser welding technologies is a technical resource for researchers and engineers using laser welding technologies, professionals requiring an understanding of laser welding techniques and academics interested in the field. Provides an introduction to the fundamentals of laser welding including characteristics, welding defects and evolution of laser welding Discusses developments in a number of techniques including disk, conduction and laser micro welding Focusses on technologies for particular materials such as light metal alloys, plastics and glass
Broadly tunable lasers continue to have a tremendous impact in many and diverse fields of science and technology. From a renaissance in laser spectroscopy to Bose-Einstein condensation, the one nexus is the tunable laser. Tunable Laser Applications describes the physics and architectures of widely applied tunable laser sources. Fully updated and ex
Principles of Laser Materials Processing Authoritative resource providing state-of-the-art coverage in the field of laser materials processing, supported with supplementary learning materials Principles of Laser Materials Processing goes over the most recent advancements and applications in laser materials processing, with the second edition providing a welcome update to the successful first edition through updated content on the important fields within laser materials processing. The text includes solved example problems and problem sets suitable for the readers’ further understanding of the technology explained. Split into three parts, the text first introduces basic concepts of lasers, including the characteristics of lasers and the design of their components, to aid readers in their initial understanding of the technology. The text then reviews the engineering concepts that are needed to analyze the different processes. Finally, it delves into the background of laser materials and provides a state-of-the-art compilation of material in the major application areas, such as laser cutting and drilling, welding, surface modification, and forming, among many others. It also presents information on laser safety to prepare the reader for working in the industry sector and provide practicing engineers the updates needed to work safely and effectively. In Principles of Laser Materials Processing, readers can expect to find specific information on: Laser generation principles, including basic atomic structure, atomic transitions, population distribution, absorption, and spontaneous emission Optical resonators, including standing waves in a rectangular cavity, planar resonators, beam modes, line selection, confocal resonators, and concentric resonators Laser pumping, including optical pumping, arc/flash lamp pumping, energy distribution in the active medium, and electrical pumping Broadening mechanisms, including line-shape functions, homogeneous broadening such as natural and collision, and inhomogeneous broadening Principles of Laser Materials Processing is highly suitable for senior undergraduate and graduate students studying laser processing, and non-traditional manufacturing processes; it is also aimed at researchers to provide additional information to be used in research projects that are to be undertaken within the technology field.
This comprehensive handbook gives a fully updated guide to lasers and laser technologies, including the complete range of their technical applications. The first volume outlines the fundamental components of lasers, their properties, and working principles. Key Features: • Offers a complete update of the original, bestselling work, including many brand-new chapters. • Deepens the introduction to fundamentals, from laser design and fabrication to host matrices for solid-state lasers, energy level diagrams, hosting materials, dopant energy levels, and lasers based on nonlinear effects. • Covers new laser types, including quantum cascade lasers, silicon-based lasers, titanium sapphire lasers, terahertz lasers, bismuth-doped fiber lasers, and diode-pumped alkali lasers. • Discusses the latest applications, e.g., lasers in microscopy, high-speed imaging, attosecond metrology, 3D printing, optical atomic clocks, time-resolved spectroscopy, polarization and profile measurements, pulse measurements, and laser-induced fluorescence detection. • Adds new sections on laser materials processing, laser spectroscopy, lasers in imaging, lasers in environmental sciences, and lasers in communications. This handbook is the ideal companion for scientists, engineers, and students working with lasers, including those in optics, electrical engineering, physics, chemistry, biomedicine, and other relevant areas.
Africa’s dire need to industrialize is universally acknowledged and it is evident that the continent’s vast mineral resources can catalyze that industrialization. This requires the promotion of local beneficiation and value addition of minerals to yield materials on which modern Africa’s industry and society can rely. This book is, therefore, about transforming Africa’s comparative advantages in minerals into the continent’s competitive edge regarding materials. Mineral beneficiation and value addition form the basis and provide opportunities for mineral-driven Africa’s industrialization. The scope of the book is three-fold with inter-connected relationships: Information, Technical, and Policy oriented. It will be a useful reference material for mining undergraduate students on beneficiation and value addition of each of the minerals found in Africa. The book, while presenting a broad overview of beneficiation and value addition of Africa’s minerals, provides crucial starting material for postgraduate research students and R&D institutions who wish to delve into more advanced methods of extraction and utilization of mineral-derived materials that are in Africa for the purpose of industrialization of the continent.