Phase Transformations And Ablation In Laser Treated Solids

Uses a unified standpoint to describe the principal physical processes that determine the possibility and practical effectiveness of utilizing lasers for the modification and ablation of solids. Analyzes the general mechanisms and laws operative in the course of laser treatment of various materials including metal alloys, rocks, oxides, high-temperature superconductors and hard biological tissues. The chapters on laser-induced solid state thermochemical reactions and phase transitions in high-temperature superconductors under laser radiation break new ground.

The book introduces ‘the state of the art' of pulsed laser ablation and its applications. It is based on recent theoretical and experimental studies. The book reaches from the basics to advanced topics of pulsed laser ablation. Theoretical and experimental fundamental phenomena involved in pulsed laser ablation are discussed with respect to material properties, laser wavelength, fluence and intensity regime of the light absorbed linearly or non-linearly in the target material. The energy absorbed by the electrons leads to atom/molecule excitation, ionization and/or direct chemical bond breaking and is also transferred to the lattice leading to material heating and phase transitions. Experimental non-invasive optical methods for analyzing these phenomena in real time are described. Theoretical models for pulsed laser ablation and phase transitions induced by laser beams and laser-vapour/plasma interaction during the plume expansion above the target are also presented. Calculations of the ablation speed and dimensions of the ablated micro- and nano-structures are performed. The validity and required refinement of different models in different experimental conditions is provided. The pulsed laser deposition process which bases on collecting the ablated particles on a surface is analyzed in terms of efficiency and quality of the deposited films as a function of ambient conditions, target material, laser parameters and substrate characteristics. The interaction between the incident laser and the ablation plasma is analyzed with respect to its influence on the structures of the deposited films and its capacity to generate high harmonics and single attosecond pulses which are highly desirable in pump-probe experiments.

Laser Processing and Chemistry gives an overview of the fundamentals and applications of laser-matter interactions, in particular with regard to laser material processing. Special attention is given to laser-induced physical and chemical processes at gas-solid, liquid-solid, and solid-solid interfaces. Starting with the background physics, the book proceeds to examine applications of laser techniques in micro-machining, and the patterning, coating, and modification of material surfaces. This third edition has been revised and enlarged to cover new topics such as the synthesis of nanoclusters and nanocrystalline films, ultrashort-pulse laser processing, laser polishing, cleaning, and lithography. Graduate students, physicists, chemists, engineers, and manufacturers alike will find this book an invaluable reference work on laser processing.

The invention of the laser was one of the towering achievements of the twentieth century. At the opening of the twenty-first century we are witnessing the burgeoning of the myriad technical innovations to which that invention has led. The Handbook of Laser Technology and Applications is a practical and long-lasting reference source for scientists and engineers who work with lasers. The Handbook provides, a comprehensive guide to the current status of lasers and laser systems; it is accessible to science or engineering graduates needing no more than standard undergraduate knowledge of optics. Whilst being a self-contained reference work, the Handbook provides extensive references to contemporary work, and is a basis for studying the professional journal literature on the subject. It covers applications through detailed case studies, and is therefore well suited to readers who wish to use it to solve specific problems of their own. The first of the three volumes comprises an introduction to the basic scientific principles of lasers, laser beams and non-linear optics. The second volume describes the mechanisms and operating characteristics of specific types of laser including crystalline solid - state lasers, semiconductor diode lasers, fibre lasers, gas lasers, chemical lasers, dye lasers and many others as well as detailing the optical and electronic components which tailor the laser's performance and beam delivery systems. The third volume is devoted to case studies of applications in a wide range of subjects including materials processing, optical measurement techniques, medicine, telecommunications, data storage, spectroscopy, earth sciences and astronomy, and plasma fusion research. This vast compendium of knowledge on laser science and technology is the work of over 130 international experts, many of whom are recognised as the world leaders in their respective fields. Whether the reader is engaged in the science, technology, industrial or medical applications of lasers or is researching the subject as a manager or investor in technical enterprises they cannot fail to be informed and enlightened by the wide range of information the Handbook supplies.

The invention of the laser was one of the towering achievements of the twentieth century. At the opening of the twenty-first century we are witnessing the burgeoning of the myriad technical innovations to which that invention has led. The Handbook of Laser Technology and Applications is a practical and long-lasting reference source for scientists a

Photo-Excited Processes, Diagnostics and Applications covers the area of photo-excitation and processing of materials by photons from the basic principles and theories to applications, from IR to x-rays, from gas phase to liquid and solid phases. The various chapters give a wide spectral view of this developing field. Twelve leading groups worldwide set down to write this book during the past two years which include the most updated techniques used in their laboratories for investigating photo-excited processes and new applications. This book will be useful to scientists and engineers who have a strong interest in photo-assisted processes development for microelectronics and photonics.

This book provides surgeons with important insights into laser technologies as well as a sound understanding of their current and potential applications within oral and maxillofacial surgery and related disciplines. The opening chapters focus on the relevant physical background, the technology of the typically used lasers, laser–tissue interactions, and the treatment systems. Detailed information is then provided on the various established applications of laser treatments, including in relation to skin and mucosa and the dental hard tissues and bone. Special applications are also described, for example with respect to periodontal surgery, peri-implantitis therapy, photodynamic treatment, holography and additive manufacturing. The book closes by examining technologies that will soon be available for application in hospitals, topics which are currently the subject of research, and laser safety. Beyond surgeons, the book will be of value for engineers and scientists working in the field of medical engineering using lasers.