Author: Aleksey Mikhaylovich Komashko
Publisher:
ISBN:
Category :
Languages : en
Pages : 480

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Book Description

Author: Stefan Nolte
Publisher: Springer
ISBN: 3319176595
Category : Science
Languages : en
Pages : 365

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Book Description
Ultrashort laser pulses with durations in the femtosecond range up to a few picoseconds provide a unique method for precise materials processing or medical applications. Paired with the recent developments in ultrashort pulse lasers, this technology is finding its way into various application fields. The book gives a comprehensive overview of the principles and applications of ultrashort pulse lasers, especially applied to medicine and production technology. Recent advances in laser technology are discussed in detail. This covers the development of reliable and cheap low power laser sources as well as high average power ultrashort pulse lasers for large scale manufacturing. The fundamentals of laser-matter-interaction as well as processing strategies and the required system technology are discussed for these laser sources with respect to precise materials processing. Finally, different applications within medicine, measurement technology or materials processing are highlighted.

Author: Haley Kerrigan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
There is a critical need for powerful laser-based tools that operate over kilometers of free space. Advances in laser technology have yielded lasers with sufficient energy to induce a number of physical effects in targets. However, there are many challenges in projecting damage-inducing laser intensities to large distances in outdoor environments. Laser intensities sufficient to ablate materials and produce plasma can be projected to multiple kilometers from the source with the filamentation of ultrashort pulses, a nonlinear phenomenon that eliminates the need for large focusing optics. During filamentation, Kerr-self focusing generates high intensities along the propagation axis which create plasma and the subsequent defocusing of laser light. These nonlinear processes that facilitate long-range high-intensity laser propagation, clamp the peak pulse intensity to 1013-1014 W/cm2 in the case of an ultrashort pulse centered at 800 nm in air, limiting the effects induced by filament interactions. This thesis dissertation investigates several techniques to improve filament interactions with targets for long-range applications. Several interaction modalities, including ablation, plasma creation, and the formation of shockwaves, can be enhanced by supplementing the clamped filament intensity with additional laser radiation. The secondary irradiation is investigated in the form of a lower-intensity nanosecond pulse or burst of femtosecond filaments. The complex ablation and plasma physics involved in these multi-pulse interactions are explored through multiple experiments conducted with the Multi-Terawatt Femtosecond Laser at the University of Central Florida. Investigations of filament propagation and interaction science at the kilometer range are conducted at the Townes Institute Science and Technology Experimentation Facility, a secure outdoor propagation range. This research has generated valuable knowledge on the formation, properties, and applications of filaments over distances up to 1 km, which is critical for long-range applications.

Author: Wolfgang Kaiser
Publisher: Springer Science & Business Media
ISBN: 3540473033
Category : Science
Languages : en
Pages : 500

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Book Description
This second edition in paperback provides an up-to-date review of the state of the art in different generation processes for ultrashort laser pulses. Inaddition, extensive applications in a wide range of fields - in physics,engineering, chemistry, and biology - are discussed: Eight chapters dealwith the following topics: -the generation of picosecond and femtosecond laser pulses -nonlinear wave interactions - new investigations in solid-state physics - recent progress in optoelectronics - advances in coherent material excitations - ultrafast vibrational lifetimes and energy redistribution in liquids - new observations of chemical reactions in the liquid state - the primary processes of important biological systems The book is essential reading for scientists and engineers who want to know what is going on in this rapidly advancing field. It should also interest graduate students and others who seek an introduction to laserpulses.

Author: Wolfgang Kaiser
Publisher: Springer Science & Business Media
ISBN: 3662025469
Category : Science
Languages : en
Pages : 434

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Book Description
Ten years ago, Stanley L. Shapiro edited the book entitled Ultrashort Light Pulses (Topics Appl. Phys., Vol. 18), which was written by eight experts in the field. Six years later, Charles V. Shank added a bibliography (1980-1983) in the second edition with approximately one thousand new references. During the past decade the field has grown so rapidly that a completely new book had to be written. In particular, the reduction of the time scale of light pulses into the femtosecond range has opened up new experimental possibilities never even foreseen in the preceding literature. The vast literature with countless ideas and applications makes it impossible for a single person to write a comprehensive review. Nine scientists, actively working in the field since its beginning, have decided to join forces to prepare a new book describing the present state of the art. Emphasis is placed on the generation and numerous applications of ultrashort laser pulses. This book covers a wide area of science: physics, engineering, chemistry, and biology. The various chapters and sections are prepared in each case such that the reader is given a brief introduction to the specific subject. Ample references for a more detailed study are given at the end of each chapter.

Author: John Dowden
Publisher: Springer
ISBN: 331956711X
Category : Science
Languages : en
Pages : 442

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Book Description
The revised edition of this important reference volume presents an expanded overview of the analytical and numerical approaches employed when exploring and developing modern laser materials processing techniques. The book shows how general principles can be used to obtain insight into laser processes, whether derived from fundamental physical theory or from direct observation of experimental results. The book gives readers an understanding of the strengths and limitations of simple numerical and analytical models that can then be used as the starting-point for more elaborate models of specific practical, theoretical or commercial value. Following an introduction to the mathematical formulation of some relevant classes of physical ideas, the core of the book consists of chapters addressing key applications in detail: cutting, keyhole welding, drilling, arc and hybrid laser-arc welding, hardening, cladding and forming. The second edition includes a new a chapter on glass cutting with lasers, as employed in the display industry. A further addition is a chapter on meta-modelling, whose purpose is to construct fast, simple and reliable models based on appropriate sources of information. It then makes it easy to explore data visually and is a convenient interactive tool for scientists to improve the quality of their models and for developers when designing their processes. As in the first edition, the book ends with an updated introduction to comprehensive numerical simulation. Although the book focuses on laser interactions with materials, many of the principles and methods explored can be applied to thermal modelling in a variety of different fields and at different power levels. It is aimed principally however at academic and industrial researchers and developers in the field of laser technology.

Author: Paul Gibbon
Publisher: World Scientific
ISBN: 1911298844
Category : Science
Languages : en
Pages : 328

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Book Description
This book represents the first comprehensive treatment of the subject, covering the theoretical principles, present experimental status and important applications of short-pulse laser-matter interactions.Femtosecond lasers have undergone dramatic technological advances over the last fifteen years, generating a whole host of new research activities under the theme of “ultrafast science”. The focused light from these devices is so intense that ordinary matter is torn apart within a few laser cycles. This book takes a close-up look at the exotic physical phenomena which arise as a result of this new form of “light-matter” interaction, covering a diverse set of topics including multiphoton ionization, rapid heatwaves, fast particle generation and relativistic self-channeling. These processes are central to a number of exciting new applications in other fields, such as microholography, optical particle accelerators and photonuclear physics.Repository for numerical models described in Chapter 6 can be found at www.fz-juelich.de/zam/cams/plasma/SPLIM/./a

Author: Jean-Claude Diels
Publisher: Elsevier
ISBN: 0080466400
Category : Science
Languages : en
Pages : 675

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Book Description
Ultrashort Laser Pulse Phenomena, Second Edition serves as an introduction to the phenomena of ultra short laser pulses and describes how this technology can be used to examine problems in areas such as electromagnetism, optics, and quantum mechanics. Ultrashort Laser Pulse Phenomena combines theoretical backgrounds and experimental techniques and will serve as a manual on designing and constructing femtosecond ("faster than electronics") systems or experiments from scratch. Beyond the simple optical system, the various sources of ultrashort pulses are presented, again with emphasis on the basic concepts and how they apply to the design of particular sources (dye lasers, solid state lasers, semiconductor lasers, fiber lasers, and sources based on frequency conversion). - Provides an easy to follow guide through "faster than electronics" probing and detection methods - THE manual on designing and constructing femtosecond systems and experiments - Discusses essential technology for applications in micro-machining, femtochemistry, and medical imaging

Author: Claude Rulliere
Publisher: Springer Science & Business Media
ISBN: 0387266747
Category : Science
Languages : en
Pages : 438

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Book Description
This smooth introduction for advanced undergraduates starts with the fundamentals of lasers and pulsed optics. Thus prepared, the student is introduced to short and ultrashort laser pulses, and learns how to generate, manipulate, and measure them. Spectroscopic implications are also discussed. The second edition has been completely revised and includes two new chapters on some of the most promising and fast-developing applications in ultrafast phenomena: coherent control and attosecond pulses.

Author: M. D. Galanin
Publisher:
ISBN:
Category : Laser pulses, Ultrashort
Languages : en
Pages : 152

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Book Description
Translation of the Russian original (Nauka Pub., 1984). Time and place of the proceedings are not specified. Problems of generating and amplifying ultrashort pulses in condensed media at low temperatures are examined. Primary attention is devoted to the investigation of continuous x-ray emission, la