Ultrashort Pulse Laser Ablation of Bulk Materials Using Shaped Laser Beams

Ultrashort Pulse Laser Ablation of Bulk Materials Using Shaped Laser Beams PDF Author: Dmitriy Mikhaylov
Publisher: Cuvillier Verlag
ISBN: 3736964463
Category : Technology & Engineering
Languages : en
Pages : 176

Book Description
High precision, high quality, and high throughput of ultrashort pulse laser ablation of bulk material are the most demanded properties that are required to let this process technology compete with other micro-machining techniques. Previous attempts to increase volumetric ablation rates of ultrashort pulse laser processes were based on the increase of fluence or pulse repetition rates. They run into limitations mainly set by the occurrence of bumpy surfaces due to overheating of bulk material. In this work, the potential of laser beam shaping for the enhancement of ablation rates is studied systematically for the first time. The question regarding the physically shortest possible process time for ablation of 2.5D-structures by means of an ultrashort pulse laser is answered using a heat conduction model, which is extended by the ability to consider spatially shaped beams. The strategy of laser beam stamping is implemented in a novel optical setup and proven both theoretically and experimentally to have a great potential for increasing ablation rates.

Al-Si Alloys

Al-Si Alloys PDF Author: Francisco C. Robles Hernandez
Publisher: Springer
ISBN: 3319583808
Category : Technology & Engineering
Languages : en
Pages : 253

Book Description
This book details aluminum alloys with special focus on the aluminum silicon (Al‐Si) systems – that are the most abundant alloys second only to steel. The authors include a description of the manufacturing principles, thermodynamics, and other main characteristics of Al‐Si alloys. Principles of processing, testing, and in particular applications in the Automotive, Aeronautical and Aerospace fields are addressed.

Laser Ablation in Liquids

Laser Ablation in Liquids PDF Author: Guowei Yang
Publisher: CRC Press
ISBN: 9814241520
Category : Science
Languages : en
Pages : 1166

Book Description
This book focuses on the fundamental concepts and physical and chemical aspects of pulsed laser ablation of solid targets in liquid environments and its applications in the preparation of nanomaterials and fabrication of nanostructures. The areas of focus include basic thermodynamic and kinetic processes of laser ablation in liquids, and its applic

Optically Induced Nanostructures

Optically Induced Nanostructures PDF Author: Karsten König
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110383500
Category : Science
Languages : en
Pages : 360

Book Description
Nanostructuring of materials is a task at the heart of many modern disciplines in mechanical engineering, as well as optics, electronics, and the life sciences. This book includes an introduction to the relevant nonlinear optical processes associated with very short laser pulses for the generation of structures far below the classical optical diffraction limit of about 200 nanometers as well as coverage of state-of-the-art technical and biomedical applications. These applications include silicon and glass wafer processing, production of nanowires, laser transfection and cell reprogramming, optical cleaning, surface treatments of implants, nanowires, 3D nanoprinting, STED lithography, friction modification, and integrated optics. The book highlights also the use of modern femtosecond laser microscopes and nanoscopes as novel nanoprocessing tools.

Handbook of Laser Micro- and Nano-Engineering

Handbook of Laser Micro- and Nano-Engineering PDF Author: KOJI SUGIOKA.
Publisher:
ISBN: 9783319695372
Category : Lasers in engineering
Languages : en
Pages :

Book Description
This handbook provides a comprehensive review of the entire field of laser micro and nano processing, including not only a detailed introduction to individual laser processing techniques but also the fundamentals of laser-matter interaction and lasers, optics, equipment, diagnostics, as well as monitoring and measurement techniques for laser processing. Consisting of 11 sections, each composed of 4 to 6 chapters written by leading experts in the relevant field. Each main part of the handbook is supervised by its own part editor(s) so that high-quality content as well as completeness are assured. The book provides essential scientific and technical information to researchers and engineers already working in the field as well as students and young scientists planning to work in the area in the future. Lasers found application in materials processing practically since their invention in 1960, and are currently used widely in manufacturing. The main driving force behind this fact is that the lasers can provide unique solutions in material processing with high quality, high efficiency, high flexibility, high resolution, versatility and low environmental load. Macro-processing based on thermal process using infrared lasers such as CO2 lasers has been the mainstream in the early stages, while research and development of micro- and nano-processing are becoming increasingly more active as short wavelength and/or short pulse width lasers have been developed. In particular, recent advances in ultrafast lasers have opened up a new avenue to laser material processing due to the capabilities of ultrahigh precision micro- and nanofabrication of diverse materials. This handbook is the first book covering the basics, the state-of-the-art and important applications of the dynamic and rapidly expanding discipline of laser micro- and nanoengineering. This comprehensive source makes readers familiar with a broad spectrum of approaches to solve all relevant problems in science and technology. This handbook is the ultimate desk reference for all people working in the field.

Femtosecond Laser-Matter Interaction

Femtosecond Laser-Matter Interaction PDF Author: Eugene G. Gamaly
Publisher: CRC Press
ISBN: 9814241814
Category : Science
Languages : en
Pages : 370

Book Description
This is the first comprehensive treatment of the interaction of femtosecond laser pulses with solids at nonrelativistic intensity. It connects phenomena from the subtle atomic motion on the nanoscale to the generation of extreme pressure and temperature in the interaction zone confined inside a solid. The femtosecond laser-matter interaction has already found numerous applications in industry, medicine, and materials science. However, there is no consensus on the interpretation of related phenomena. With mathematics kept to a minimum, this is a highly engaging and readable treatment for students and researchers in science and engineering. The book avoids complex mathematical formulae, and hence the content is accessible to nontechnical readers. Useful summaries after each chapter provide compressed information for quick estimates of major parameters in planned or performed experiments. The book connects the basic physics of femtosecond laser-solid interactions to a broad range of applications. Throught the text, basic assumptions are derived from the first principles, and new results and ideas are presented. From such analyses, a qualitative and predictive framework for the field emerges, the impact of which on applications is also discussed.

CAD/CAM Robotics and Factories of the Future

CAD/CAM Robotics and Factories of the Future PDF Author: S. Narayanan
Publisher: Alpha Science Int'l Ltd.
ISBN: 9788173197925
Category : Social Science
Languages : en
Pages : 1112

Book Description
Presents state-of-the-art research and case studies from over 150 Design & Manufacturing professionals across the globe in the areas of CAD/CAM; Product Design; Rapid Prototyping and Tooling; Manufacturing Processes; Micromachining and Miniaturisation; Mechanism and Robotics; Artificial Intelligence; and Material Handling Systems.

Femtosecond Laser Micromachining

Femtosecond Laser Micromachining PDF Author: Roberto Osellame
Publisher: Springer Science & Business Media
ISBN: 364223366X
Category : Science
Languages : en
Pages : 485

Book Description
Femtosecond laser micromachining of transparent material is a powerful and versatile technology. In fact, it can be applied to several materials. It is a maskless technology that allows rapid device prototyping, has intrinsic three-dimensional capabilities and can produce both photonic and microfluidic devices. For these reasons it is ideally suited for the fabrication of complex microsystems with unprecedented functionalities. The book is mainly focused on micromachining of transparent materials which, due to the nonlinear absorption mechanism of ultrashort pulses, allows unique three-dimensional capabilities and can be exploited for the fabrication of complex microsystems with unprecedented functionalities.This book presents an overview of the state of the art of this rapidly emerging topic with contributions from leading experts in the field, ranging from principles of nonlinear material modification to fabrication techniques and applications to photonics and optofluidics.

Sample Introduction Systems in ICPMS and ICPOES

Sample Introduction Systems in ICPMS and ICPOES PDF Author: Diane Beauchemin
Publisher: Newnes
ISBN: 0444594833
Category : Science
Languages : en
Pages : 588

Book Description
Sample Introduction Systems in ICPMS and ICPOES provides an in-depth analysis of sample introduction strategies, including flow injection analysis and less common techniques, such as arc/spark ablation and direct sample insertion. The book critically evaluates what has been accomplished so far, along with what can be done to extend the capabilities of the technique for analyses of any type of sample, such as aqueous, gaseous or solid. The latest progress made in fields, such as FIA, ETV, LC-ICP-MS and CE-ICP-MS is included and critically discussed. The book addresses problems related to the optimization of the system, peak dispersion and calibration and automatization. - Provides contributions from recognized experts that give credibility to each chapter as a reference source - Presents a single source, providing the big picture for ICPMS and ICPOES - Covers theory, methods, selected applications and discrete sampling techniques - Includes access to core data for practical work, comparison of results and decision-making

ISTFA 2010

ISTFA 2010 PDF Author:
Publisher: ASM International
ISBN: 1615037276
Category : Technology & Engineering
Languages : en
Pages : 487

Book Description