Tailored Light 1
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Tailored Light 1
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Author : Reinhart Poprawe
language : en
Publisher: Springer
Release Date : 2018-04-05
Tailored Light 1 written by Reinhart Poprawe and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-05 with Technology & Engineering categories.
The Laser world consists basically of two areas, which are necessary and in many cases also sufficient for effective innovation: The right laser for the right application. For the individual application that means the determination of optimized process parameters in terms of laser power, peak power/ intensity, focus geometry and dimension, pulse length, pulse repetition rate and wavelength to name only the six most important ones. Once these parameters are identified, the corresponding Laser has to be selected on the basis of commercial availability. Obviously there is no such thing than "One Laser for all". The situation is rather comparable with electrical power, were depending on the demand of the application in terms of voltage, current and time corresponding power supplies need to be tailored, however, with the difference that in the case of the Laser the variety of parameters is even higher, thus the technology is more complex but on the other hand much more flexible in terms optimizing the source to the application. As a consequence it is suggested to generate two volumes on Lasers and Applications named "Tailored Light".
Tailored Light Emitters For Biomedical Applications
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Author : Nelson Oshogwue Etafo
language : en
Publisher: Springer Nature
Release Date : 2025-04-28
Tailored Light Emitters For Biomedical Applications written by Nelson Oshogwue Etafo and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-28 with Technology & Engineering categories.
This book provides a comprehensive guide to the development, testing, and medical applications of photoluminescent materials. It covers key material classes—such as quantum dots, organic fluorophores, and lanthanide-doped nanoparticles—and explores how their light emission properties can be tailored for medical use. Readers will find in-depth discussions on biocompatibility strategies, targeted drug delivery with light-triggered release mechanisms, in vivo imaging for real-time therapeutic monitoring, and advanced diagnostic techniques like biosensors and fluorescence assays. The book also delves into photoluminescence-based therapies, including antibacterial treatments, photoimmunotherapy, and cancer phototherapy, offering researchers and practitioners the tools to develop safe and effective next-generation medical technologies.
Tailored Light 2
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Author : Reinhart Poprawe
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-01-22
Tailored Light 2 written by Reinhart Poprawe and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-22 with Technology & Engineering categories.
The present book covers the application technology of lasers, focusing more on the vast range of processes than on individual applications, in order to motivate and enable future innovations. The physical basics are presented in the first half of the book. The following examination of application categories and their processes is documented by experts from their practical points of view but always refers back to the underlying physical principles. In this way, readers are free to choose their own individual level of depth in understanding this globally relevant field of innovation.
Tailoring The Emission Of Stripe Array Diode Lasers With External Cavities To Enable Nonlinear Frequency Conversion
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Author : Andreas Jechow
language : en
Publisher: Universitätsverlag Potsdam
Release Date : 2009
Tailoring The Emission Of Stripe Array Diode Lasers With External Cavities To Enable Nonlinear Frequency Conversion written by Andreas Jechow and has been published by Universitätsverlag Potsdam this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Science categories.
A huge number of applications require coherent radiation in the visible spectral range. Since diode lasers are very compact and efficient light sources, there exists a great interest to cover these applications with diode laser emission. Despite modern band gap engineering not all wavelengths can be accessed with diode laser radiation. Especially in the visible spectral range between 480 nm and 630 nm no emission from diode lasers is available, yet. Nonlinear frequency conversion of near-infrared radiation is a common way to generate coherent emission in the visible spectral range. However, radiation with extraordinary spatial temporal and spectral quality is required to pump frequency conversion. Broad area (BA) diode lasers are reliable high power light sources in the near-infrared spectral range. They belong to the most efficient coherent light sources with electro-optical efficiencies of more than 70%. Standard BA lasers are not suitable as pump lasers for frequency conversion because of their poor beam quality and spectral properties. For this purpose, tapered lasers and diode lasers with Bragg gratings are utilized. However, these new diode laser structures demand for additional manufacturing and assembling steps that makes their processing challenging and expensive. An alternative to BA diode lasers is the stripe-array architecture. The emitting area of a stripe-array diode laser is comparable to a BA device and the manufacturing of these arrays requires only one additional process step. Such a stripe-array consists of several narrow striped emitters realized with close proximity. Due to the overlap of the fields of neighboring emitters or the presence of leaky waves, a strong coupling between the emitters exists. As a consequence, the emission of such an array is characterized by a so called supermode. However, for the free running stripe-array mode competition between several supermodes occurs because of the lack of wavelength stabilization. This leads to power fluctuations, spectral instabilities and poor beam quality. Thus, it was necessary to study the emission properties of those stripe-arrays to find new concepts to realize an external synchronization of the emitters. The aim was to achieve stable longitudinal and transversal single mode operation with high output powers giving a brightness sufficient for efficient nonlinear frequency conversion. For this purpose a comprehensive analysis of the stripe-array devices was done here. The physical effects that are the origin of the emission characteristics were investigated theoretically and experimentally. In this context numerical models could be verified and extended. A good agreement between simulation and experiment was observed. One way to stabilize a specific supermode of an array is to operate it in an external cavity. Based on mathematical simulations and experimental work, it was possible to design novel external cavities to select a specific supermode and stabilize all emitters of the array at the same wavelength. This resulted in stable emission with 1 W output power, a narrow bandwidth in the range of 2 MHz and a very good beam quality with M²<1.5. This is a new level of brightness and brilliance compared to other BA and stripe-array diode laser systems. The emission from this external cavity diode laser (ECDL) satisfied the requirements for nonlinear frequency conversion. Furthermore, a huge improvement to existing concepts was made. In the next step newly available periodically poled crystals were used for second harmonic generation (SHG) in single pass setups. With the stripe-array ECDL as pump source, more than 140 mW of coherent radiation at 488 nm could be generated with a very high opto-optical conversion efficiency. The generated blue light had very good transversal and longitudinal properties and could be used to generate biphotons by parametric down-conversion. This was feasible because of the improvement made with the infrared stripe-array diode lasers due to the development of new physical concepts.
Semiconductor Photonics Of Nanomaterials And Quantum Structures
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Author : Arash Rahimi-Iman
language : en
Publisher: Springer Nature
Release Date : 2021-04-23
Semiconductor Photonics Of Nanomaterials And Quantum Structures written by Arash Rahimi-Iman and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-23 with Science categories.
This book introduces the wider field of functional nanomaterials sciences, with a strong emphasis on semiconductor photonics. Whether you are studying photonic quantum devices or just interested in semiconductor nanomaterials and their benefits for optoelectronic applications, this book offers you a pedagogical overview of the relevant subjects along with topical reviews. The book discusses different yet complementary studies in the context of ongoing international research efforts, delivering examples from both fundamental and applied research to a broad readership. In addition, a hand-full of useful optical techniques for the characterization of semiconductor quantum structures and materials are addressed. Moreover, nanostructuring methods for the production of low-dimensional systems, which exhibit advantageous properties predominantly due to quantum effects, are summarized. Science and engineering professionals in the interdisciplinary domains of nanotechnology, photonics, materials sciences, and quantum physics can familiarize themselves with selected highlights with eyes towards photonic applications in the fields of two-dimensional materials research, light–matter interactions, and quantum technologies.
Ultrashort Pulse Laser Ablation Of Bulk Materials Using Shaped Laser Beams
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Author : Dmitriy Mikhaylov
language : en
Publisher: Cuvillier Verlag
Release Date : 2021-06-24
Ultrashort Pulse Laser Ablation Of Bulk Materials Using Shaped Laser Beams written by Dmitriy Mikhaylov and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-24 with Technology & Engineering categories.
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.
Human Centric Integrative Lighting
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Author : Tran Quoc Khanh
language : en
Publisher: John Wiley & Sons
Release Date : 2023-08-07
Human Centric Integrative Lighting written by Tran Quoc Khanh and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-07 with Science categories.
Human Centric Integrative Lighting Detailed presentation of the technical and non-technical aspects of modern lighting and its effect on humans Human Centric Integrative Lighting provides a highly comprehensive overview of the subject, also referred to as human-centered indoor lighting technology; taking a practice-oriented approach, scientific findings in the field are condensed into models that can be directly used by developers. Written by leading scientists in the field of lighting technology, Human Centric Integrative Lighting includes detailed information on: Fundamentals of lighting technology as it interacts with human perception and the current state of interior lighting today Basic principles of human centric integrative lighting and its various aspects, such as visual performance, color quality, emotional impact, and correlation of relevant parameters Comprehensive lighting quality models and subsequently derived recommendations for the practical implementation of concepts Relevant research findings from journals, patent specifications, and standards to provide a unified outlook on the field Providing a comprehensive overview of the current state of development in the field, Human Centric Integrative Lighting discusses validated physiological and psychological perceptual models on which manufacturers of lighting products and suppliers of lighting technology solutions can base key design and development decisions. lighting products; lighting technology solutions; lighting design; lighting development; human-centered indoor lighting technology; lighting color quality; lighting principles; lighting emotional impact; lighting quality; lighting research
Tailored Functional Oxide Nanomaterials
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Author : Chiara Maccato
language : en
Publisher: John Wiley & Sons
Release Date : 2022-03-02
Tailored Functional Oxide Nanomaterials written by Chiara Maccato and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-02 with Science categories.
Tailored Functional Oxide Nanomaterials A comprehensive exploration of the preparation and application of metal oxide nanomaterials Tailored Functional Oxide Nanomaterials: From Design to Multi-Purpose Applications delivers a one-of-a-kind discussion of the fundamentals and key applications of metal oxide nanomaterials. The book explores everything from their preparation to the mastering of their characteristics in an interdisciplinary view. The distinguished authors address theoretical research and advanced technological utilizations, illustrating key issues for the understanding and real-world end-uses of the most important class of inorganic materials. The interplay between the design, preparation, chemico-physical characterization, and functional behaviors of metal oxide nanomaterials in a variety of fields is presented. Up-to-date work and knowledge on these materials is also described, with fulsome summaries of important applications that are relevant to researchers pursuing safety, sustainability, and energy end-uses. Readers will also find: A thorough introduction to vapor phase growth of metal oxide thin films and nanostructures Comprehensive explorations of addressing complex transition metal oxides at the nanoscale, including bottom-up syntheses of nano-objects and properties Practical discussions of nanosized oxides supported on mats of carbon nanotubes, including synthesis strategies and performances of Ti/CNT systems In-depth examinations of computational approaches to the study of oxide nanomaterials and nanoporous oxides Perfect for materials scientists, inorganic chemists, physicists, catalytic chemists, and chemical engineers, Tailored Functional Oxide Nanomaterials will also earn a place in the libraries of solid-state chemists.
Field Artillery
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Author :
language : en
Publisher:
Release Date : 1985
Field Artillery written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Artillery categories.
A professional bulletin for redlegs.
Alternatives To Perchloroethylene Based Garment Care
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Author :
language : en
Publisher:
Release Date : 1997
Alternatives To Perchloroethylene Based Garment Care written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Cleaning compounds categories.