Physics And Engineering Of Graded Index Media
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Physics And Engineering Of Graded Index Media
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Author : Govind P. Agrawal
language : en
Publisher: Cambridge University Press
Release Date : 2023-08-10
Physics And Engineering Of Graded Index Media written by Govind P. Agrawal and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-10 with Science categories.
Optical materials with varying refractive indices are called graded-index (GRIN) media and they are widely used within many industries, including telecommunications and medical imaging. Another recent application is space division multiplexing, an enormously improved technique for optical data transmission. This book synthesises recent research developments in this growing field, presenting both the underlying physical principles behind optical propagation in GRIN media, and the most important engineering applications. The principles of wave optics are employed for solving Maxwell's equations inside a GRIN medium, ensuring that diffractive effects are fully included. The mathematical development builds gradually and a variety of exact and approximate techniques for solving practical problems are included, in addition to coverage of modern topics such as optical vortices, photonic spin-orbit coupling, photonic crystals, and metamaterials. This text will be useful for graduate students and researchers working in optics, photonics and optical communications.
Led Lighting
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Author : Malvin Carl Teich
language : en
Publisher: Malvin Carl Teich
Release Date : 2025-04-14
Led Lighting written by Malvin Carl Teich and has been published by Malvin Carl Teich this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-14 with Technology & Engineering categories.
LED Lighting is a self-contained and introductory-level book featuring a blend of theory and applications that thoroughly covers this important interdisciplinary area. Building on the underlying fields of optics, photonics, and vision science, it comprises four parts: PART I is devoted to fundamentals. The behavior of light is described in terms of rays, waves, and photons. Each of these approaches is best suited to a particular set of applications. The properties of blackbody radiation, thermal light, and incandescent light are derived and explained. The essentials of semiconductor physics are set forth, including the operation of junctions and heterojunctions, quantum wells and quantum dots, and organic and perovskite semiconductors. PART II deals with the generation of light in semiconductors, and details the operation and properties of III-V semiconductor devices (MQWLEDs & microLEDs), quantum-dot devices (QLEDs & WQLEDs), organic semiconductor devices (OLEDs, SMOLEDs, PLEDs, & WOLEDs), and perovskite devices (PeLEDs, PPeLEDs, QPeLEDs, & PeWLEDS). PART Ill focuses on vision and the perception of color, as well as on colorimetry. It delineates radiometric and photometric quantities as well as various measures of luminous efficacy and efficiency. It also elucidates the significance of commonly used LED lighting metrics, such as the color rendering index (CRI), color temperature (CT), correlated color temperature (CCT), and chromaticity diagram. PART IV is devoted to LED lighting, focusing on its history and salutary features, and on how this modern form of illumination is deployed. It describes the principal components used in LED lighting, including phosphor-conversion LEDs (PCLEDs) for generating cool- and warm-white light, chip-on-board (COB) devices, color-mixing LEDs, LED filaments, retrofit LED lamps, hybrid devices, LED luminaires, and OLED light panels. It concludes with a discussion of smart and connected lighting that reviews plant-centric lighting and highlights the roles of gamma and circadian brain rhythms in human-centric lighting. Finally, the performance metrics for traditional and LED light sources are summarized. Each chapter contains practical examples, highlighted equations, color-coded figures, and an extensive bibliography.
Supercontinuum Generation In Optical Fibers
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Author : J. M. Dudley
language : en
Publisher: Cambridge University Press
Release Date : 2010-04-01
Supercontinuum Generation In Optical Fibers written by J. M. Dudley and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-01 with Science categories.
The optical fiber based supercontinuum source has recently become a significant scientific and commercial success, with applications ranging from frequency comb production to advanced medical imaging. This one-of-a-kind book explains the theory of fiber supercontinuum broadening, describes the diverse operational regimes and indicates principal areas of applications, making it a very important guide for researchers and graduate students. With contributions from major figures and groups who have pioneered research in this field, the book describes the historical development of the subject, provides a background to the associated nonlinear optical processes, treats the generation mechanisms from continuous wave to femtosecond pulse pump regimes and highlights the diverse applications. A full discussion of numerical methods and comprehensive computer code are also provided, enabling readers to confidently predict and model supercontinuum generation characteristics under realistic conditions.
Inhomogeneous Optical Waveguides
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Author : A. Ghatak
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Inhomogeneous Optical Waveguides written by A. Ghatak 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 2013-03-09 with Science categories.
The propagation of electromagnetic waves in "square-law" media, i.e., media characterized by a quadratic spatial variation of the dielectric constant, has been a favorite subject of investigation in electromagnetic theory. However, with the recent fabrication of glass fibers with a quadratic radial variation of the dielectric constant and the application of such fibers to optical imaging and communications, this subject has also assumed practical importance. Comparison of experimental results on propagation, resolu tion, and pulse distortion in such inhomogeneous waveguides with theory has put the field on a sound base and spurred further work. The present book aims at presenting a unified view of important aspects of our knowledge of inhomogeneous optical waveguides. A brief discussion of homogeneous dielectric waveguides is unavoidable, since itforms a basis for the appreciation of inhomogeneous waveguides. A short course based on some chapters of this book was offered to graduate students at IIT Delhi and was well received. We consider that despite the unavoidable mathemati cal nature of the present book, the comparison of experimental results with theory throughout and the description of fabrication technology (Appen dixes A and B) should make its appeal universal. The authors are grateful to Dr. K. Thyagarajan for writing most of Chapter 9 and to their colleagues Dr. I. C. Goyal, Dr. B. P. Pal, and Dr. A.
Advances In Imaging And Electron Physics
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Author :
language : en
Publisher: Academic Press
Release Date : 1999-02-24
Advances In Imaging And Electron Physics written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-02-24 with Technology & Engineering categories.
Advances in Imaging & Electron Physics merges two long-running serials--Advances in Electronics & Electron Physics and Advances in Optical & Electron Microscopy. The series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.
Fundamentals Of Photonics
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Author : Bahaa E. A. Saleh
language : en
Publisher: John Wiley & Sons
Release Date : 2020-03-04
Fundamentals Of Photonics written by Bahaa E. A. Saleh 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 2020-03-04 with Technology & Engineering categories.
Fundamentals of Photonics A complete, thoroughly updated, full-color third edition Fundamentals of Photonics, Third Edition is a self-contained and up-to-date introductory-level textbook that thoroughly surveys this rapidly expanding area of engineering and applied physics. Featuring a blend of theory and applications, coverage includes detailed accounts of the primary theories of light, including ray optics, wave optics, electromagnetic optics, and photon optics, as well as the interaction of light and matter. Presented at increasing levels of complexity, preliminary sections build toward more advanced topics, such as Fourier optics and holography, photonic-crystal optics, guided-wave and fiber optics, LEDs and lasers, acousto-optic and electro-optic devices, nonlinear optical devices, ultrafast optics, optical interconnects and switches, and optical fiber communications. The third edition features an entirely new chapter on the optics of metals and plasmonic devices. Each chapter contains highlighted equations, exercises, problems, summaries, and selected reading lists. Examples of real systems are included to emphasize the concepts governing applications of current interest. Each of the twenty-four chapters of the second edition has been thoroughly updated.
Optical Solitons
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Author : J. R. Taylor
language : en
Publisher: Cambridge University Press
Release Date : 1992-04-23
Optical Solitons written by J. R. Taylor and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-04-23 with Science categories.
Provides an overview of our current understanding of optical soliton properties introducing the subject for students and reviewing the most recent research.
Optical Engineering
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Author :
language : en
Publisher:
Release Date : 2002
Optical Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Optical instruments categories.
Publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.
New Trends In Natural And Synthetic Polymer Science
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Author : Cornelia Vasile
language : en
Publisher: Nova Publishers
Release Date : 2006
New Trends In Natural And Synthetic Polymer Science written by Cornelia Vasile and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
This collection of texts written by well-recognised specialists was constituted having in view these important directions of actual research. Sustainable economical growth requires safe resources of raw materials for the industrial production. Today's most frequently used industrial raw material, petroleum, is neither sustainable, because limited, nor environmentally friendly. While the economy of energy can be based on various alter-native raw materials, such as wind, sun, water, biomass, as well as nuclear fission and fusion, the economy of substances is fundamentally depending on biomass, in particular biomass of plants. In the last decades because of the crude oil and other natural resources crisis, a new alternative has been proposed consisting in utilisation of renewable natural resources as feedstock and fuel, among which the biomass is the most promising.
Chemical And Physical Properties Of Polymers
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Author : Gennadiĭ Efremovich Zaikov
language : en
Publisher: Nova Publishers
Release Date : 2005
Chemical And Physical Properties Of Polymers written by Gennadiĭ Efremovich Zaikov and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Science categories.
This title's contents include: perspective polymer materials with structural inhomogeneity for the construction of new generation optical devices; the effect of various factors on damaging of polymeric materials by microorganisms; kinetics of radial growth of aspergillus colonies at different temperatures; kinetics of acids excretion in medium by mycelial micromycetes colonies; polymers for fibre optics; isobutylene polymerisation.