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Author: Yasushi Yokoyama
Publisher: Springer
ISBN: 4431565442
Category : Science
Languages : en
Pages : 461
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Book Description
This book focuses on photoswitches. The objective of the book is to introduce researchers and graduate course students who are interested in "photon-working switches" not only to the fundamentals but also to the latest research being carried out in this field. Light can reach a target substrate without any physical contact to deliver energy. The energy can induce changes in the structure of the molecules included in the substrate so that its properties and functions are made switchable by light irradiation. When a substrate is able to revert to its original state, this system can be regarded as a "photon-working switch". The terms "photon-working switches" or "photoswitches" are almost equivalent in meaning to "photochromism"; however, they focus on the "switching of functions" of chemical species rather than their "reversible transformation". Most of the authors of this volume are members of PHENICS, an international research group on organic molecular photoswitches composed of research institutions from France, Japan, Russia, China and Germany. Since its inception in 2008, PHENICS has promoted active research to develop the field. This book commemorates the group's eighth year of collaborative research.
Author: Yasushi Yokoyama
Publisher: Springer
ISBN: 4431565442
Category : Science
Languages : en
Pages : 461
Get Book Here
Book Description
This book focuses on photoswitches. The objective of the book is to introduce researchers and graduate course students who are interested in "photon-working switches" not only to the fundamentals but also to the latest research being carried out in this field. Light can reach a target substrate without any physical contact to deliver energy. The energy can induce changes in the structure of the molecules included in the substrate so that its properties and functions are made switchable by light irradiation. When a substrate is able to revert to its original state, this system can be regarded as a "photon-working switch". The terms "photon-working switches" or "photoswitches" are almost equivalent in meaning to "photochromism"; however, they focus on the "switching of functions" of chemical species rather than their "reversible transformation". Most of the authors of this volume are members of PHENICS, an international research group on organic molecular photoswitches composed of research institutions from France, Japan, Russia, China and Germany. Since its inception in 2008, PHENICS has promoted active research to develop the field. This book commemorates the group's eighth year of collaborative research.
Author: YCT Expert Team
Publisher: YOUTH COMPETITION TIMES
ISBN:
Category : Antiques & Collectibles
Languages : en
Pages : 946
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Book Description
2023-24 NTA NEET/JEE Main Physics Optics & Modern Physics Vol.5 Solved Papers
Author: YCT Expert Team
Publisher: YOUTH COMPETITION TIMES
ISBN:
Category : Antiques & Collectibles
Languages : en
Pages : 930
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Book Description
2023-24 NEET Objective Optics & Modern Physics MCQ's 50,000 This book is a very useful for all the competitive examinations
Author: THIAGARAJAN VISWANATHAN
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120350839
Category : Technology & Engineering
Languages : en
Pages : 642
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Book Description
The rapid expansion of the field of telecommunication networks call for a new edition to assist the readers with development of understanding towards new telecommunication technologies. This well-accepted textbook, now in its Second Edition, is designed for the final-year undergraduate and the first-year graduate students in electronics and communication engineering and allied subjects. It fulfils the need for a suitable textbook in the area of telecommunication switching systems and networks. The text covers, in a single volume, both switching systems and telecommunications networks. The book begins with a brief discussion on the evolution of telecommunication. It then goes on to give a classification scheme for switching systems, and describes the basic components of a switching system and the fundamental concepts of network structures. It provides an in-depth coverage of fibre optic communication system and the traffic engineering concepts. A distinguishing feature of the book is the thorough treatment of the most important telecommunication networks, viz. the public switched telephone network (PSTN), the public data network (PDN), and the integrated services digital network (ISDN). Worked-out examples and exercises would be of considerable assistance to the reader in understanding all aspects of telecommunication engineering. NEW TO THIS EDITION • Sections on SONET, WDM, and DWDM in Chapter 7 • New section on Broadband ISDN and related technologies in Chapter 11 • A new chapter on Mobile Communication which covers almost all aspects of the cell planning and mobile channels • A new chapter on Satellite Communication which gives sufficient introductory knowledge of the satellites, satellite orbits, and orbital theory • Satellite link budget analysis (with examples) in Chapter 13.
Author: Edmond J. Murphy
Publisher: CRC Press
ISBN: 1000146804
Category : Technology & Engineering
Languages : en
Pages : 482
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Book Description
Updates the advancements made in the level of achievable integration of optical circuits and components in the last ten years--highlighting the commercial success of particular devices as well as introducing multiple facets of integrated optics.
Author: Charlie Ironside
Publisher: Morgan & Claypool Publishers
ISBN: 1681745216
Category : Science
Languages : en
Pages : 74
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Book Description
This book covers the technology of switching or modulating light in semiconductor optical waveguides. Currently a key function for optical communications systems is the conversion of data from an electrical signal to an optical signal for transmission in very low loss optical fibres and the converse process of optical to electrical conversion the O/E/O data conversion. This conversion between electronic and photonic signals imposes an energy consumption overhead on optical communication systems. So many research workers have been attracted to ultrafast all-optical switching of data in different formats. As a way of introduction to all-optical switching in semiconductor waveguides the book covers the electro-optic effect, electroabsorption and electrorefraction; effects that can be used in semiconductor optical modulation devices. But the book focuses on all-optical switching using second and third order optical nonlinearities in AlGaAs optical waveguides. It covers a variety of device configurations including integrated nonlinear couplers and Mach-Zehnder interferometers. Further, it provides design software in suit of Mathematica notebooks that can be used to explore the device design.
Author: Vladimir M. Vishnevskiy
Publisher: Springer Nature
ISBN: 303066242X
Category : Computers
Languages : en
Pages : 569
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Book Description
This book constitutes the refereed proceedings of the 23rd International Conference on Distributed and Computer and Communication Networks, DCCN 2020, held in Moscow, Russia, in September 2020. Due to the COVID-19 pandemic the conference was held online. The 43 papers were carefully reviewed and selected from 167 submissions.The papers are organized in the following topical sections: computer and communication networks and technologies; analytical modeling of distributed systems, and distributed systems applications.
Author: Motoichi Ohtsu
Publisher: Springer Science & Business Media
ISBN: 3642395694
Category : Science
Languages : en
Pages : 329
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Book Description
Authored by the developer of dressed photon science and technology as well as nanophotonics, this book outlines concepts of the subject using a novel theoretical framework that differs from conventional wave optics. It provides a quantum theoretical description of optical near fields and related problems that puts matter excitation such as electronic and vibrational ones on an equal footing with photons. By this description, optical near fields are interpreted as quasi-particles and named dressed photons which carry the material excitation energy in a nanometric space. The author then explores novel nanophotonic devices, fabrications, and energy conversion based on the theoretical picture of dressed photons. Further, this book looks at how the assembly of nanophotonic devices produces information and communication systems. Dressed photon science and technology is on its way to revolutionizing various applications in devices, fabrications, and systems. Promoting further exploration in the field, this book presents physically intuitive concepts, theories, and technical details for students, engineers, and scientists engaged in research and development in dressed photon science and technology as well as nanophotonics.
Author: Robert J.A. Francis-Jones
Publisher: Springer
ISBN: 3319641883
Category : Science
Languages : en
Pages : 164
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Book Description
This clearly written thesis discusses the development of a highly innovative single-photon source that uses active optical switching, known as multiplexing, to increase the probability of delivering photons into a single mode. Improving single-photon sources is critical in advancing the state of the art in photonic quantum technologies for information processing and communications.
Author: Nikolai Vsevolodov
Publisher: Springer Science & Business Media
ISBN: 146122442X
Category : Science
Languages : en
Pages : 287
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Book Description
The properties of materials depend on the nature of the macromolecules, small molecules and inorganic components and the interfaces and interactions between them. Polymer chemistry and physics, and inorganic phase structure and density are major factors that influence the performance of materials. In addition, molecular recognition, organic-inorganic interfaces and many other types of interactions among components are key issues in determining the properties of materials for a wide range of applications. Materials require ments are becoming more and more specialized to meet increasingly demand ing needs, from specific environmental stresses to high performance or biomedical applications such as matrices for controlled release tissue scaf folds. One approach to meet these performance criteria is to achieve better control over the tailoring of the components and their interactions that govern the material properties. This goal is driving a great deal of ongoing research in material science laboratories. In addition, control at the molecular level of interactions between these components is a key in many instances in order to reach this goal since traditional approaches used to glue, stitch or fasten parts together can no longer suffice at these new levels of manipulation to achieve higher performance. In many cases, molecular recognition and self-assembly must begin to drive these processes to achieve the levels of control desired. This same need for improved performance has driven Nature over millenia to attain higher and higher complexity.
