Domains Of Light
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Domains Of Light
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Author : V. Madhusudan Reddy
language : en
Publisher:
Release Date : 2014
Domains Of Light written by V. Madhusudan Reddy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Upanishads categories.
Path Of Light
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Author : Ahimsa Press
language : en
Publisher:
Release Date : 2006-05-01
Path Of Light written by Ahimsa Press and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-01 with categories.
Modelling Of Light Propagation In Mixed Diffusing And Non Diffusing Domains
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Author :
language : en
Publisher:
Release Date : 2005
Modelling Of Light Propagation In Mixed Diffusing And Non Diffusing Domains written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Domains In Ferroic Crystals And Thin Films
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Author : Alexander Tagantsev
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-02
Domains In Ferroic Crystals And Thin Films written by Alexander Tagantsev 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 2011-03-02 with Science categories.
At present, the marketplace for professionals, researchers, and graduate students in solid-state physics and materials science lacks a book that presents a comprehensive discussion of ferroelectrics and related materials in a form that is suitable for experimentalists and engineers. This book proposes to present a wide coverage of domain-related issues concerning these materials. This coverage includes selected theoretical topics (which are covered in the existing literature) in addition to a plethora of experimental data which occupies over half of the book. The book presents experimental findings and theoretical understanding of ferroic (non-magnetic) domains developed during the past 60 years. It addresses the situation by looking specifically at bulk crystals and thin films, with a particular focus on recently-developed microelectronic applications and methods for observations of domains with techniques such as scanning force microscopy, polarized light microscopy, scanning optical microscopy, electron microscopy, and surface decorating techniques. "Domains in Ferroic Crystals and Thin Films" covers a large area of material properties and effects connected with static and dynamic properties of domains, which are extremely relevant to materials referred to as ferroics. In other textbooks on solid state physics, one large group of ferroics is customarily covered: those in which magnetic properties play a dominant role. Numerous books are specifically devoted to magnetic ferroics and cover a wide spectrum of magnetic domain phenomena. In contrast, "Domains in Ferroic Crystals and Thin Films" concentrates on domain-related phenomena in nonmagnetic ferroics. These materials are still inadequately represented in solid state physics textbooks and monographs.
Light Cone Singularities And Asymptotic Domains Of Momentum Space
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Author : Patrizio Vinciarelli
language : en
Publisher:
Release Date : 1972
Light Cone Singularities And Asymptotic Domains Of Momentum Space written by Patrizio Vinciarelli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.
Light Generation And Manipulation From Nonlinear Randomly Distributed Domains In Sbn
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Author : Can Yao
language : en
Publisher:
Release Date : 2014
Light Generation And Manipulation From Nonlinear Randomly Distributed Domains In Sbn written by Can Yao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Disordered media with refractive index variations can be found in the atmosphere, the ocean, and in many materials or biological tissues. Several technologies that make use of such random media, as image formation, satellite communication, astronomy or microscopy, must deal with an unavoidable light scattering or diffusion. This is why for many years light propagation through random media has been a subject of intensive study. Interesting phenomena such as speckle, coherent backscattering or random lasing have been discovered and studied. More recently, researchers are beginning to investigate mechanisms to control light propagation through such media to enhance light transmission and sharpen the focus. On the other hand, it has been known for several years that nonlinear random structures are able to generate light in an ultra-broad frequency range, without the need of angle or temperature tuning. Particularly interesting is the nonlinear light diffusion observed from materials with no change in the refractive index and which appear to be fully diffusion less to linear light propagation. However, a comprehensive understanding of the scattering when a nonlinear interaction takes place has not yet been given. The core of the thesis focuses on the study of the nonlinear light generation and propagation from crystalline structures with disordered nonlinear domains but with a homogenous refractive index. A random distribution of non-linear domains is found naturally in the Strontium Barium Niobate (SBN) ferroelectric crystal. As opposed to other mono-domain nonlinear optical crystals commonly used for frequency up-conversion, such as Potassium Titanyl Phosphate (KTP) or Lithium Niobate (LiNbO3), in SBN the nonlinear domain size is, typically, on the order of the coherence length or many times smaller than the size of the whole crystal. Such domains are usually several times longer in the c-axis direction relative to the plane perpendicular to that axis. Adjacent domains exhibit antiparallel polarization along such crystalline axis, with no change in refractive index. In Chapter 1 we give a brief introduction to light generation and propagation in random media, describing the speckle, light manipulation and second harmonic generation (SHG). In chapter 2, we study the nonlinear light generation and manipulation from a transparent SBN crystal. In its theoretical description we use a two-dimensional random structure consisting of a homogeneous background polarized in one direction with uniform rectangular boundaries, and a group of square reverse polarization domains with random sizes and located in random positions. The SHG from each domain is obtained using the Green's function formalism. In the experiments, we alter the ferroelectric domain structure of the SBN crystal by electric field poling or thermal treatments at different temperatures. The SBN crystal structures after such different treatments are shown to be characterized by their SHG patterns. In chapter 3, by measuring the spatial distribution of the second harmonic light in the c-plane, we demonstrate that the randomness in the nonlinear susceptibility results in a speckle pattern. We explain the observations as a result of the linear interference among the second harmonic waves generated in all directions by each of the nonlinear domains. In chapter 4, we report on our experimental implementation of the wave-front phase modulation method to control and focus the SHG speckle from the random SBN crystal. This research creates a bridge between light phase modulation and nonlinear optics. Finally we perform a theoretical analysis to demonstrate enhanced efficiencies for nonlinear light focusing by the wave-front phase modulation method in different directions. Various types of nonlinear structures are considered, including the homogeneous rectangular crystal, the group of random domains, and the combination of both.
Magnetic Domains
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Author : Alex Hubert
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-10-10
Magnetic Domains written by Alex Hubert 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 2008-10-10 with Science categories.
This book offers systematic and up-to-date treatment of the whole area of magnetic domains. It contains many contributions that have not been published before. The comprehensive survey of this important area gives a good introduction to students and is also interesting to researchers.
Light Oxygen Voltage Lov Domains From Erythrobacter Litoralis A Biochemical And Photochemical Study
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Author : Farzin Bolourchian
language : en
Publisher:
Release Date : 2014
Light Oxygen Voltage Lov Domains From Erythrobacter Litoralis A Biochemical And Photochemical Study written by Farzin Bolourchian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Sunlight powers all living things on earth, either directly or indirectly. Plants use light for photosynthesis and pass on the energy to animals that consume them. In order to use light to manufacture food or signal other processes, living beings have to sense and react to light and they do this with a variety of photoreceptors that are sensitive to different spectrum of light. Many studies have been done on the plant photoreceptors and although the list is still incomplete, several have been identified and characterized. Phytochromes absorb mainly red/far-red light with some shown to even respond to UV-A/blue light. The main purpose of this study is to focus on blue light sensing segment of phototropin called LOV2 (in plants) and simply LOV domain in bacteria. We follow the light activation of LOV-HTH domain of Erythrobacter Litoralis bacterium and follow the events upon light activation using many spectroscopic tools available to study such event. It is the aim of this study to show that upon light activation, movement of a segment of this molecule causes LOV domain to activate the effector domain downstream. The kinetics of adduct formation and dark state relaxation of the other two LOV domains in this bacterium named EL346 and EL368 are also studied.
Sh2 Domains
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Author : Teresa Carlomagno
language : en
Publisher: Springer Nature
Release Date : 2023-09-05
Sh2 Domains written by Teresa Carlomagno and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-05 with Science categories.
This volume looks at the latest methods used to study and modulate the biological function and mechanisms of SH2 domains. The chapters in this book are organized into five parts. Part One presents methodology aimed at determining the structures and dynamics of SH2 domains and their complexes with phosphopeptides. Part Two discusses techniques to understand and predict interactions of SH2 domains by measuring or calculating their affinity to phosphopeptides. Part Three focuses on inhibitors of SH2 domains that lead the way for chemical tool development and drug discovery. Part Four describes how to evolve and engineer SH2 domains with specific binding properties, and Part Five explores how to measure the regulation of protein tyrosine phosphatase activity through allosteric binding of peptides to SH2 domains and condensation. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and comprehensive, SH2 Domains: Functional Modules and Evolving Tools in Biology is a valuable resource for researchers, working in the biophysical and biochemical field, who want to learn more about this exciting and versatile class of regulatory and signaling domains.
Light Emission From Travelling Acoustic Domains In N Gaas
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Author : Michael Otto Bruun
language : en
Publisher:
Release Date : 1968
Light Emission From Travelling Acoustic Domains In N Gaas written by Michael Otto Bruun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.