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Two Photon Coherence And Ultrafast Optical Storage In Organic Molecules
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Book Synopsis Two-Photon Coherence and Ultrafast Optical Storage in Organic Molecules by :
Download or read book Two-Photon Coherence and Ultrafast Optical Storage in Organic Molecules written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project explored structure-property relationships relevant to enhancement of two-photon absorption (2PA) in organic dendritic molecules for optical power limiting. We synthesized and studied two series of novel monodisperse dendrimers built of identical blocks of thriphenylamine-based chromophores, BDPAS and BDPADSB. With both series, we observed strong cooperative enhancement of two- and three-photon absorption. We showed that this effect is due to conjugation between constituent branches. For lower generation dendriemers, the peak 2PA cross section was found to increase faster than linearly with the number of pi-electrons. For the largest dendrimer, 4SG2, the largest absolute values of molecular 2PA- and 3PA cross section was shown, 1.1 x 10(exp-46) cm(exp 4)s s and 10(exp-79) cm(exp 6)s(exp2), respectively. We compared the 2PA cross section of the two dendrimer series, and concluded that enlarging the conjugation system between the adjacent nitrogen atoms can create remarkably large sigma value. We developed a new method for quantitative determination of the extent of conjugation by comparing one- and three-photon absorption measurements. Coherent domain structure was deduced from 3PA measurements in the BDPAS series. It was found that, in terms of largest coherence domain size, 4SG0 is the optimum dendrimer generation, which corresponds to an effective maximum number of 150 conjugated pi-electrons.
Book Synopsis Sequential and Coherent, Optical and X-ray Two-photon Processes in Atoms and Molecules by : Jeffrey D. Mills
Download or read book Sequential and Coherent, Optical and X-ray Two-photon Processes in Atoms and Molecules written by Jeffrey D. Mills and published by . This book was released on 1996 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Zameer U. Hasan Publisher :SPIE-International Society for Optical Engineering ISBN 13 : Total Pages :342 pages Book Rating :4.3/5 (91 download)
Book Synopsis Advanced Optical Memories and Interfaces to Computer Storage by : Zameer U. Hasan
Download or read book Advanced Optical Memories and Interfaces to Computer Storage written by Zameer U. Hasan and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Manthos G. Papadopoulos Publisher :Springer Science & Business Media ISBN 13 :1402048505 Total Pages :676 pages Book Rating :4.4/5 (2 download)
Book Synopsis Non-Linear Optical Properties of Matter by : Manthos G. Papadopoulos
Download or read book Non-Linear Optical Properties of Matter written by Manthos G. Papadopoulos and published by Springer Science & Business Media. This book was released on 2007-05-03 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book assembles both theory and application in this field, to interest experimentalists and theoreticians alike. Part 1 is concerned with the theory and computing of non-linear optical (NLO) properties while Part 2 reviews the latest developments in experimentation. This book will be invaluable to researchers and students in academia and industry, particularlrly to anyone involved in materials science, theoretical and computational chemistry, chemical physics, and molecular physics.
Book Synopsis Electronic Processes in Organic Semiconductors by : Anna Köhler
Download or read book Electronic Processes in Organic Semiconductors written by Anna Köhler and published by John Wiley & Sons. This book was released on 2015-06-08 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first advanced textbook to provide a useful introduction in a brief, coherent and comprehensive way, with a focus on the fundamentals. After having read this book, students will be prepared to understand any of the many multi-authored books available in this field that discuss a particular aspect in more detail, and should also benefit from any of the textbooks in photochemistry or spectroscopy that concentrate on a particular mechanism. Based on a successful and well-proven lecture course given by one of the authors for many years, the book is clearly structured into four sections: electronic structure of organic semiconductors, charged and excited states in organic semiconductors, electronic and optical properties of organic semiconductors, and fundamentals of organic semiconductor devices.
Book Synopsis Ultrafast Coincidence Characteristics of Entangled Photons Towards Entangled Two-photon Absorption by : Aimee K. Gunther
Download or read book Ultrafast Coincidence Characteristics of Entangled Photons Towards Entangled Two-photon Absorption written by Aimee K. Gunther and published by . This book was released on 2014 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear optics has had extensive application into a vast array of scientific fields. One such nonlinear process, two-photon absorption (TPA), has had a wildly successful adoption into the field of biological imaging and microscopy. As far and as fast as this field is progressing, limitations stemming from the use of ultrafast lasers are starting to appear. In this work, an alternative nonclassical light source will be motivated for the application of low photon-flux two-photon microscopy. The origin and properties of the chosen nonclassical source, spontaneous parametric downconversion (SPDC), will be discussed along with the spatial and spectral properties modelled. Nonlinear processes such as TPA and sum frequency generation (SFG) will be viewed as "ultrafast coincidence measurements" of two photons arriving at a molecule within the time window of excitation. These ultrafast coincidence measurements will be viewed in an alternative manner: in terms of the second-order coherence from a light source. This degree of second-order coherence can be subdivided into two categories arising from different combinations of correlations within and between entangled photon pairs. Of interest, the energy-time correlations within the photon pair allow for enhancements in ultrafast coincidence rates over coherent light sources. The makings of an experimental setup to demonstrate enhanced rates from ultrafast two-photon coincidences taking place in SFG in a nonlinear crystal will be discussed.
Book Synopsis Topics in Fluorescence Spectroscopy by : Joseph R. Lakowicz
Download or read book Topics in Fluorescence Spectroscopy written by Joseph R. Lakowicz and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescence spectroscopy continues its advance to more sophisticated methods and applications. As one looks over the previous decades, its appears that the first practical instruments for time-resolved measurements appeared in the 1970’s. The instrumentation and analysis methods for time-resolved fluorescence advanced rapidly throughout the 1980’s. Since 1990 we have witnessed a rapid migration of the principles of time-resolved fluorescence to cell biology and clinical appli- tions. Most recently, we have seen the introduction of multi-photon excitation, pump-probe and stimulated emission methods for studies of biological mac- molecules and for cellular imaging. These advanced topics are the subject of the present volume. Two-photon excitation was first predicted by Maria Goppert-Mayer in 1931, but was not experimentally observed until 1961. Observation of two-photon excitation required the introduction of lasers which provided adequate photon density for multi-photon absorption. Since the early observations of two-photon excitation in the 1960s, multi-photon spectroscopy has been limited to somewhat exotic applications of chemical physics, where it is used to study the electronic symmetry of small molecules. Placing one’s self back in 1980, it would be hard to imagine the use of multi-photon excitation in biophysics or cellular imaging.
Book Synopsis Advances In Multi-photon Processes And Spectroscopy, Vol 16 by : Sheng-hsien Lin
Download or read book Advances In Multi-photon Processes And Spectroscopy, Vol 16 written by Sheng-hsien Lin and published by World Scientific. This book was released on 2004-09-09 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: In view of the rapid growth in both experimental and theoretical studies of multiphoton processes and multiphoton spectroscopy of atoms, ions and molecules in chemistry, physics, biology, material sciences, etc., it is desirable to publish an Advanced Series that contains review papers readable not only by active researchers in these areas, but also by those who are not experts in the field but who intend to enter the field. The present series attempts to serve this purpose. Each review article is written in a self-contained manner by the experts in the area so that the readers can grasp the knowledge in the area without too much preparation.The topics covered in this volume include “Ultrafast Photochemical Dynamics in Solution Studied by Femtosecond Time-Resolved Fluorescence Spectroscopy: Involvement of Highly Excited States”, “Spectral Selective Studies of Molecular Doped Solids and Applications”, “From Multiphoton to Tunnel Ionization”, “Cluster Dynamics in Intense Laser Fields”, and “Molecular Theory of Sum-Frequency Generation and its Application to Study Molecular Chirality”. It is hoped that the collection of topics in this volume will be useful not only to active researchers but also to other scientists in biology, chemistry, materials science and physics.This book has been selected for coverage in:• CC / Physical, Chemical & Earth Sciences• Index to Scientific Book Contents® (ISBC)
Book Synopsis Polymer Science: A Comprehensive Reference by :
Download or read book Polymer Science: A Comprehensive Reference written by and published by Newnes. This book was released on 2012-12-05 with total page 7752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress in polymer science is revealed in the chapters of Polymer Science: A Comprehensive Reference, Ten Volume Set. In Volume 1, this is reflected in the improved understanding of the properties of polymers in solution, in bulk and in confined situations such as in thin films. Volume 2 addresses new characterization techniques, such as high resolution optical microscopy, scanning probe microscopy and other procedures for surface and interface characterization. Volume 3 presents the great progress achieved in precise synthetic polymerization techniques for vinyl monomers to control macromolecular architecture: the development of metallocene and post-metallocene catalysis for olefin polymerization, new ionic polymerization procedures, and atom transfer radical polymerization, nitroxide mediated polymerization, and reversible addition-fragmentation chain transfer systems as the most often used controlled/living radical polymerization methods. Volume 4 is devoted to kinetics, mechanisms and applications of ring opening polymerization of heterocyclic monomers and cycloolefins (ROMP), as well as to various less common polymerization techniques. Polycondensation and non-chain polymerizations, including dendrimer synthesis and various "click" procedures, are covered in Volume 5. Volume 6 focuses on several aspects of controlled macromolecular architectures and soft nano-objects including hybrids and bioconjugates. Many of the achievements would have not been possible without new characterization techniques like AFM that allowed direct imaging of single molecules and nano-objects with a precision available only recently. An entirely new aspect in polymer science is based on the combination of bottom-up methods such as polymer synthesis and molecularly programmed self-assembly with top-down structuring such as lithography and surface templating, as presented in Volume 7. It encompasses polymer and nanoparticle assembly in bulk and under confined conditions or influenced by an external field, including thin films, inorganic-organic hybrids, or nanofibers. Volume 8 expands these concepts focusing on applications in advanced technologies, e.g. in electronic industry and centers on combination with top down approach and functional properties like conductivity. Another type of functionality that is of rapidly increasing importance in polymer science is introduced in volume 9. It deals with various aspects of polymers in biology and medicine, including the response of living cells and tissue to the contact with biofunctional particles and surfaces. The last volume is devoted to the scope and potential provided by environmentally benign and green polymers, as well as energy-related polymers. They discuss new technologies needed for a sustainable economy in our world of limited resources. Provides broad and in-depth coverage of all aspects of polymer science from synthesis/polymerization, properties, and characterization methods and techniques to nanostructures, sustainability and energy, and biomedical uses of polymers Provides a definitive source for those entering or researching in this area by integrating the multidisciplinary aspects of the science into one unique, up-to-date reference work Electronic version has complete cross-referencing and multi-media components Volume editors are world experts in their field (including a Nobel Prize winner)
Book Synopsis Nanotechnology and Nano-Interface Controlled Electronic Devices by : Bozzano G Luisa
Download or read book Nanotechnology and Nano-Interface Controlled Electronic Devices written by Bozzano G Luisa and published by Elsevier. This book was released on 2003-04-22 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with topics such as single molecular electronics and photonics, NICE devices, smart soft materials, interfacial dynamic technology, and fabrication and characterization technology.
Download or read book Optics News written by and published by . This book was released on 1985 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes a directory of members in one issue each year.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of the Optical Society of America by :
Download or read book Journal of the Optical Society of America written by and published by . This book was released on 1998 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Ablation and Its Applications by : Claude Phipps
Download or read book Laser Ablation and Its Applications written by Claude Phipps and published by Springer Science & Business Media. This book was released on 2007 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser ablation describes the interaction of intense optical fields with matter, in which atoms are selectively driven off by thermal or nonthermal mechanisms. The field of laser ablation physics is advancing so rapidly that its principal results are seen only in specialized journals and conferences. This is the first book that combines the most recent results in this rapidly advancing field with authoritative treatment of laser ablation and its applications, including the physics of high-power laser-matter interaction. Many practical applications exist, ranging from inertial confinement fusion to propulsion of aerostats for pollution monitoring to laser ignition of hypersonic engines to laser cleaning nanoscale contaminants in high-volume computer hard drive manufacture to direct observation of the electronic or dissociative states in atoms and molecules, to studying the properties of materials during 200kbar shocks developed in 200fs. Selecting topics which are representative of such a broad field is difficult. Laser Ablation and its Applications emphasizes the wide range of these topics rather than - as is so often the case in advanced science – focusing on one specialty or discipline. The book is divided into four sections: theory and modeling, ultrafast interactions, material processing and laser-matter interaction in novel regimes. The latter range from MALDI to ICF, SNOM’s and femtosecond nanosurgery to laser space propulsion. The book arose from the SPIE series of High Power Laser Ablation Symposia which began in 1998. It is intended for a graduate course in laser interactions with plasmas and materials, but it should be accessible to anyone with a graduate degree in physics or engineering. It is also intended as a major reference work to familiarize scientists just entering the field with laser ablation and its applications.
Book Synopsis Quantum Photonics: Pioneering Advances and Emerging Applications by : Robert W. Boyd
Download or read book Quantum Photonics: Pioneering Advances and Emerging Applications written by Robert W. Boyd and published by Springer. This book was released on 2019-02-27 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together reviews by internationally renowed experts on quantum optics and photonics. It describes novel experiments at the limit of single photons, and presents advances in this emerging research area. It also includes reprints and historical descriptions of some of the first pioneering experiments at a single-photon level and nonlinear optics, performed before the inception of lasers and modern light detectors, often with the human eye serving as a single-photon detector. The book comprises 19 chapters, 10 of which describe modern quantum photonics results, including single-photon sources, direct measurement of the photon's spatial wave function, nonlinear interactions and non-classical light, nanophotonics for room-temperature single-photon sources, time-multiplexed methods for optical quantum information processing, the role of photon statistics in visual perception, light-by-light coherent control using metamaterials, nonlinear nanoplasmonics, nonlinear polarization optics, and ultrafast nonlinear optics in the mid-infrared.
Book Synopsis IBM Journal of Research and Development by :
Download or read book IBM Journal of Research and Development written by and published by . This book was released on 2000 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phase Conjugate Optics by : Junʼichi Sakai
Download or read book Phase Conjugate Optics written by Junʼichi Sakai and published by McGraw-Hill Companies. This book was released on 1992 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from basic principles and progressing to detailed discussions of applications, this book aims to provide an accessible introduction to phase conjugate optics; its fundamental concepts, including theories, experiments, materials and applications.
