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Author : Zhonghua Peng
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (718 download)
Download or read book Rational Designs of Functional Polymers for Nonlinear Optics written by Zhonghua Peng and published by . This book was released on 1997 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.X/5 (4 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (946 download)
Download or read book Novel Photorefractive and Electro-Optic Polymers-Rational Designs, Synthesis and Mechanism written by and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes our effort in the past three years on synthesis and characterization of novel photorefractive polymer system. Two major systems were developed, one of which combined the ionic transition metal complexes and a conjugated polymer backbone bearing NLO chromophores to manifest large photorefractive effect. Another is a molecular material containing oligothiophene and a nonlinear optical (NLO) chromophore. A large net optical gain (>200/cm) at a zero electric field was observed in the metal containing system. In the molecular system, a net optical gain of 83/cm and a diffraction efficiency of nearly 40% were obtained in a film made from this molecule under an applied field of 706 kv/cm. A fast response time of for the grating formation, 42 ms under 616 kv/cm, was observed.
Author :
Publisher :
ISBN 13 :
Total Pages : 1148 pages
Book Rating : 4.E/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Geoffrey A. Lindsay
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.3/5 (91 download)
Download or read book Polymers for Second-order Nonlinear Optics written by Geoffrey A. Lindsay and published by . This book was released on 1995 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the most recent developments in second-order nonlinear optical polymers. Covers the most important technologies necessary to achieve commercially viable devices based on special polymeric materials with second-order nonlinear optical properties. Discusses important molecular design considerations, how to process the polymers into films, the stability of the films, their optical properties, and prototype devices that can be made from these films.
Author : Kwang-Sup Lee
Publisher : Springer Science & Business Media
ISBN 13 : 3540431578
Total Pages : 222 pages
Book Rating : 4.5/5 (44 download)
Download or read book Polymers for Photonics Applications II written by Kwang-Sup Lee and published by Springer Science & Business Media. This book was released on 2003-03-05 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future of information technology requires ultra high speed processing and large data storage capacity. Since the electronics technology using semi conduc tors and inorganic materials is about to reach its limits, much current research is focused on utilizing much faster photons than electrons, namely photonics. To achieve any significant effect on the actual use of the science of photonics, devel opments of more efficient photonics materials, better optical property evaluations, manufacture of devices for system applications, etc. are the subjects which need to be explored. In particular, the development of photonics materials stands in the forefront of research as this constitutes the most pertinent factor with regard to the development of ultra high speed and large capacity information processing. In this respect, there has been continuous research on photo responsive materials through molecular structure design and architecture and the results so far are very promising as functions and performances are beginning to realize their high expectations. The two special volumes "Polymers for Photonics Applications" give authorita tive and critical reviews on up to date activities in various fields of photonic poly mers including their promising applications. Seven articles have been contributed by internationally recognized and they deal with, polymers for second and third order nonlinear optics, quadratic parametric interactions in polymer waveguides, electroluminescent polymers as light sources, photoreflective polymers for holo graphic information storage, and highly efficient two photon absorbing organics and polymers.
Author : American Chemical Society. Meeting
Publisher :
ISBN 13 :
Total Pages : 545 pages
Book Rating : 4.:/5 (113 download)
Download or read book Polymers for Second-order Nonlinear Optics written by American Chemical Society. Meeting and published by . This book was released on 1995 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K.-S. Lee
Publisher : Springer Science & Business Media
ISBN 13 : 3540423842
Total Pages : 273 pages
Book Rating : 4.5/5 (44 download)
Download or read book Polymers for Photonics Applications I written by K.-S. Lee and published by Springer Science & Business Media. This book was released on 2002-01-11 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two special volumes of Advances in Polymer Science entitled "Polymers for Photonics Applications" provide authoritative and critical reviews of up-to-date research and advances in various fields of photonic polymers as well as their promising applications. Eight articles contributed by internationally recognized scientists are concerned with polymers for second- and third-order nonlinear optics, quadratic parametric interactions in polymer waveguides, electroluminescent polymers for light sources, photoreflective polymers for holographic information storage, and highly efficient two-photon absorbing organics and polymers, including their applications. This review should provide individuals working in the field of photonic polymers with invaluable scientific knowledge on the state of the art while giving directions for future research to those deeply interested.
Author : United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.3/5 (91 download)
Download or read book AFOSR Chemical & Atmospheric Sciences Program Review written by United States. Air Force. Directorate of Chemical and Atmospheric Sciences and published by . This book was released on with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Messier
Publisher : Springer Science & Business Media
ISBN 13 : 9400922957
Total Pages : 393 pages
Book Rating : 4.4/5 (9 download)
Download or read book Nonlinear Optical Effects in Organic Polymers written by J. Messier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonics, the counterpart of electronics, involves the usage of Photons instead of electrons to process information and perform various switching operations. Photonics is projected to be the technology of the future because of the gain in speed, processing and interconnectivity of network. Nonlinear optical processes will play the key role in photonics Where they can be used for frequency conversion, optical switching and modulation. Organic molecules and polymers have emerged as a new class of highly promising nonlinear optical materials Which has captured the attention of scientists world wide. The organic systems offer the advantage of large nonresonant nonlinearities derived from the 1T electrons contribution, femtosecond response time and the flexibility to modify their molecular structures. In addition, organic polymers can easily be fabricated in various device structures compatible with the fiber-optics communication system. The area of nonlinear optics of organic molecules and polymers offers exciting opportunities for both fundamental research and technologic development. It is truly an interdisciplinary area. This proceeding is the outcome of the first NATO Advanced Research WOrkshop in this highly important area. The objective of the workshop was to provide a forum for scientists of varying background from both universities and industries to come together and interface their expertize. The scope of the workshop was multidisciplinary with active participations from Chemists, physicists, engineers and materials scientists from many countries.
Author : Reza Arshady
Publisher :
ISBN 13 :
Total Pages : 846 pages
Book Rating : 4.3/5 (91 download)
Download or read book Desk Reference of Functional Polymers written by Reza Arshady and published by . This book was released on 1997 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the synthesis, properties, and current and potential applications of a wide variety of functional polymers in four major areas: radiation effects and applications, opolelectronic properties and applications, chemical and physicochemical applications, and biomedical applications. Reviews the general synthetic methods for preparing functional polymers. Examines functional polymers with properties of interest in such fields as microlithography, photochemistry, nonlinear optics, electrical conductivity, chemical sensors, electron and energy transfer processes, polymeric liquid crystalline networks, chiral liquid crystalline polymers, solar energy utilization, floculation of minerals, catalysis, polymeric dental aids, polymer-drug conjugates, biocompatible polymer surfaces, and drug targeting by functional polymers.
Author : Carlos Lodeiro
Publisher : Frontiers Media SA
ISBN 13 : 288945987X
Total Pages : 121 pages
Book Rating : 4.8/5 (894 download)
Download or read book Rational Design of Multi-Functional Nanomaterials written by Carlos Lodeiro and published by Frontiers Media SA. This book was released on 2019-08-16 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most important issues, when a nanomaterial is designed, is to control the synthetic pathways to ensure the final desired product. A combination of dry and wet procedures, as well as chemical and physical methodologies, it is possible to successfully prepare new multifunctional nanomaterials, often as a result of multidisciplinary cooperation between chemists, physics, biologist, physicians, material engineers, etc. Drug delivery, environmental detection of contaminants, and many industrial applications directly rely on properties such as water solubility, permeability, cell penetration, shape control, and size of the monodispersed nanoparticle, among others. Functionalized nanomaterials play a crucial role in modern research areas because of their unique physical and chemical properties, explored in many different fields including medicine and biology, new materials, pharmacology as drug delivery systems, and in environmental analysis for sensing new contaminants, among other technical and industrial applications. For future technological applications, the rational design of these multifunctional nanomaterials is critical, and often depends on the excellent control of the organic and inorganic chemical reactions involved during production. The success of their applications relies directly on the photophysical properties created in the final material, including the emission of light or colorimetric responses, water solubility, selectivity, sensitivity, stability, etc. For example, from an analytical point of view, the detection and quantification of emerging analytes is directly dependent on the selectivity and sensitivity showed by the material in a complex media.
Author :
Publisher :
ISBN 13 :
Total Pages : 776 pages
Book Rating : 4.3/5 (91 download)
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309087007
Total Pages : 660 pages
Book Rating : 4.3/5 (9 download)
Download or read book Materials Research to Meet 21st-Century Defense Needs written by National Research Council and published by National Academies Press. This book was released on 2003-03-25 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to achieve the revolutionary new defense capabilities offered by materials science and engineering, innovative management to reduce the risks associated with translating research results will be needed along with the R&D. While payoff is expected to be high from the promising areas of materials research, many of the benefits are likely to be evolutionary. Nevertheless, failure to invest in more speculative areas of research could lead to undesired technological surprises. Basic research in physics, chemistry, biology, and materials science will provide the seeds for potentially revolutionary technologies later in the 21st century.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book Design, Methodology and Preparation of Novel Polymers for Nonlinear Optics written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-pot post-polymerization modification reactions such as azo-coupling and tricyanovinylation reactions were employed to synthesize a series of polymers containing different nonlinear optical (NLO) chromophoric as well as ionic functionalities. We have extended and established the versatility of our earlier reported post-modification strategy to incorporate various heteroaromatic chromophores as well as ionic functionalities in the polymers, at the final stage of synthesis. The correlation between different heteroaromatic chromophore structures and the NLO properties of the polymers was extensively studied, Polymers containing heteroaromatic chromophores exhibit improved temporal stability and enhanced NLO activity. Polymers with ionic chromophores were employed to fabricate NLO active ultra-thin films using electrostatic self-assembling (ESA) technique. Attempts were also made to synthesize second order NLO active polydiacetylene derivatives using post azo-coupling reaction.
Author :
Publisher :
ISBN 13 :
Total Pages : 59 pages
Book Rating : 4.:/5 (227 download)
Download or read book Design of New Multi-Functional Electroactive Polymers with Emphasis on Optical Nonlinearity written by and published by . This book was released on 1994 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis and processing of organic second-order nonlinear optical materials for fabrication of electro-optic modulators are discussed. Topics dealt with in order include (1) synthesis for chromophores characterized by large hyperpolarizability and good thermal stability, (2) covalent coupling of nonlinear optical chromophores to polymer lattices, (3) lattice hardening reactions which permit locking-in of electric field poling-induced macroscopic noncentrosymmetric order, (4) fabrication of buried channel nonlinear optical waveguides by photochemical and reactive ion etching techniques, (5) coupling of nonlinear optical waveguides to fiber optic transmission lines and drive electronics, (6) prototype device fabrication and evaluation. Various device configurations are reviewed and recent advances in applications are discussed. Comparison is made between the performance of organic and inorganic materials for electro-optic modulation applications.
Author : Vassilios Galiatsatos
Publisher : John Wiley & Sons
ISBN 13 : 0471464813
Total Pages : 325 pages
Book Rating : 4.4/5 (714 download)
Download or read book Molecular Simulation Methods for Predicting Polymer Properties written by Vassilios Galiatsatos and published by John Wiley & Sons. This book was released on 2005-02-03 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the thousands of synthesized polymers, new polymeric substances and materials with new, often unusual, properties often arise. Consequently, this presents a problem in determining the physical properties of polymers, and thus makes it difficult to ascertain how to synthesize polymers with desired properties. This book discusses what molecular modelling can do to predict the properties of realistic polymer systems. Organized by property, each chapter will address the methods one may use to study the particular system. * Focuses on polymer properties rather than methods, making it more accessible to the average scientist/engineer * All important polymers will be covered, such as amorphous polymers, semicrystalline polymers, elastomers, emulsions, polymer interfaces and surfaces * Chapters contributed by experts in the field * Discusses current commercial software used in molecular simulation
