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Relaxation Studies And Molecular Design Of Second Order Nonlinear Optical Polymers
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Book Synopsis Relaxation Studies and Molecular Design of Second Order Nonlinear Optical Polymers by : Sutiyao Marturunkakul
Download or read book Relaxation Studies and Molecular Design of Second Order Nonlinear Optical Polymers written by Sutiyao Marturunkakul and published by . This book was released on 1993 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymers for Second-order Nonlinear Optics by : Geoffrey A. Lindsay
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.
Book Synopsis Molecular Design of Stable Second Order Nonlinear Optical Polymers by : B. K. Mandal
Download or read book Molecular Design of Stable Second Order Nonlinear Optical Polymers written by B. K. Mandal and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The temporal and thermal stability of second order nonlinear optical properties of polymers is an important issue in the development of polymeric electro-optic devices. This has been addressed by introducing interchain crosslinking. A number of crosslinked systems developed by photochemical reactions have been presented. The important parameters necessary for device fabrication in polymers are ease of processability, stable (at least upto 100 C) nonlinear susceptibility (X2) and low optical loss. Each of these factors are equally important if polymeric materials are to play a role in integrated optical devices. The processability of polymeric materials can provide significant advantages over their inorganic counterparts. Most inorganic second order nonlinear optical (NLO) materials are crystalline and good quality single crystals of reasonable dimensions have to be grown to have low optical losses.
Book Synopsis Polymers for Photonics Applications II by : Kwang-Sup Lee
Download or read book Polymers for Photonics Applications II written by Kwang-Sup Lee and published by Springer. This book was released on 2003-07-03 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.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design, Synthesis and Characterization of Second Order Nonlinear Optical Polymers by : Zhiyong Liang
Download or read book Design, Synthesis and Characterization of Second Order Nonlinear Optical Polymers written by Zhiyong Liang and published by . This book was released on 1995 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Optical Effects in Organic Polymers by : J. Messier
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.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Studies of Nonlinear Optical Properties of Conjugated Polymers by :
Download or read book Theoretical Studies of Nonlinear Optical Properties of Conjugated Polymers written by and published by . This book was released on 1993 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the non-linear optical properties of polymeric systems is a challenging and exciting field of research ranging from device engineering, optical measurements, chemical synthesis to design and theoretical issues. At the present time, most of the basic science needed for the synthesis of molecules and the design of devices utilizing second order optical susceptibilities is in hand, although certain issues remain to be resolved. On the other hand, many important questions regarding the design and use of third order optical susceptibilities are still unanswered. The earliest ideas of the importance of low dimensionality optical band gaps suggests the use of conjugated molecules. At present, there is considerable effort, both experimentally and theoretically, in optimizing the value of gamma for polymers or oligomers with conjugated segments, because such conjugated polymers (like polyacetylene, polythiophenes, and the poly-diacetylenes) have very large gamma. These polymers have also been under intense scrutiny because of their large conductivities when doped. Although we are beginning to understand the theoretical reasons for the various unusual properties of the materials, we do not understand the factors that limit the ultimate value of gamma. For example, what are the important structures and interactions in the molecule the prevent gamma from being as large as possible while still having a small absorption coefficient, and how can we design molecules with these constraints in mind.
Book Synopsis Characterization Techniques and Tabulations for Organic Nonlinear Optical Materials by : Carl W. Dirk
Download or read book Characterization Techniques and Tabulations for Organic Nonlinear Optical Materials written by Carl W. Dirk and published by Routledge. This book was released on 2018-05-11 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: ""Furnishes table of nonlinear optical properties of organic substances as well as experimental procedures for measuring the nonlinearity of the elements tabulated, including composite materials-offering support for scientists and engineers involved in characterizing, optimizing, and producing materials for manufacturing optical devices.
Book Synopsis Organic Molecules for Nonlinear Optics and Photonics by : J. Messier
Download or read book Organic Molecules for Nonlinear Optics and Photonics written by J. Messier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonics is being labelled by many as the technology for the 21st century. Because of the structural flexibility both at the molecular and bulk levels, organic materials are emerging as a very important class of nonlinear optical materials to be used for generating necessary nonlinear optical functions for the technology of photonics. Since the last NATO advanced research workshop on "Polymers for Nonlinear Optics"held in June 1988, at Nice - Sophia Antipolis, France. there has been a tremendous growth of interest worldwide and important development in this field. Significant progress has been made in theoretical modeling, material development, experimental studies and device concepts utilizing organic materials. These important recent developments provided the rationale for organizing the workshop on "Organic Materials for Nonlinear Optics and Photonics" which was held in La Rochelle, France, in August 1990. This proceeding is the outcome of the workshop held in La Rochelle. The objective of the workshop was to bring together scientists and engineers of varied backgrounds working in this field in order to assess the current status of this field by presenting significant recent developments and make recommendations on future directions of research. The workshop was multidisciplinary as it had contributions from chemists, physicists, materials scientists and device engineers. The participants were both from industries and universities. The workshop included plenary lectures by leading international scientists in this field, contributed research papers and a poster session. Panel discussion groups were organized to summarize important developments and to project future directions.
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dipolar Relaxation in a Second-Order Nonlinear Optical Interpenetrating Polymer Network by :
Download or read book Dipolar Relaxation in a Second-Order Nonlinear Optical Interpenetrating Polymer Network written by and published by . This book was released on 1993 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature of the relaxation process of the poled order in an interpenetrating polymer network (IPN) system is found to be fundamentally different from that of a guest/host system. The IPN (Tg= 176 deg C) consists of a nonlinear optical (NLO) active epoxy-based polymer network and an NLO active phenoxy-silicon polymer network. The decay behavior of the second-order nonlinearity of this IPN was investigated in the range from 110 to 170 deg C. The stability of this IPN is superior to those of classic guest/host polymers as indicated by longer relaxation times at temperatures from 110 to 130 deg C. The relaxation process of the IPN system follows Arrhenius type behavior at temperatures ranging from 140 to 170 deg C. The IPN system provides a new approach to processing for stabilization of the second-order nonlinear optical properties. Relaxation, Interpenetrating polymer network, Nonlinear optical, Arrhenius.
Book Synopsis Nonlinear Optical Properties of Polymers: Volume 109 by : Alan J. Heeger
Download or read book Nonlinear Optical Properties of Polymers: Volume 109 written by Alan J. Heeger and published by Mrs Proceedings. This book was released on 1988-04 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Book Synopsis Design and Synthesis of Interpenetrating Polymer Networks for Second-Order Nonlinear Optics by :
Download or read book Design and Synthesis of Interpenetrating Polymer Networks for Second-Order Nonlinear Optics written by and published by . This book was released on 1995 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a tremendous recent interest in the development of second-order nonlinear optical (NLO) polymeric materials for photonic applications. However, a major drawback of second-order NLO polymers that prevents them from being used in device applications is the instability of their electric field induced dipolar alignment. The randomization of the dipole orientation leads to the decay of second-order optical nonlinearities. Numerous efforts have been made to increase the stability of the second-order NLO properties of polymers. The search for new approaches to develop NLO polymers with optimal properties has been an active research area since the past decade. A novel approach, combining the hybrid properties of high glass transition temperatures, extensively crosslinked networks, and permanent entanglements, based on interpenetrating polymer networks (IPN) is introduced to develop stable second-order NLO materials. Two types of IPN systems are prepared and their properties are investigated. The designing criteria and the rationale for the selection of polymers are discussed. The IPN samples show excellent temporal stability at elevated temperatures. Long term stability of the optical nonlinearity at 100 C has been observed in these materials. Temporal stability of the NLO properties of these IPNs is synergistically enhanced. Relaxation behavior of the optical nonlinearity of an IPN system has been studied and compared with that of a typical guest/host system. The improved temporal stability of the second-order NLO properties of this IPN system is a result of the combination of the high rigidity of the polymer backbones, crosslinked matrices, and permanent entanglements of the polymer networks. A slight modification of the chemical structure resulted in an improvement of the optical quality of the sample.
Book Synopsis Poled Polymers and Their Applications to SHG and EO Devices by : Seizo Miyata
Download or read book Poled Polymers and Their Applications to SHG and EO Devices written by Seizo Miyata and published by CRC Press. This book was released on 2020-12-18 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poled polymers doped with nonlinear optically active chromophores combine the large second order nonlinearity of the dopant dye molecules with the optical quality of the polymer. The material design flexibility afforded to doped polymers makes them attractive in a large variety of devices and applications. This book addresses the critical science and technology issues in the development and application of poled polymers, with an emphasis on the stabilization of poled polymers and their special applications to second harmonic generation (SHG) and electro-optic (EO) devices.
Book Synopsis Polymers for Second-order Nonlinear Optics by : American Chemical Society. Meeting
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:
