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Author : Ru Jong Jeng
Publisher :
ISBN 13 :
Total Pages : 290 pages
Book Rating : 4.:/5 (321 download)
Download or read book Stable Second-order Nonlinear Optical Polymeric Materials written by Ru Jong Jeng and published by . This book was released on 1993 with total page 290 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 : B. K. Mandal
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (227 download)
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.
Author : Hari Singh Nalwa
Publisher : CRC Press
ISBN 13 : 0429611617
Total Pages : 896 pages
Book Rating : 4.4/5 (296 download)
Download or read book Nonlinear Optics of Organic Molecules and Polymers written by Hari Singh Nalwa and published by CRC Press. This book was released on 2020-07-09 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of nonlinear optics emerged three decades ago with the development of the first operating laser and the demonstration of frequency doubling phenomena. These milestone discoveries not only generated much interest in laser science, but also set the stage for future work on nonlinear optics. This book presents an excellent overview of the exciting new advances in nonlinear optical (NLO) materials and their applications in emerging photonics technologies. It is the first reference source available to cover every NLO material published through 1995. All theoretical approaches, measurement techniques, materials, technologies, and applications are covered. With more than 1,800 bibliographic citations, 324 figures, 218 tables, and 812 equations, this book is an invaluable reference source for graduate and undergraduate students, researchers, scientists and engineers working in academia and industries in chemistry, solid-state physics, materials science, optical and polymer engineering, and computational science.
Author : S. Marturunkakul
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Interpenetrating Polymer Network as a Stable Second Order Nonlinear Optical Material: Comparison with the Guest/Host Systems written by S. Marturunkakul and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric materials with second order nonlinear optical (NLO) properties are of much interest for applications such as waveguide electrooptic modulation and frequency doubling devices. These NLO properties are presented when the chromophores are aligned in a noncentrosymmetric manner. The alignment of NLO chromophores in the poled polymers must be sufficiently stable at temperatures above 100 deg C in order to use them in practical devices. Several approaches have been adopted to enhance the temporal stability of the poled polymers. Enhanced temporal stability of second order NLO properties in several poled polymer systems has been achieved by crosslinking reactions. The resulting crosslinked network has a higher glass transition temperature and a denser matrix which prevent the aligned NLO chromophores from relaxing to a random orientation. However, slow decay of second order NLO properties at elevated temperatures was still observed in the polymers. Furthermore, the general form of the relaxation curves for the crosslinking polymers do not appear to be distinctly different from those for the guest/host systems. We have selected an interpenetrating polymer network (IPN) containing aligned NLO chromophores to test these issues. An IPN is a structure in which two or more networks are physically combined. The IPN is known to be able to remarkably suppress the creep and flow phenomena in polymers. Permanent entanglement of the two polymer chains restrict their mobility which leads to a significantly more stable NLO material. In this paper, we report on the design, synthesis and characterization of an NLO active IPN ... Interpenetrating polymer network, Nonlinear optical polymer.
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 :
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (227 download)
Download or read book Photocrosslinkable Polymers with Stable Second Order Optical Nonlinearity written by and published by . This book was released on 1992 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear and nonlinear optical properties of photocrosslinkable polymers are reported. These polymers exhibit relatively stable second order nonlinearity. Electro-optic and second harmonic generation coefficients are reported for these new materials. Nonlinear optical photocrosslinkable polymers.
Author : Hilary S. Lackritz
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (227 download)
Download or read book High Temperature Polymer for Second Order Nonlinear Optics for Photonic Materials written by Hilary S. Lackritz and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are examining a variety of novel high temperature stable polymers as new materials for second order nonlinear optical (NLO) and photorefractive devices. Current polymers have sufficient optical signal generated by available chromophores, but are not practical for device applications because of limitations in the temporal stability of the dopant orientation in the polymer caused by poor thermal stability of the host. This is a novel approach for developing a new class of photonic materials with superior thermal and temporal stability and is the first attempt to design a second order NLO polymer with controllable, tailorable local physical and electrical properties. A second, equally important goal is to understand the basic polymer physics controlling the thermal and temporal stability of the optical chromophore orientation. This will determine not only the overall efficiency of the materials for device applications, but will generate substantial information about mobility in high temperature stable polymer systems.
Author : Seizo Miyata
Publisher : CRC Press
ISBN 13 : 1000124681
Total Pages : 290 pages
Book Rating : 4.0/5 (1 download)
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 2020-12-17 with total page 290 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.
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 : 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 :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (227 download)
Download or read book Stable Second-Order Nonlinear Optical Materials Based on Interpenetrating Polymer Networks written by and published by . This book was released on 1994 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear optical (NLO) polymers have shown increased potential in practical applications, such as frequency doubling and electro-optic modulation, due to their large nonlinearity and ease of processing. A practical NLO polymer will need to possess large second-order nonlinearity, excellent temporal stability at elevated temperatures, and low optical loss. 1 A number of NLO polymers have been developed to exhibit large second-order NLO coefficients comparable to those of the inorganic NLO materials which are currently in use in devices. 2,3 However, the major drawback of NLO polymers is the decay of their electric field induced second-order optical nonlinearities. This decay is a result of the relaxation of the NLO chromophores from the induced noncentrosymmetric alignment to a random configuration. Numerous efforts have been made to minimize this decay through different approaches. 4 Recently, we have reported on an approach to stable second-order NLO polymers using an interpenetrating polymer network (IPN) structure. 5,6 This IPN system, with the hybrid properties of a high glass transition temperature (Tg), an extensively crosslinked network, and permanent entanglements, exhibited excellent temporal stability at elevated temperatures. 6 In this report, a new IPN system, modified from the one reported earlier,5 with higher degree of crosslinking density and larger NLO chromophore density is investigated. Electro-optic modulation, Interpenetrating polymer network, Second-order nonlinearity, Optical loss.
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hatada
Publisher : CRC Press
ISBN 13 : 9780824794651
Total Pages : 900 pages
Book Rating : 4.7/5 (946 download)
Download or read book Macromolecular Design of Polymeric Materials written by Hatada and published by CRC Press. This book was released on 1997-01-02 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a range of information on polymers and polymerization techniques, this text covers the gamut of polymer science from synthesis, structure and properties to function and applications. It analyzes speciality polymers, including acrylics, fluoropolymers, polysiplanes, polyphosphazenes, and inorganic and conducting polymers. The book examines the stereochemistry of polymerization and the stereoregularity of polymers.
Author : Xiaogong Wang
Publisher : Springer
ISBN 13 : 366253424X
Total Pages : 238 pages
Book Rating : 4.6/5 (625 download)
Download or read book Azo Polymers written by Xiaogong Wang and published by Springer. This book was released on 2016-10-19 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores functional polymers containing aromatic azo chromophores in side-chain, main-chain and other parts of their structures, known as azo polymers and which share common photoresponsive properties. It focuses on the molecular architecture of azo polymers, the synthetic methods and their most important functions, such as photoinduced birefringence and dichroism, surface-relief-grating (SRG) formation, and light-driven deformation of liquid crystal elastomers. It combines a general survey of the subject and in-depth discussions of each topic, including numerous illustrations, figures, and photographs. Offering a balance between an introduction to the core concepts and a snapshot of hot and emerging topics, it is of interest to graduate students and researchers working in this and related fields. Xiaogong Wang is a Professor at the Department of Chemical Engineering, Tsinghua University, China.
Author : Paras N. Prasad
Publisher : Springer Science & Business Media
ISBN 13 : 1461524474
Total Pages : 691 pages
Book Rating : 4.4/5 (615 download)
Download or read book Frontiers of Polymers and Advanced Materials written by Paras N. Prasad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the Second International Conference on Frontiers of Polymers and Advanced Materials held in Jakarta, Indonesia during January 10-15, 1993. This conference was organized and sponsored by the Indonesian Institute of Sciences (LIPI), the State University of New York (SUNY) at Buffalo, the Agency for Assessment and Application of Technology (BPPT), and the Indonesian Polymer Association. The 244 participants represented a total of 24 countries and a wide variety of academic, industrial and government groups. The inauguration was held in the Royal Palace and was performed by President Soeharto of Indonesia. High level media coverage ensured worldwide recognition. The need for such a conference was emphasized by the fact that polymers have emerged as an important class of materials offering challenging opportunities for both fundamental research and new technological applications. There has been a tremendous growth of interest in the field of polymers, both in academia and in industry, and polymer science offers tremendous opportunities for both fundamental and applied work. This globally represented Second International Conference on Frontiers of Polymers and Advanced Materials was timely, especially given the current heightened enthusiasm for polymers and emerging novel applications.
Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (227 download)
Download or read book Stable Second-Order Optical Nonlinearity in Novel Photocrosslinkable Polymers written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Characterization of novel photocrosslinkable second-order nonlinear optical (NLO) polymers are presented. These polymer systems have been designed with nonlinear optical moieties in the polymer main chain. When poled and sufficiently photocrosslinked, these polymers exhibit relatively stable second-order nonlinearity at room temperature. The linear optical and second order NLO properties of these recently synthesized polymers have been investigated. Second harmonic generation (SHG) was utilized to monitor the temporal stability of the nonlinearity. The linear electro-optic coefficients were measured with a modified Michelson interferometer.
