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Preparation Of Stable Photopatternable Polymeric Materials For Non Linear Optics
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Book Synopsis Preparation of Stable Photopatternable Polymeric Materials for Non- Linear Optics by :
Download or read book Preparation of Stable Photopatternable Polymeric Materials for Non- Linear Optics written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several new functionalized chromophores have been prepared and tested in the preparation of optically stable, photopatternable, NLO polymers for second harmonic generation at the diode laser wavelength of 820 nm. In particular, chromophores containing the sulfonamide or sulfonate ester functionalities have been found to be extremely versatile as they allow attachment of a polymerizable group at the electron-poor end of NLO chromophores. The results of model studies confirm that the sulfonamide groups do not have a deleterious effect on NLO properties. Several new monomers containing 4-alkoxy-4'- sulfonamido-stilbene moieties have been prepared. The 4- alkoxy end of the chromophore 'is designed to allow its incorporation into a linear polymer backbone. The sulfonamido end of the chromophore has a polymerizable double bond that can be photocrosslinked after poling of the chromophores. As it is extremely important to carry out the photopatterning step without affecting the NLO chromophore or introducing any color into the imaged polymer, novel photoinitiators were tested and found to be suitable. The radiation induced photo-patterning step can be done without causing isomerization of the stilbene chromophores, or introducing any color into the patterned coating.
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 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 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Polymeric Coatings for Photopatterning and Second Order Nonlinear Optical Materials by : Jody E. Beecher
Download or read book Advanced Polymeric Coatings for Photopatterning and Second Order Nonlinear Optical Materials written by Jody E. Beecher and published by . This book was released on 1994 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Thermally Stable Modular High-T[subscript G] Second-order Polymeric Nonlinear Optical Materials by : Eric Tyrone Crumpler
Download or read book Synthesis and Characterization of Thermally Stable Modular High-T[subscript G] Second-order Polymeric Nonlinear Optical Materials written by Eric Tyrone Crumpler and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design, Methodology and Preparation of Novel Polymers for Nonlinear Optics by :
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.
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 1994 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Polymers in Telecommunication Devices by : G. H. Cross
Download or read book Polymers in Telecommunication Devices written by G. H. Cross and published by iSmithers Rapra Publishing. This book was released on 2002 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the use of the use of polymers instead of and in conjunction with, traditional platforms such as indium phosphide and ferroelectric ceramic lithium niobate. Critical comparisons are made between use of polymers and alternative. This review report gives an overview of all the elements of optical transmission and switching systems that are used in telecommunications and is a fully interdisciplinary account of materials and device design issues. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synopses written by and published by . This book was released on 195? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Polymeric Electro-optic Materials by : Jayant Kumar
Download or read book Organic Polymeric Electro-optic Materials written by Jayant Kumar and published by . This book was released on 1993 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Temperature Polymer for Second Order Nonlinear Optics for Photonic Materials by : Hilary S. Lackritz
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.
Book Synopsis Photonics for Space Environments by :
Download or read book Photonics for Space Environments written by and published by . This book was released on 1995 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Design, Synthesis and Characterization of Polymeric Nonlinear Optical Materials by : Yi Jin
Download or read book Molecular Design, Synthesis and Characterization of Polymeric Nonlinear Optical Materials written by Yi Jin and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear optical Properties of organic and polymeric materials by :
Download or read book Nonlinear optical Properties of organic and polymeric materials written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 New Approaches to Polymeric Nonlinear Optical Materials by : Jun Young Lee
Download or read book New Approaches to Polymeric Nonlinear Optical Materials written by Jun Young Lee and published by . This book was released on 1992 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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