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Chromophores for Electro-Optics and Optical Switching

Chromophores for Electro-Optics and Optical Switching
Author:
Publisher:
Total Pages: 37
Release: 1998
Genre:
ISBN:
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Two-photon absorption spectra have been measured for bis-donor diphenylpolyene derivatives with varying conjugation lengths and end groups. Large two-photon absorptivities are observed via nanosecond nonlinear transmission measurements in comparison to picosecond nonlinear transmission and two-photon excited fluorescence methods, which suggests a large contribution of excited-state absorption to the nanosecond nonlinear transmission results. Chromophores with conformationally locked bridges have been synthesized and the optical nonlinearity and thermal stability has been examined. It was found that relative to the normal polyene bridges, chromophores with confirmationally locked bridges exhibit improved thermal stability without a significant change in optical nonlinearity. A series of chromophores containing diarylamino donors have been synthesized and exhibit large optical nonlinearities, good thermal-thermal stabilities and enhance photochemical stabilities relative to compounds with dialkylamino donors. Functionalized versions of these chromophores have been synthesized for covalent incorporation into high performance polymers, for electro-optic applications.

Quantum-chemical Investigations of Second- and Third-order Nonlinear Optical Chromophores for Electro-optic and All-optical Switching Applications

Quantum-chemical Investigations of Second- and Third-order Nonlinear Optical Chromophores for Electro-optic and All-optical Switching Applications
Author: Amalia Agnew
Publisher:
Total Pages:
Release: 2006
Genre: Nonlinear optics
ISBN:
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The past decades have witnessed the development of new materials with large nonlinear optical properties, which have made them attractive candidats for a broad spectrum of breakthrough applications in the electro-optic and photonic fields (e.g., telecommunication and computing). A deeper understanding of the relationship between, on the one hand, the chemical structure and, on the other hand, the electronic and (linear and nonlinear) optical properties has proven useful for the rational design of new efficient materials. Reaching such an understanding has attracted major interest in the scientific community worldwide in both academia and industry. Therefore, the development of new efficient NLO chromophores and materials along with commercial devices of high quality is helped via the establishment of multidisciplinary research teams combining: (i) the theoretical modeling using quantum-chemical computational calculations; (ii) the organic synthesis; (iii) the optical characterization; and (iv) the device fabrication. In this dissertation, quantum-chemistry is used to evaluate the second- and third-order NLO properties of series of new chromophores and take advantage of a feedback loop with the experimental team to understand the structure-property relationships.

Organic Electro-Optics and Photonics

Organic Electro-Optics and Photonics
Author: Larry R. Dalton
Publisher: Cambridge University Press
Total Pages: 305
Release: 2015-07-30
Genre: Technology & Engineering
ISBN: 0521449650
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Definitive guide to modern organic electro-optic and photonic technologies, from basic theoretical concepts to practical applications in devices and systems.

Electrical and Optical Polymer Systems

Electrical and Optical Polymer Systems
Author: Donald L. Wise
Publisher: CRC Press
Total Pages: 1266
Release: 1998-03-27
Genre: Science
ISBN: 9780824701185
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"Offers background information, methods of characterization, and applications for electrical and optical polymers, including biopolymers, and tutorial sections that explain how to use the techniques."

Photonic Switching

Photonic Switching
Author: T. Kenneth Gustafson
Publisher: Springer Science & Business Media
Total Pages: 225
Release: 2012-12-06
Genre: Science
ISBN: 3642733883
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The first topical meeting on Photonic Switching was held March 18-20, 1987 in Incline Village, Nev., USA in conjunction with the second topical meeting on Optical Computing. It was sponsored by the IEEE Lasers and Electro-Optics Society and the Optical Society of America with the co operation of the IEEE Communications Society. The attendance at these meetings was well in excess of 500 persons - a measure of the growing worldwide interest in optical techniques for switching and signal process ing. Our goal in organizing the Photonic Switching meeting was to provide a forum for the presentation of original papers on the subjects of devices and architectures suitable for switching, multiplexing or routing of optical signals. The purpose of the meeting was to foster and enhance interaction between two groups that share a common interest in exploring possible applications of photonic switching technology: people working on optical switching devices and components, and people working on future switching systems and networks.

Processing of Novel Chromophores for Electro-Optic Applications

Processing of Novel Chromophores for Electro-Optic Applications
Author:
Publisher:
Total Pages: 0
Release: 1997
Genre:
ISBN:
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Our program involves development and applications of second-order optical materials which are also multifunctional, i.e., they exhibit more than one functionality and in some cases, new properties derived from a combination of more than one functionality . We specifically focused on applications in electro-optic modulation and photorefracitivity. Our effort has focused on developing electro-optic chromophores which offer extended transparency in the visible (to 633 nm), large r-coefficient, as well as high thermal and temporal stability of electrically poled alignment. Earlier we have developed an electro-optic chromophore, APSS, which was processed using an isocyanate containing liquid polymer to produce a thermally stable electrically poled polyurethane based electro-optic polymer. In order to further improve on optical losses in the visible range (633nm), enhance thermal stability and achieve a better control of the poling process, we have made chemical modifications and synthesized a related chromophore APSAS. This chromophore containing linkable four hydroxy sites, permits the usage of a smaller isocyanate, tolulene diisocyanate, with broader optical transparency, to produce rigid cross-linked polyurethane structures. In addition, we tested waveguide parameters of these chromophores. A waveguide modulator was fabricated using APSS to study processing optimization of this modulator. APSS and APSAS also exhibit multifunctionality: A strong two-photon absorption, photobleaching and up-converted emission. APSS exhibits photobleaching when illuminated with high peak power femtosecond pulse lasers. Utilizing this photobleaching 3D optical data storage was illustrated with a Buggs Bunny cartoon video in which each movie frame was stored in layers 5 microns apart. The two-photon exited photosensitization using APSS was also use for a new approach of two-photon photo.

Nonlinear Optical Effects and Materials

Nonlinear Optical Effects and Materials
Author: Peter Günter
Publisher: Springer
Total Pages: 550
Release: 2012-12-06
Genre: Science
ISBN: 3540497137
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Describing progress achieved in the field of nonlinear optics and nonlinear optical materials, the Handbook treats selected topics such as photorefractive materials, third-order nonlinear optical materials and organic nonlinear optical crystals, as well as electro-optic polymers. Applications of photorefractive materials in optical memories, optical processing, and guided-wave nonlinear optics in hotorefractive waveguides are described. As light will play a more and more dominant role as an information carrier, the review of existing and new materials given here makes this a keystone book in the field.

Handbook of Optoelectronics (Two-Volume Set)

Handbook of Optoelectronics (Two-Volume Set)
Author: John P. Dakin
Publisher: CRC Press
Total Pages: 1616
Release: 2010-12-12
Genre: Technology & Engineering
ISBN: 1420012010
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A field as diverse as optoelectronics needs a reference that is equally versatile. From basic physics and light sources to devices and state-of-the-art applications, the Handbook of Optoelectronics provides comprehensive, self-contained coverage of fundamental concepts and practical applications across the entire spectrum of disciplines encompassed by optoelectronics. The handbook unifies a broad array of current research areas with a forward-looking focus on systems and applications. Beginning with an introduction to the relevant principles of physics, materials science, engineering, and optics, the book explores the details of optoelectronic devices and techniques including semiconductor lasers, optical detectors and receivers, optical fiber devices, modulators, amplifiers, integrated optics, LEDs, and engineered optical materials. Applications and systems then become the focus, with sections devoted to industrial, medical, and commercial applications, communications, imaging and displays, sensing and data processing, spectroscopic analysis, the art of practical optoelectronics, and future prospects. This extensive resource comprises the efforts of more than 70 world-renowned experts from leading industrial and academic institutions around the world and includes many references to contemporary works. Whether used as a field reference, as a research tool, or as a broad and self-contained introduction to the field, the Handbook of Optoelectronics places everything you need in a unified, conveniently organized format.