Ebook: Nonlinear Optical Effects in Organic Polymers

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.

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Content:
Front Matter....Pages i-xiv
Impact of Dimensionality in the Optical Nonlinearities....Pages 1-12
Theoretical Design of Organic Molecules and Polymers for Optoelectronics....Pages 13-28
Third-Order Nonlinear Susceptibility in Semiconducting Polymers....Pages 29-45
Recent Nonlinear Optical Studies of MNA and Conjugated Linear Chains....Pages 47-60
Quadratic Nonlinear Behaviour of Various Langmuir-Blodgett Molecules....Pages 61-78
Prediction of Third Order Nonlinear Optical Activity in Ordered Polymers....Pages 79-91
Effect of ?-Electron Delocalization on the Second-Order Polarizability of Disubstituted Hydrocarbons....Pages 93-99
Studies of Structure-Property Relations....Pages 101-104
Synthesis of New Nonlinear Optical Ladder Polymers....Pages 105-122
Nonlinear Optical Properties of Poly(P-Phenylene Vinylene) Thin Films....Pages 123-141
The Synthesis and Properties of Some Novel Diacetylene Monomers and Polymers....Pages 143-147
Design and Optical Properties of a Low Energy Gap Conjugated Polymer: Polydithieno(3,4-b:3’,4’-d)Thiophene....Pages 149-158
Synthetic Approaches to Stable and Efficient Polymeric Frequency Doubling Materials. Second-Order Nonlinear Optical Properties of Poled, Chromophore-Functionalized Glassy Polymers....Pages 159-172
Langmuir-Blodgett Films of Rigid Rod Polymers with Controlled Lateral Orientation....Pages 173-183
Polymers and Molecular Assemblies for Second-Order Nonlinear Optics....Pages 185-193
Spectral Properties and Second-Harmonic Generation of Hemicyanine Dye in Langmuir-Blodgett Films....Pages 195-218
Cubic Susceptibility of Organic Molecules in Solution....Pages 219-224
Measurement of the Non-Linear Refractive Index of Some Metallocenes by the Optical Power Limiter Technique....Pages 225-245
Polymerization and X-Ray Structure of New Symmetrical and Unsymmetrical Diacetylenes....Pages 247-251
Third-Order Nonlinear Guided-Wave Devices....Pages 253-256
Organic Integrated Optical Devices....Pages 257-276
Orientationally Ordered Nonlinear Optical Polymer Films....Pages 277-289
Overview-Nonlinear Optical Organics and Devices....Pages 291-297
Non Linear Optical Polymers for Active Optical Devices....Pages 299-325
Linear Electrooptic Coefficient of a Ferroelectric Polymer....Pages 327-336
Application of Third-Order Non-Linearities of Dyed PVA to Real-Time Holography....Pages 337-342
Ultrafast Third-Order Non-Linear Optical Processes in Polymeric Films....Pages 343-349
Picosecond Phase Conjugation in Yellow Polydiacetylene Solutions....Pages 351-363
Picosecond Studies of Optical Stark Effect in Polydiacetylenes....Pages 365-368
Ultrafast Phenomena in Conjugated Polymers....Pages 369-374
Device Applications and Materials Requirements....Pages 375-378
Polymer Synthesis for Nonlinear Optics and Characterization....Pages 379-381
Characterization Techniques....Pages 383-383
Back Matter....Pages 385-387
....Pages 389-396