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Research in optical information technology in Europe hasbeen very active inrecent years. This volume recordsstate-of-the-art research conducted in some 22 laboratorieswho have worked together within EC ESPRIT Basic ResearchAction 3199 up to 1992. The topics cover:(1) Active optical logic and switching devices - embracingnew materials, nonlinear and electrooptic mechanisms as wellas advanced device fabrication. These devices cover therange from all-optical nonlinear interferometer structuresthrough hybrid optical-electronic modulators to integratedemitter-receiver structures.(2) The latest state of optical interconnect technology,embracing diffractive optics (binary and multi-level phasegratings), holographic space-variant elements andmicro-refractive optics.(3) Contributions on optical information processingarchitecture and demonstrator projects. The materials baseranges from silicon to II-VI materials with the realisationof pn-junction devices in ZnSe.The research reported here lays the basis for long-termprogress in devices for information processing.
Sommario
Nonlinearities in GaAs Systems.- Nonlinear optical properties of GaAs/(AlGa) As multiple quantum wells under quasistationary high laser excitation and transversal electric fields.- Electroabsorptive/-refractive effects in asymmetric step quantum wells and BRAQWET structures.- Electrooptical modulation in vertical multiple quantum well microresonators.- Criteria for the use of nonlinear GaAs etalons for threshold logic.- Interconnect Technologies.- Synthesis of diffractive optical elements using electromagnetic theory of gratings.- The design of quasi-periodic Fourier plane array generators.- Microlenses in PMMA with high relative aperture fabricated by proton irradiation combined with monomer diffusion.- Fabrication of microoptic components by thermal imprinting.- Invariant pattern recognition: Towards neural network classifiers.- Holographic interconnect components for optical processing systems.- Binary multilevel, and hybrid holographic optical array illuminators.- II-VI-Compound Nonlinearities.- Wide bandgap II-VI light emitting devices.- Optical nonlinearities of CdS for optical addressing.- Optical nonlinearities and switching from excitons in II-VI semiconductors.- Prediction of large optical nonlinearities in quantum well wires.- Nonlinear optical properties of II-VI semiconductor quantum dots.- Optical Computer Architectures.- Optical input and output functions for a cellular automaton on a silicon chip.- Demonstration of an optical pipeline adder.- Performance and hardware requirements of parallel addition algorithms for optical implementation using SEEDs.- 2-D Parallel optoelectronic interconnect using a highly light sensitive monolithic receiver array.- O-CLIP - A demonstrator all-optical processor.- Design of a S-SEED cellular logic imageprocessor.- Thermo-Optic Devices.- Thermo-optical logic gate array using SOS waveguide.- Optical switches and oscillators based on thermally induced optical nonlinearities in II-VI semiconductors.- Thermally induced optical bistability in GaAs/(AlGa)As multiple quantum wells for application as a temperature sensor.- Chances for nonlinear optical switching elements.- III-V Bistability and Devices.- Subnanosecond switching and recovery in a Fabry-Perot etalon based on bulk heavily doped n-GaAs.- Optical bistability in quantum well semiconductor devices.- All optical bistability in a type II heterostructure.- Surface emitting laser diodes and wavelength break selective photodetectors.- The double heterostructure optical thyristor in optical information processing applications.- An architecture for a general purpose optical computer adapted to PNPN devices.- Architectural and Logic Structures.- Towards distributed statistical processing - Aquarium: A query and reflection interaction using magic: Mathematical algorithms generating interdependent confidences.- Computer-aided design of digital opto-electronic systems with HADLOP.- Microwave photonics.- Si-Based Devices.- Avalanche photodiodes for optical bistability.- On the feasibility of avalanche devices for optical switching in silicon.- Sensitivity and switching contrast optimization in an optical signal processing waveguide structure.- A Passive crystal pixel interchanger.- Attendees.
