| Electro-Optic Modulation and Mirrorless Lasing Using Unique Organic Materials and Single-Crystal Films |
05 DEC 2003 |
7 pages |
| Authors:
Mrinal Thakur; AUBURN UNIV AL DEPT OF MECHANICAL ENGINEERING
|
 | The accomplishments in this project include the following: (1) preparation of single-crystal films of specific organic nonlinear optical materials, including molecular salts such as DAST; (2) measurement of electro- optic coefficients; (3) demonstration of electro-optic modulation with a modulation depth of 80% at a field of 4 V/micrometers for a single-pass device (using a 3-micrometer thick film); (4) demonstration of high-speed modulation with a speed up to 1.5 GHz; (5) ... |
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| Discovery and Utilization of Nanoscale and Mesoscale Enabling Materials and Processes for Optoelectronics and Electronic Interconnects |
DEC 2003 |
93 pages |
| Authors:
Sanford Asher; John T. Yates Jr; Craig Wilcox; Gilbert Walker; Rob Coalson; PITTSBURGH UNIV PA DEPT OF CHEMISTRY
|
| This report describes the development of enabling mesoscale materials and development of new instrumentation and methodologies for nanoscale material characterization. The work involved the following eight separate efforts: 1. Use of Colloidal Array Photonic Materials for Photochemically and Photothermally Controllable Diffraction Devices; 2. Development of Methods to Fabricate Nanoscale and Mesoscale Enabling Materials such as Magnetically Anisotropic Spherical Particles; 3. Development of Methods to Fabricate Particles -with Chemically Anisotropic Surfaces; ... |
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| New Techniques for Heterogeneous Integration for Optical Sensing Systems |
DEC 2003 |
8 pages |
| Authors:
Richard M. Osgood Jr; COLUMBIA UNIV NEW YORK MICROELECTRONICS SCIENCE LAB
|
| During the two-year duration of this program, we accomplished or made significant progress in three objectives for specific integrated optical systems. The general technology focus was to develop practical methods for reducing the physical dimensions of optical circuits through manipulation of the device geometry and refractive-index profile and develop several new integrated optical devices on LiNbO3 devices. Our research on LiNbO3 has yielded a new low voltage E/O scanner, techniques ... |
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| Single-Chip Integrated Electro-Optic Polymer Photonic RF Phase Shifter Array |
DEC 2003 |
14 pages |
| Authors:
Jeehoon Han; Byoung-Joon Seo; SeongKu Kim; Hua Zhang; Harold R. Fetterman; CALIFORNIA UNIV REGENTS LOS ANGELES
|
| This paper demonstrates a four-element integrated photonic radio-frequency (RF) phase shifter array in a single chip with an advanced configuration. These devices are integrated using electrooptic polymer materials and involve several novel technologies. Measurements of this configuration showed that our four outputs were independent and had highly linear RF phases over 360 degrees with negligible RF power fluctuation at the modulation frequency of 20 GHz. This significant improvement is capable ... |
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| High-Speed Chaos in an Optical Feedback System with Flexible Timescales |
24 NOV 2003 |
8 pages |
| Authors:
Jonathan N. Blakely; Lucas Illing; Daniel J. Gauthier; DUKE UNIV DURHAM NC DEPT OF PHYSICS
|
| We describe a new optoelectronic device with timedelayed feedback that uses a Mach-Zehnder interferometer as passive nonlinearity and a semiconductor laser as a current-to-optical frequency converter. Band-limited feedback allows tuning of the characteristic time scales of both the periodic and high dimensional chaotic oscillations that can be generated with the device. Our implementation of the device produces oscillations in the frequency range of tens to hundreds of megahertz. We develop ... |
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| Electromagnetic Modelling of Quantum-Well Infrared Photodetectors |
04 NOV 2003 |
11 pages |
| Authors:
Theodor Tamir; POLYTECHNIC UNIV BROOKLYN NY
|
| Our work has focused on two principal aspects: (a) developing a rigorous modal transmission-line (MTL) approach for modeling quantum-well infrared photodetectors (QWIPs) and other optoelectronic devices. and (b) applying this approach to evaluate the performance of actual QWIPs. The geometry of the QWlPs may include any number of different dielectric and metallic layers, which may generally be periodic with &arbitrary profiles, The theoretical part (a) was carried out for both ... |
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| Joint Services Optics Program Reasearch in the Optical Sciences |
21 OCT 2003 |
47 pages |
| Authors:
James C. Wyant; ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER
|
| This report describes research on eight different projects ranging from fundamental quantum optics to optical engineering. Topics discussed include me following: Collisional dark states and matter wave transparency, high power diffraction limited surface emitting flared lasers, qubits and quantum gates with laser trapped atoms, radiatively perfect quantum dot, 3D semiconductor nanocavities, excitonic and biexcitonic nonlinear optical processes in semiconductor quantum wells, blue lasers and near field techniques for ultra high ... |
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| Moving Reflector Type Micro Optical Switch for High-Power Transfer in a MEMS-Based Safety and Arming System |
14 OCT 2003 |
|
| Authors:
Kevin R. Cochran; Lawrence Fan; Don L. Voe; NAVAL SURFACE WARFARE CENTER INDIAN HEAD DIV MD
|
 | Development of a moving reflector type micro optical switch fabricated by deep reactive ion etching (DRIE) in silicon on insulator (SOI) substrates is presented. The device discussed is a key component in a MEMS-based safety and arming (S&A) system for use in underwater weapons. In this switch, an etched vertical sidewall reflector is electrostatically actuated in and out of the optical path between input and output optical fibers. Fabrication is ... |
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| Determination of the Width of the Carrier Recombination Zone in Organic Light-Emitting Diodes |
18 SEP 2003 |
5 pages |
| Authors:
J. Kalinowski; L. C. Palilis; W. H. Kim; Z. H. Kafafi; GDANSK TECHNICAL UNIV (POLAND)
|
| Bilayer organic light-emitting diodes based on tris-(8-hydroxyquinolinato) aluminum III have been fabricated where the thickness of the light-emitting layer was varied between 10 and 80 nm while maintaining a constant total thickness of the organic layers. The electroluminescence quantum efficiency of the devices was measured as a function of the emitter thickness, and used to determine the width of the carrier recombination zone at different electric fields. The width of ... |
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| Spatial and Quasi-Optical Power Combining a Multidisciplinary University Research Initiative |
12 SEP 2003 |
107 pages |
| Authors:
L. W. Pearson; CLEMSON UNIV SC DEPT OF ELECTRICAL ANDCOMPUTER ENGINEERING
|
| This MURI program comprised an integrated effort for computer aided design (CAD) modeling of quasi optical structures and three related experimental efforts. The CAD activity involved the electromagnetic modeling of radiation from planar structures, state-variable modeling of microwave circuits, and thermal modeling of microwave circuits. The latter two have been combined into a unified CAD system that deals with microwave circuits, including electro-thermal effects. Electromagnetic structures can be coupled to ... |
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| Electro Optical Properties of Copolymer Blends |
01 SEP 2003 |
47 pages |
| Authors:
Frank E. Karasz; MASSACHUSETTS UNIV AMHERST DEPT OF POLYMER SCIENCE AND ENGINEERING
|
| A number of investigations concerning the synthesis, characterization and properties of electro-optical macromolecules has been completed. A wide range of structures mostly based on a conjugated main chain and focused on providing high photo-luminescent and electroluminescent quantum yields, were produced and fabricated into opto-electronic devices. Parallel investigations have continued the long established study of polymer blends by various physical means. Amongst others, a dielectric relaxation study has compared the properties ... |
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| Exploitation of Omnidirectional Reflectivity |
SEP 2003 |
27 pages |
| Authors:
Tri Van; Dennis Nyquist; Leo Kempel; Gang Bao; MISSION RESEARCH CORP SANTA BARBARA CA
|
| In this final report, we have summarized the progress made during the period of September 1. 2002-September 30, 2003. We derive the integral equations for (electric fields propagating in a fiber of arbitrary cross section and arbitrary refractive index. Mathematical analysis of conventional optical fibers is rich and widely available in literature, for example 3, 9, 11 and references therein. It helps the advancement of optical fiber industry in understanding ... |
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| Bistable Reflective Etalon (BRET) |
SEP 2003 |
25 pages |
| Authors:
Zane Shellenbarger; Joseph H. Abeles; SARNOFF CORP PRINCETON NJ
|
| This project designed, fabricated, and characterized normal-incidence etalon structures at 1550 nm wavelength operation for application, as bistable elements, to photonic analog-to-digital conversion. The semiconductor devices consist of planar multi-quantum well saturable absorbers situated within an etalon defined by epitaxially grown reflective distributed Bragg reflector mirrors. Two iterations were completed and characterized in a transmissive configuration of greatest interest to Air Force Research Laboratories. Nonlinear transmission was observed. Bistability could ... |
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| Trends in Nanotechnology Conference (TNT 2003) Held in Salamanca, Spain, 15-19 Sep 2003. Posters Abstracts |
SEP 2003 |
555 pages |
| Authors:
Uzi Landman; GEORGIA INST OF TECH ATLANTA SCHOOL OFPHYSICS
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| In response to the growing awareness of the importance of nanotechnology, "Trends in Nanotechnology" (TNT) has become key meeting in the nanotechnology field since it brings fresh ideas on organization, first level speakers, and an environment suitable to keep discussions, ideas exchange and enhance scientific and personal relations among participants. TNT2003 was held in large part due to the overwhelming success of earlier Nanotechnology Conferences, TNT2000, TNT2001 and TNT2002. The ... |
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| Microwave Photonics in Dual-Use Military Systems - A Personal Perspective |
20 AUG 2003 |
|
| Authors:
Afshin S. Daryoush; DREXEL UNIV PHILADELPHIA PA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Microwave photonics has come of age and there are a number of military applications that could directly benefit from. Optically controlled phased array antenna is one of the most widely pursued applications. The fiber optic links are employed for distribution of a variety of communication, intelligence, tracking, radar signals. There are a number of issues that dictate the type of architecture that is employed for effective and reliable control of ... |
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| Optoelectronic Components and Integrated Circuits Including Up and Down Conversion Technique and Hybrid Integration Technology |
20 AUG 2003 |
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| Authors:
D. Decoster; S. Dupont; V. Magnin; UNIVERSITE DES SCIENCES ET TECHNOLOGIELILLE (FRANCE)
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| Microwave optical links can be considered as basic bricks for some emerging system applications such as optically supplied microwave antennas. Emitters, optical switching matrices, high speed photodetectors and specific components for up or down conversion, are generic devices or functions for microwave optical links. We will describe main ways to generate microwave or millimetre wave signals through an optical fibre: direct and external modulation, optical control of microwave oscillators, generation ... |
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| Optoelectronic Components and Integration Devices: From Concepts to Applications |
20 AUG 2003 |
|
| Authors:
D. Jaeger; A. Stoehr; GERHARD MERCATOR UNIV DUISBURG (GERMANY)
|
| The field of optics-microwave interactions can generally be defined as the study of high-speed photonic devices operating at microwave, millimeter wave or even THz frequencies and their use in microwave or photonic systems. In this multidisciplinary field at the interface between microwave techniques, ultrafast electronics and photonic technologies, typical investigations include, for example, high-speed and microwave signal generation, processing and conversion as well as the distribution and transmission of microwave ... |
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| Wireless and Optics - A Survey and Overview of Broad Band Fiber-Fed Radio Systems |
20 AUG 2003 |
|
| Authors:
J. J. Lee; RAYTHEON ELECTRONIC SYSTEMS EL SEGUNDO CA
|
| What is "Fiber Radio?" Fiber Radio is a fiber-fed radio system using fiber optic links or networks to distribute video, voice, and data for mobile and wireless applications. Antenna remoting is an example where MMW subcarriers at 18, 24, 38', or 60 GHz with information are transmitted from central office to base stations. This emerging technology has been demonstrated for applications such as community communications and pic%cell wireless systems for ... |
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| RF Photonics for Beamforming and Array Applications |
20 AUG 2003 |
|
| Authors:
J. J. Lee; RAYTHEON ELECTRONIC SYSTEMS EL SEGUNDO CA
|
| This lecture focuses on the applications of RF photonics for array antennas in signal distribution, beamforming, beam control, and antenna remoting. Examples are given to discuss the requirements, benefits, and design approaches of photonics for phased array antennas. The first demonstration of using photonics for a dual band array was conducted in 1990. Later a wide band conformal array controlled by photonics was built and tested. This example talks about ... |
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| Optical Architectures for Signal Processing - Part A |
20 AUG 2003 |
|
| Authors:
B. Cabon; INSTITUT MEDITERRANEEN D'ECOLOGIE ET DEPALEOECOLOGIE GRENOBLE (FRANCE)
|
| The progress achieved in performing optoelectronic components makes feasible the generation of microwave functions using all-optical devices. in the first part of this presentation, the principle of microwave filtering using optical interferometers is described for both optical coherent and non-coherent regimes. Optical components are addressed in terms of microwave-optical S parameters. The experimental realization of filters using fibers or integrated optics is explained. In the second part, the use of ... |
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| Optical Processing of Microwave Signals - Part B |
20 AUG 2003 |
|
| Authors:
Jean Chazelas; THALES RESEARCH AND TECHNOLOGY ORSAY (FRANCE)
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| The availability of optoelectronic components operating up to 20 GHz brings attractive perspectives for optical processing of microwave signals. Furtherinore optically carried microwave signals can experience large time delays, especially in fiber based systems, providing time-frequency products in the range between 100 and 1000. Owing to their inherent parallel processing capabilities, optoelectronic architectures are well suited for the implementation in radar and electronic warfare systems of basic functions such as ... |
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| Opto-Microwave Signal Processing: Up and Down Conversion Techniques |
20 AUG 2003 |
|
| Authors:
Tibor Berceli; Mark Csoernyei; BUDAPEST UNIV OF TECHNOLOGY AND ECONOMICS (HUNGARY)
|
| This application note introduces the concepts of opto-microwave signal processing used in several communication systems today. Emphasis is placed on optical-microwave up and down conversion techniques. |
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| Novel Microwave Photonic Techniques in the Future Military Systems |
20 AUG 2003 |
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| Authors:
Afshin S. Daryoush; DREXEL UNIV PHILADELPHIA PA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper reviews a number of novel applications of microwave photonic techniques in future military systems. One category is light interactions with microwave devices and circuits, which has contributed to the beginning of microwave photonics. The performance of HBT is the most attractive over FET and HEMT devices, due to its I-V dependence on high bandwidth and optical sensitivity. Moreover, different techniques of optical ADC are reviewed and among them ... |
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| Optical Beamforming Networks for Radars & Electronic Warfare Applications |
20 AUG 2003 |
|
| Authors:
Jean Chazelas; Daniel Dolfi; Sylvie Tonda-Goldstein; Jean-Pierre Huignard; THALES RESEARCH AND TECHNOLOGY ORSAY (FRANCE)
|
| Future microwave systems will be generally based on active electronic antennas. This evolution is determined by requirements of improved performances of these equipments in terms of reliability, jamming resistance, flexibility for the beamformning in the transmit and in the receive mode. Such antennas will be use in a large number of applications such as radar, communication and electronic warfare. In order to satisfy this multiftuictional aspects, it will be necessary ... |
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| Liquid Crystalline Symposium |
14 AUG 2003 |
3 pages |
| Authors:
Patrick T. Mather; CONNECTICUT UNIV STORRS LIQUID CRYSTALLINE POLYMER RESEARCH CENTER
|
| Research in the physics, chemistry, and technology of liquid crystals (LCs) is alive and well, as demonstrated by the vitality of this recent LC symposium and the accompanying volume. While symposia focused on liquid crystal (LC) materials scienc have a strong tradition of excellence at MRS meetings, organizers and attendees of the Fall 2001 MRS Symposium CC agree that this was an especially excellent conference. Talks spanned a very diverse ... |
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| International Symposium Advanced Display Technologies (12th): Basic Studies of Problems in Information Display (FLOWERS'2003) |
AUG 2003 |
243 pages |
| Authors:
RUSSIAN ACADEMY OF SCIENCES MOSCOW (RUSSIA) LEBEDEV INST
|
| The Final Proceedings for 12th International Symposium Advanced Display Technologies, 25 August 2003 - 27 August 2003. This is a multidisciplinary conference centered on development of display capabilities. Topics to be presented include Field Emission Displays, Liquid Crystal Displays, Organic Luminescent Displays, W = V + V = Vacuum Fluorescent Displays + Volume Vision, Electroluminescent & Electrochromic Displays & Ergonomics,Ray-Tubes, Selected Developments (PDP, Projection Devices, Civilian and Military Applications etc.) ... |
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| Fast Photoconductivity in Self-Assembled Columnar Liquid Crystalline Photorefractive Materials |
30 JUL 2003 |
32 pages |
| Authors:
Kenneth D. Singer; Virgil Percec; CASE WESTERN RESERVE UNIV CLEVELAND OH
|
| We have elaborated a novel strategy for the self-assembly and co- assembly of functional supramolecular columns that self-organize in a hexagonal columnar liquid crystalline phase forming high carrier mobility organic semiconductor materials for applications in photorefractive and photovoltaic devices. Among our accomplishments are, (1) synthesis and elucidation of the structure of self-organizing dendron materials into a helical superstructure supporting an axial transport channel suggesting that structure and function can be ... |
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| Lifetime and Longevity of an Intense, Photoconductivity - Switched Stacked Blumlein Modulator for Ultra - Wideband HPM Applications |
28 JUL 2003 |
58 pages |
| Authors:
Carl B. Collins; Farzin Davanloo; TEXAS UNIV AT DALLAS RICHARDSON CENTERFOR QUANTUM ELECTRONICS
|
| In this work, experiments with the stacked Blumlein prototype pulsers were conducted under different conditions of operation at power levels bypassing 100 MW. Special attention was placed on broadening of the current channels in the avalanche photoconductive switch in order to improve lifetime. The mechanical and semiconductor properties of amorphic diamond were employed to improve the lifetime by coating the switch cathode or anode areas or both. Issues concerning the ... |
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| Controlled Redox and Electrical Properties in Polyheterocycles |
21 JUL 2003 |
20 pages |
| Authors:
John R. Reynolds; FLORIDA UNIV GAINESVILLE DEPT OF CHEMISTRY
|
| The Reynolds research group at the University of Florida has developed an extensive program for the development and application of variable gap conjugated polymers which are luminescent and semiconducting, can be doped to high levels of conductivity, and can be redox switched between charge neutral, oxidized (p-type), and reductive (n-type) states. A soluble and processable dibutyl derivative of poly(3,4-propylenedioxy-thiophene) has been synthesized directly in its neutral form by Grignard metathesis ... |
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| Proceedings of Photon Processing in Microelectronics and Photonics II held in San Jose, California on January 27-30, 2003 |
18 JUL 2003 |
705 pages |
| Authors:
Alberto Pique; Koji Sugioka; Peter R. Herman; Jim Fieret; SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS BELLINGHAM WA
|
| Laser processing of materials, once largely curiosity driven, is now an established technology for micromachining, thin film synthesis, device packaging, rapid prototyping, and even nanoscale synthesis and processing of materials. The main driving force behind these developments is the seemingly limitless adaptability of lasers in providing unique material processing solutions, manufacturing of otherwise unattainable devices and structures, and the implementation of cost- effective solutions to complex manufacturing processes. The use ... |
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| Multifunctional Materials and Structures |
01 JUL 2003 |
|
| Authors:
S. Yarlagadda; DELAWARE UNIV NEWARK CENTER FOR COMPOSITE MATERIALS
|
| Multifunctional composites enable transformation of the Navy: Combine best of both worlds. Passive properties: Strength - Stiffness - Toughness - Fire-hardness - Blast resistant - corrosion resistant - LO. Active properties: Sensors/Actuators - Networking and Communications - Active LO and Signature - Self-Healing - Health Monitoring - Electronics/CPUs. Manufacturing technologies to integrate multifunctionality are essential. |
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| A Tutorial on the Use of GPIB and Spreadsheet Software Macros for Data Acquisition in the Evaluation of Photovoltaic Device Performance |
JUL 2003 |
21 pages |
| Authors:
Scott K. Johnson; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
|
| We present a lightweight and straightforward way to automate data acquisition (DAQ). This approach uses a general purpose interface board (GPIB) and software with GPIB-compatible devices (i.e., multimeters, electronic loads, etc) and Microsoft Excel to capture data. (Devices with a GPIB hardware interface are equivalent to the HPIB and IEEE-488 hardware interfaces.) One can centrally control several devices automatically for the purpose of data acquisition and/or experiment control. This method ... |
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| Symposium L: GaN and Related Alloys |
09 JUN 2003 |
53 pages |
| Authors:
Ed T. Yu; Yasuhiko Arakawa; Angela Rizzi; James S. Speck; MATERIALS RESEARCH SOCIETY WARRENDALE PA
|
| In Symposium L on GaN and Related Alloys, recent results on growth and characterization of III-nitride semiconductors and their application in optoelectronic and electronic devices were reported. Several advances were reported in nitride-based technology for visible and UV-light emitters. Researchers at the University of South Carolina presented results on LEDs operating at 250 nm, while NTT researchers presented 350-nm UV LEDs with maximum external efficiency of 1.4%; phosphor-coated red and ... |
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| An Experimental Study of High Heat Flux Removal Using Micro-Droplet Spray Cooling |
JUN 2003 |
61 pages |
| Authors:
Matthew A. Cryer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MECHANICAL ENGINEERING
|
| Recent studies have shown that thermophotovoltaic (TPV) technology is a promising source of high power density generation. Enhanced TPV systems can theoretically provide power densities of up to 100 W/cm2. The inherent ineffiencies in the system dictate that up to 90% of that energy is not converted to electrical power, and must be removed as waste heat to ensure that the components are maintained at a reasonable operating temperature. The ... |
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| Ruggedized Full-Color Flexible OLED Display |
JUN 2003 |
70 pages |
| Authors:
Michael Hack; Stephen R. Forrest; Mark Thompson; Tom Jackson; Robert Praino; UNIVERSAL DISPLAY CORP EWING NJ
|
| The objective of this program was to demonstrate a flexible, rugged, bright and efficient phosphorescent OLED technology with a low cost manufacturing path. The team comprised Universal Display Corporation, Princeton University, the University of Southern California, Penn State University, L3 Displays and Vitex Systems, and was led by Universal Display Corporation (PI: michael Hack). The program focused on developing the technology to enable reliable low power consumption flexible (FOLED(Trademark)) displays ... |
|
| The Effects of Isothermal Deformation and Annealing on the Microstructure of Nickel-Aluminum-Bronze Propeller Material |
JUN 2003 |
63 pages |
| Authors:
William A. Nabach; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis is a study of annealing and deformation characteristics of cast Nickel-Aluminum Bronze (NAB) in relation to Friction Stir Processing (FSP) of this material. Cast NAB is widely utilized by the U.S. Navy as material used in the production of propellers for surface vessel and submarines. FSP is a novel method of deformation processing that is conducted by use of a rotating tool that is forced onto the surface ... |
|
| WOCSDICE'03 The 27th Workshop on Compound Semiconductor Devices and Integrated Circuits Held in Europe May 26 - 28, 2003 Forigen, Switzerland |
28 May 2003 |
135 pages |
| Authors:
Werner Baechtold; EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH (SWITZERLAND)
|
| Topics covered -- Material growth and characterization, including Nitrides. High speed semiconductor devices - opto-electronic devices; Device technology, characterization, modeling, simulation small/large signal and noise properties; High speed and microwave integrated circuits; Technology, design and characterization; Optoelectronic devices and their integration; Nano devices/quantum structures and devices; Novel device concepts; Terahertz technology noise - nonlinear properties - reliability. |
|
| Request for Funds for the Purchase of a Broadly Tunable Ti:Sapphire Laser for Research in High-Density Optical Memory |
14 MAY 2003 |
5 pages |
| Authors:
John T. Fourkas; BOSTON COLL CHESTNUT HILL MA
|
| Funds amounting to $155,782 were used for the purchase of a Coherent 900-F tunable Ti:sapphire laser system with a Verdi 10 pump laser in conjunction with matching funds from Boston College. The total cost of the laser system was $191,500. The system was successfully installed during the project period and is currently being used to study how the efficiency of data storage and retrieval depends on the wavelength of light ... |
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| Ultra-Low Latency Multiprotocol Optical Routers for the Next Generation Internet |
MAY 2003 |
114 pages |
| Authors:
S. J. Yoo; CALIFORNIA UNIV DAVIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Research conducted under this program demonstrated the first all- optical label switching router, the first all-optical label swapping with negative penalty, the first edge-router for optical-label switching, the first cascaded operation of optical- label switching routers, and the first field trial of optical label-switching routers. The router exhibited the following performance: subnanosecond switching speed; contention resolution that achieved a packet loss rate below 0.5% at a load of 0.6; arbitration ... |
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| PHOCI: Photonic Communications Imager |
25 APR 2003 |
18 pages |
| Authors:
Dale E. Martin; Darryl S. Dieckman; Philip A. Wilsey; CLIFTON LABS INC CINCINNATI OH
|
| Report developed under SBIR contract for topic AO1-58. PHOCI is an optical imaging system that is suitable for both image capture and reception of optical communications data. The envisioned system, called PHOCI includes a novel image/data capture chip that imbeds a high-speed optical data communications receiver technology into the image capture array of a digital video camera system. In addition to the development of a new image/data capture chip, the ... |
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| Multi-Layer Worm Disk with Parallel Recording and Read-Out for High Capacity Storage |
APR 2003 |
81 pages |
| Authors:
D. Dvornikov; E. Walker; P. Rentzepis; S. Esener; CALL RECALL INC SAN DIEGO CA
|
| Technology has been developed to enable recording and reading of optical disks having many layers. The approach selected relies on recording bits in a volume by using single beam two-photon recording. A volumetric bit is written in the volume of a molded photochromic dispersed organic polymer only at spatial locations where the recording beam has sufficient photon energy. Data recording is based on two-photon absorption, by which one molecule is ... |
|
| First-Principles Theory of Chalcopyrites in Support of Their Development for Nonlinear Optical Applications |
APR 2003 |
18 pages |
| Authors:
Walter R. Lambrecht; CASE WESTERN RESERVE UNIV CLEVELAND OHDEPT OF PHYSICS
|
| Computational studies were carried out of the electronic structure and optical properties of chalcopyrite and defect chalcopyrite semiconductors. The second order nonlinear optical coefficients and frequency dependent response functions were calculated for the I-III-VI_2 chalcopyrites with I=Ag,Cu, III=Ga, In and VI=S, Se, Te. The superior properties of the tellurides were established. The band structure and effective masses of CdGeAs_2 were calculated including the effects of spin-orbit coupling. The band structures ... |
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| Photonic Band Gap Devices for Commercial Applications |
26 MAR 2003 |
|
| Authors:
Gregory P. Behrmann; Ahmed Sharkawy; Thomas Dillon; Dennis Prather; David Pustai; EM PHOTONICS INC NEWARK DE
|
| The objective of this STTR program was to define and develop a unified manufacturing process for Photonic Band Gap (PBG) devices that combine design, simulation, fabrication, and testing. To this end the authors set out to combine the fabrication processes at the University of Delaware with the design and modeling tools of EM Photonics, Inc. to implement and demonstrate applications defined by AFRL researchers. Thus, by investigating devices that serve ... |
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| Single-Mode Wavelength Division Demultiplexer for Bit-Parallel Fiber Optic Networks |
14 MAR 2003 |
54 pages |
| Authors:
Jie Qiao; Bipin Bihari; Ray T. Chen; OMEGA OPTICS INC AUSTIN TX
|
| In summary, this SBIR program was highly successful, and a few modules were completely packaged for delivery to the JPL labs for further testing. We contacted the JPL team at a later stage. However, it appears that JPL team was not interested in taking delivery of these modules. However, a set of 32-channel WDM/WDDM modules were successfully used to demonstrate a high throughput bit-serial data transfers between two computers for ... |
|
| A Magnetic Resonance Force Microscope |
MAR 2003 |
26 pages |
| Authors:
John Marohn; Abbas Emami; George Svenconis; CORNELL UNIV ITHACA NY
|
| Key technologies required to bring the instrument to market with sensitivity to a few thousand protons were demonstrated including a novel cryogenic coarse approach mechanism and the first-ever batch fabrication of attoNewton-sensitive "ultrafloppy" cantilevers with individual nanomagnets on the tips. A prototype digital-signal-processor (DSP) based cantilever controller suitable for use in an MRFM instrument was developed. It is a significant accomplishment to be able to employ a DSP in a ... |
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| VCSEL and Smart Pixel Research for VLSI Photonics |
25 FEB 2003 |
14 pages |
| Authors:
K. Y. Cheng; R. D. Dupuis; M. Feng; S. R. Forrest; N. Holonyak Jr; ILLINOIS UNIV AT URBANA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The goal of this research program is to develop smart pixels and related technology for VLSI photonic systems. The native oxide and tunneling contact technology developed at the University of Illinois is the enabling technology for high performance vertical cavity surface emitting lasers (VCSELs) which will be used in future photonic systems and specifically in the smart pixels that are the focus of this research program. The smart pixel 8 ... |
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| Layered 3-D RF Optoelectronic Microstructures with Precision Kinematic Interconnect |
20 FEB 2003 |
51 pages |
| Authors:
Timothy Skunes; Richard Voyles; MINNESOTA UNIV MINNEAPOLIS
|
| "Report developed under STTR contract" for topic "ARMY02-T005". We have investigated the feasibility of using self-aligning kinematic optoelectronic mounts for active 3-D RF/optoelectronic microstructures. The mechanical interconnect features allow rapid and very precise assembly of multiple silicon layers into rigid structures with self-assembling electrical and thermal pathways. The major thrust of this Phase I investigation was to study these interconnects to determine their mechanical registration precision, heat removal capacity, and ... |
|
| Optoelectronics Research Center |
19 FEB 2003 |
633 pages |
| Authors:
Steven R. Brueck; Stephen D. Hersee; Ravinder K. Jain; Sanjay Krishna; Luke F. Lester; NEW MEXICO UNIV ALBUQUERQUE CENTER FORHIGH TECHNOLOGY MATERIALS
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| The AFOSR Optoelectronics Research Center has maintained a broadly based program at the forefront of optoelectronics with efforts in linear and nonlinear materials, device processing, device design, and in device integration. Examples of materials and structures are quantum dots, superlattices, digital alloys, and strained-layer semiconductors, and new nonlinear materials. Processing developments relate to smaller dimensions and improved techniques for the selective deposition, modification and removal of materials. Improved devices, based ... |
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| Ultraviolet-spectrum Light-emitting Diodes with Omnidirectional Reflectors for High Extraction Efficiency |
10 FEB 2003 |
4 pages |
| Authors:
E. F. Schubert; BOSTON UNIV MA
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| This report covers the period August 1st to August 31st 2002 while I was working for Boston University (BU). On September 1st I transferred to Rensselaer Polytechnic Institute (RPI). It is my understanding that this report is required for the transfer of the contract from BU to RPI. The reflective properties of a triple-layer omni-directional reflector have been investigated. The reflector has a two-fold purpose namely it serves as ohmic ... |
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| Defects in SiC Single Crystals and Their Influence on Device Performance |
04 FEB 2003 |
40 pages |
| Authors:
Michael Dudley; STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF MATERIALS SCIENCE AND ENGINEERING
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| This extensive program of research aims to apply the techniques of Synchrotron White Beam X-ray Topography (SWBXT), Nomarski Optical Microscopy. Scanning Electron Microscopy. Transmission Electron Microscopy (TEM). and I-V characteristic Probing to the detailed analysis of defect structures in SiC single Crystals of various polytypes, and to determine how these defect structures can influence the performance of various kinds of device manufactures therefrom. Results obtained so far indicate that devices ... |
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Electrooptical and Optoelectronic Devices
