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THIS PROPOSAL DESCRIBES AN APA OPTICS PROGRAM TO DEVELOP A HIGH SPEED (100GHZ) GAAS WAVEGUIDE BASED MACH ZEHNDER MODULATOR. OUR APPROACH CENTERS ON THE USE OF A BURIED ELECTRODE CONFIGURATION TO ACHIEVE VELOCITY MATCHING OF THE RF AND OPTICAL SIGNALS. THIS WE FEEL WILL RESULT IN A DEVICE WITH A BROADBAND RESPONSE FROM DC TO 100GHZ. WE WILL WORK IN CONJUNCTION WITH THE ULTRFAST SCIENCE LAB AT THE U ...

THERE IS A NEED FOR A HIGH SPEED, HIGH RESOLUTION CORRELATION SYSTEM FOR TARGET TRACKING, WHICH IS COST EFFECTIVE, AND FIELDABLE FOR USE ON THE FORWARD AREA AIR DEFENSE (FAAD) SYSTEM. SUCH A TRACKER SHALL BE CAPABLE OF OPERATING AT HIGHER THAN NORMAL TV RATES, TO PROVIDE THE NECESSARY DYNAMIC TRACKING ACCURACY AND ACCOMODATE TARGET SIZE AND ROTATIONAL CHANGES. THE PROGRAM EFFORT IS TO DEVELOP A CU ...

THE NEED FOR SENSITIVE, SELECTIVE,STABLE, AND LOW COST GAS SENSORS WHICH CAN BE USED FOR IN SITE MONITORING OF AN ENVIRONMENT HAS NEVER BEEN ADEQUATELY FULFILLED. TO MEET THE TECHNICAL CHALLENGE INVOLVED IN THE DEVELOPMENT OF GAS SENSORS, APA OPTICS WILL UTILIZE INTEGRATED OPTICS TECHNOLOGY TO IMPLEMENT INFRARED ABSORPTION SPECTROSCOPY ON A MICROSCOPIC SCALE. THE PRIMARY TECHNOLOGY ISSUE CONCERNIN ...

A PROJECT IS PROPOSED TO DEVELOP TECHNIQUES FOR STABILIZATION OF PROTEINS BY COVALENT CROSSLINKING. WE PLAN TO USE MONOCLONAL ANTIBODY SPECIFIC FOR T-2 TOXIN AS THE PRIMARY PROTEIN TO USE FOR DEVELOPING STABILIZATION TECHNOLOGY. USING LIGAND STABILIZATION TO DECREASE INACTIVATION DURING THE CROSSLINKING, WE PROPOSE TO EVALUATE THE EFFECTIVENESS OF INTRAMOLECULAR CROSSLINKING BETWEEN BOTH HYDROPHIL ...

MUCH ATTENTION HAS BEEN FOCUSED UPON THE POSSIBLE USE OF TOXIC BIOLOGICAL AGENTS IN BOTH SOUTHEAST ASIA AND AFGANISTAN. SUCH INCIDENTS INDICATE A NEED FOR IMPROVING THE UNITED STATES CAPABILITY TO ACCURATELY DETECT THESE TOXINS AT LEVELS WELL BELOW THOSE LETHAL TO HUMANS.ONE OF THE MOST COMMON GROUPS OF NATURALLY OCCURING TOXINS IS THE TRICHOTHECENE (E.G., T-2 TOXIN) WHICH ARE HIGHLY TOXIC SECONDA ...

A DROPLET GENERATOR CAPABLE OF PRODUCING DROPLETS IN THE SIZE RANGE OF 40 TO 400 MICROMETERS WILL BE DEVELOPED. THIS DROPLET GENERATOR OPERATES ON THE PRINCIPLE OF LIQUID JET BREAK-UP BY MECHANICAL VIBRATION. WITH THIS TYPE OF GENERATOR, THE OPERATING PARAMETERS CAN UNIQUELY DEFINE THE DROPLET SIZE. THE GENERATOR IS MADE ADAPTABLE TO HIGH VISCOSITY LIQUIDS BY SELECTION OF VIBRATION AMPLITUDES AND ...