Photonics & Sensors

A high power density photo-electronic and photo-voltaic material comprising a bio-inorganic nanophotoelectronic material with a photosynthetic reaction center protein encapsulated inside a multi-wall carbon nanotube or nanotube array. The array can be on an electrode. The photosynthetic reaction center protein can be immobilized on the electrode surface and the protein molecules can have the same orientation.

A system of imaging and non-imaging sensors are used in combination with a graphical user interface (GUI) system on a vehicle to detect items of interest. In particular, a GUI has been developed that seamlessly integrates high magnification, Narrow Field of View (NFOV) imaging sensors and Wide Field of View (WFOV) imaging sensors. The GUI is capable of displaying both WFOV and NFOV images, gimbal controls, and allow NFOV sensor to be pointed to any location within the wide field of view efficiently by a single touch of a touch screen display.

A multi-sensor signal fusion apparatus is provided for automatic modulation classification of weak unknown signals in non-cooperative communication environment with a more accurate description of the signal. The multi-sensor non-cooperative demodulation device combines a group of sensors, a signal fusion sensor, a means for signal demodulation, and a means for automatic modulation classification.

An SCR module tester facilitates rapid testing of SCR modules by a series of tests that are tailored to detect faults without applying full power to the modules. The SCR tester includes a quick clamp connector that is able to securely and easily clamp SCR modules for both the F/A-18 A/D GCU and F/A-18-E/F GCU facilitating the rapid testing of SCR modules.

An apparatus and method are provided for creating an indirect image of an object. The apparatus includes a light source and an imaging system. Light emitted from the light source is reflected by a first non-specular surface toward the object. Light reflected by the object is further reflected by a second non-specular surface toward the imaging system. The imaging system is configured to create the indirect image from the reflected light.

A compact solid state laser that generates multiple wavelengths and multiple beams that are parallel, i.e., bore-sighted relative to each other, is disclosed. Each of the multiple laser beams can be at a different wavelength, pulse energy, pulse length, repetition rate and average power. Each of the laser beams can be turned on or off independently. The laser is comprised of an optically segmented gain section, common laser resonator with common surface segmented cavity mirrors, optically segmented pump laser, and different intra-cavity elements in each laser segment.

Quantum dots are modified with varying amounts of (a) a redox-active moiety effective to perform charge transfer quenching, and (b) a fluorescent dye effective to perform fluorescence resonance energy transfer (FRET), so that the modified quantum dots have a plurality of photophysical properties. The FRET and charge transfer pathways operate independently, providing for two channels of control for varying luminescence of quantum dots having the same innate properties.

A transparent polycrystalline ceramic having scattering and absorption loss less than 0.2/cm over a region comprising more than 95% of the originally densified shape and a process for fabricating the same by hot pressing. The ceramic can be any suitable ceramic such as yttria (Y2O3) or scandia (Sc2O3) and can have a doping level of from 0 to 20% and a grain size of greater than 30 _m, although the grains can also be smaller than 30 _m.

A microelectromechanical system (MEMS) device for sensing a magnetic field comprising: a base; a cantilever attached to the base structure at a first end and movable at a second end, the second end oscillating at a predetermined frequency upon application of a current; a magnetic sensor attached to the movable second end; at least one flux concentrator mounted on the base adapted to transfer magnetic flux to the sensor; whereby when the current is applied, the oscillation of the cantilever causes the sensor to oscillate between the lines of flux transferred from the at least one flux concentra

The invention as disclosed is a system for real time detection of tsunami waves. A tsunami is considered a _shallow water wave_, having a large wavelength compared to the ocean depth. A tsunami can have wavelengths ranging from 100 to 500 km, and amplitudes up to 60 cm (i.e., a pressure signal of up to 1 psi).