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| Number | Title | Issue Date |
| 8064065 | Ultrafast chirped optical waveform recorder using referenced heterodyning and a time microscope A new technique for capturing both the amplitude and phase of an optical waveform is presented. This technique can capture signals with many THz of bandwidths in a single shot (e.g., temporal resolution of about 44 fs), or be operated repetitively at a high rate. Th... | 11/22/2011 |
| 8014073 | Thin film coated optical hybrid An absorptive coating is in contact with an optical beam splitter such that a signal beam and a reference beam incident on the beam splitter from opposite sides are can be combined to produce two interference beams having a phase difference of about ... | 09/06/2011 |
| 8009283 | Dichroic beamsplitter for high energy laser diagnostics Wavefront control techniques are provided for the alignment and performance optimization of optical devices. A Shack-Hartmann wavefront sensor can be used to measure the wavefront distortion and a control system generates feedback error signal to optics inside the d... | 08/30/2011 |
| 7994460 | Method and system for controlling the position of a beam of light An method and system for laser beam tracking and pointing is based on a conventional position sensing detector (PSD) or quadrant cell but with the use of amplitude-modulated light. A combination of logarithmic automatic gain control, filtering, and synchronous detec... | 08/09/2011 |
| 7993266 | Early detection of contagious diseases This invention provides an electronic proximity apparatus and a surveillance method using such an apparatus for alerting individuals that are exposed to a contagious disease. When a person becomes symptomatic and is diagnosed as positive for a given contagious agent... | 08/09/2011 |
| 7991570 | Poynting-vector filter A determination is made of frequency components associated with a particular bearing or location resulting from sources emitting electromagnetic-wave energy for which a Poynting-Vector can be defined. The broadband frequency components associated with a specific dir... | 08/02/2011 |
| 7982960 | Co-package DQPSK demodulator by Michelson interferometer An interferometer includes a means for splitting, at a splitting location, an input light beam into a first beam and a second beam; and means for recombining, at a recombination location, the first beam and the second beam. The interferometer is designed such that t... | 07/19/2011 |
| 7970047 | UWB channel estimation using new generating TR transceivers The present invention presents a simple and novel channel estimation scheme for UWB communication systems. As disclosed herein, the present invention maximizes the extraction of information by incorporating a new generation of transmitted-reference (Tr) transceivers... | 06/28/2011 |
| 7951247 | Nano-laminate-based ignitors Sol-gel chemistry is used to prepare igniters comprising energetic multilayer structures coated with energetic booster materials. These igniters can be tailored to be stable to environmental aging, i.e., where the igniters are exposed to extremes of both hot and col... | 05/31/2011 |
| 7945077 | Hyperspectral microscope for in vivo imaging of microstructures and cells in tissues An optical hyperspectral/multimodal imaging method and apparatus is utilized to provide high signal sensitivity for implementation of various optical imaging approaches. Such a system utilizes long working distance microscope objectives so as to enable off-axis illu... | 05/17/2011 |
| 7942527 | Compact adaptive optic-optical coherence tomography system Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to redu... | 05/17/2011 |
| 7916762 | Phased laser array with tailored spectral and coherence properties Architectures for coherently combining an array of fiber-based lasers are provided. By matching their lengths to within a few integer multiples of a wavelength, the spatial and temporal properties of a single large laser are replicated, while extending the average o... | 03/29/2011 |
| 7907810 | Optical fiber having wave-guiding rings A waveguide includes a cladding region that has a refractive index that is substantially uniform and surrounds a wave-guiding region that has an average index that is close to the index of the cladding. The wave-guiding region also contains a thin ring or series of ... | 03/15/2011 |
| 7879285 | Process for fabrication of cermets Cermet comprising ceramic and metal components and a molten metal infiltration method and process for fabrication thereof. The light weight cermets having improved porosity, strength, durability, toughness, elasticity fabricated from presintered ceramic powder infil... | 02/01/2011 |
| 7876010 | Passive magnetic bearing configurations A journal bearing provides vertical and radial stability to a rotor of a passive magnetic bearing system when the rotor is not rotating and when it is rotating. In the passive magnetic bearing system, the rotor has a vertical axis of rotation. Without the journal be... | 01/25/2011 |
| 7864430 | Modified Michelson delay line interferometer In an optical etalon with a fixed FSR determined by the cavity length, the time delay is adjusted by an etalon surface coating. The proper cavity length is chosen to achieve a desired FSR, and the coating is independently selected to obtain a desired time delay.... | 01/04/2011 |
| 7834513 | Electrostatic generator/motor having rotors of varying thickness and a central stator electrically connected together into two groups A sub-module consists of a set of two outer sets of stationary fan-blade-shaped sectors. These outer sectors include conductive material and are maintained at ground potential in several examples. Located midway between them is a set of stationary sector plates with... | 11/16/2010 |
| 7803737 | Solid materials for removing arsenic and method thereof Solid materials have been developed to remove arsenic compounds from aqueous media. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the arsenic leaving a pur... | 09/28/2010 |
| 7791781 | Rapidly reconfigurable all-optical universal logic gate A new reconfigurable cascadable all-optical on-chip device is presented. The gate operates by combining the Vernier effect with a novel effect, the gain-index lever, to help shift the dominant lasing mode from a mode where the laser light is output at one facet to a... | 09/07/2010 |
| 7751695 | High-speed massively parallel scanning A new technique for recording a series of images of a high-speed event (such as, but not limited to: ballistics, explosives, laser induced changes in materials, etc.) is presented. Such technique(s) makes use of a lenslet array to take image picture elements (pixels... | 07/06/2010 |
| 7738111 | Ultrafast chirped optical waveform recording using referenced heterodyning and a time microscope A new technique for capturing both the amplitude and phase of an optical waveform is presented. This technique can capture signals with many THz of bandwidths in a single shot (e.g., temporal resolution of about 44 fs), or be operated repetitively at a high rate. Th... | 06/15/2010 |
| 7732773 | Gamma-ray tracking method for pet systems Gamma-ray tracking methods for use with granular, position sensitive detectors identify the sequence of the interactions taking place in the detector and, hence, the position of the first interaction. The improved position resolution in finding the first interaction... | 06/08/2010 |
| 7723643 | Laser peening for reducing hydrogen embrittlement A laser peening process for the densification of metal surfaces and sub-layers and for changing surface chemical activities provides retardation of the up-take and penetration of atoms and molecules, particularly Hydrogen, which improves the lifetime of such laser p... | 05/25/2010 |
| 7692838 | Nanolaminate deformable mirrors A deformable mirror formed out of two layers of a nanolaminate foil attached to a stiff substrate is introduced. Deformation is provided by an electrostatic force between two of the layers. The internal stiffness of the structure allows for high-spatial-frequency sh... | 04/06/2010 |
| 7665844 | High-resolution adaptive optics scanning laser ophthalmoscope with multiple deformable mirrors An adaptive optics scanning laser ophthalmoscopes is introduced to produce non-invasive views of the human retina. The use of dual deformable mirrors improved the dynamic range for correction of the wavefront aberrations compared with the use of the MEMS mirror alon... | 02/23/2010 |
| 7592602 | Dual-sided coded-aperture imager In a vehicle, a single detector plane simultaneously measures radiation coming through two coded-aperture masks, one on either side of the detector. To determine which side of the vehicle a source is, the two shadow masks are inverses of each other, i.e., one is a m... | 09/22/2009 |
| 7573641 | Free-space optical hybrid An exemplary optical hybrid includes a 50/50 un-polarized beam splitter, a folding prism, a beam shifter, a spacer and a phase shifter such that from an input S-beam (signal) and an L-beam (reference), four outputs, S+L, S−L, S+jL, S−jL, are produced. The phase ... | 08/11/2009 |
| 7564241 | Isotopic imaging via nuclear resonance fluorescence with laser-based Thomson radiation The present invention utilizes novel laser-based, high-brightness, high-spatial-resolution, pencil-beam sources of spectrally pure hard x-ray and gamma-ray radiation to induce resonant scattering in specific nuclei, i.e., nuclear resonance fluorescence. By monitorin... | 07/21/2009 |
| 7550735 | GaTe semiconductor for radiation detection GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materia... | 06/23/2009 |
| 7548576 | Self organization of wireless sensor networks using ultra-wideband radios A novel UWB communications method and system that provides self-organization for wireless sensor networks is introduced. The self-organization is in terms of scalability, power conservation, channel estimation, and node synchronization in wireless sensor networks. T... | 06/16/2009 |
| 7535029 | Material system for tailorable white light emission and method for making thereof A method of processing a composite material to tailor white light emission of the resulting composite during excitation. The composite material is irradiated with a predetermined power and for a predetermined time period to reduce the size of a plurality of nanocrys... | 05/19/2009 |
| 7522343 | Michelson interferometer based delay line interferometers An interferometer includes a means for splitting, at a splitting location, an input light beam into a first beam and a second beam; and means for recombining, at a recombination location, the first beam and the second beam. The interferometer is designed such that t... | 04/21/2009 |
| 7518780 | Nanolaminate deformable mirrors A deformable mirror formed out of two layers of a nanolaminate foil attached to a stiff substrate is introduced. Deformation is provided by an electrostatic force between two of the layers. The internal stiffness of the structure allows for high-spatial-frequency sh... | 04/14/2009 |
| 7492117 | Electromagnetic variable degrees of freedom actuator systems and methods The present invention provides a variable reluctance actuator system and method that can be adapted for simultaneous rotation and translation of a moving element by applying a normal-direction magnetic flux on the moving element. In a beneficial example arrangement,... | 02/17/2009 |
| 7446314 | Superconducting gamma and fast-neutron spectrometers with high energy resolution Superconducting Gamma-ray and fast-neutron spectrometers with very high energy resolution operated at very low temperatures are provided. The sensor consists of a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir, and determines the ... | 11/04/2008 |
| 7440858 | Poynting-vector based method for determining the bearing and location of electromagnetic sources A method and apparatus is utilized to determine the bearing and/or location of sources, such as, alternating current (A.C.) generators and loads, power lines, transformers and/or radio-frequency (RF) transmitters, emitting electromagnetic-wave energy for which a Poy... | 10/21/2008 |
| 7422766 | Method of fabrication of high power density solid oxide fuel cells A method for producing ultra-high power density solid oxide fuel cells (SOFCs). The method involves the formation of a multilayer structure cells wherein a buffer layer of doped-ceria is deposited intermediate a zirconia electrolyte and a cobalt iron based electrode... | 09/09/2008 |
| 7393810 | Solid materials for removing arsenic and method thereof Solid materials have been developed to remove arsenic compounds from aqueous media. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the arsenic leaving a pur... | 07/01/2008 |
| 7383053 | Position estimation of transceivers in communication networks This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless receivers. Such an invention can be applied in sensor network application... | 06/03/2008 |
| 7378042 | Nonlinear optical crystal optimized for Ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4 (BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(B03)3O where Re1... | 05/27/2008 |
