Patent application number | Description | Published |
20100308813 | HIGH SENSITIVITY SOLID STATE MAGNETOMETER - A magnetometer for sensing a magnetic field may include a solid state electronic spin system, and a detector. The solid state electronic spin system may contain one or more electronic spins that are disposed within a solid state lattice, for example NV centers in diamond. The electronic spins may be configured to receive optical excitation radiation and to align with the magnetic field in response thereto. The electronic spins may be further induced to precess about the magnetic field to be sensed, in response to an external control such as an RF field, the frequency of the spin precession being linearly related to the magnetic field by the Zeeman shift of the electronic spin energy levels. The detector may be configured to detect output optical radiation from the electronic spin, so as to determine the Zeeman shift and thus the magnetic field. | 12-09-2010 |
20100315079 | ELECTRONIC SPIN BASED ENHANCEMENT OF MAGNETOMETER SENSITIVITY - A method is disclosed for increasing the sensitivity of a solid state electronic spin based magnetometer that makes use of individual electronic spins or ensembles of electronic spins in a solid-state lattice, for example NV centers in a diamond lattice. The electronic spins may be configured to undergo a Zeeman shift in energy level when photons of light are applied to the electronic spins followed by pulses of an RF field that is substantially transverse to the magnetic field being detected. The method may include coherently controlling the electronic spins by applying to the electronic spins a sequence of RF pulses that dynamically decouple the electronic spins from mutual spin-spin interactions and from interactions with the lattice. The sequence of RF pulses may be a Hahn spin-echo sequence, a Can Purcell Meiboom Gill sequence, or a MREV8 pulse sequence, by way of example. | 12-16-2010 |
20110222848 | Method and Apparatus for Fault-Tolerant Quantum Communication Based on Solid-State Photon Emitters - A novel method and apparatus for long distance quantum communication in realistic, lossy photonic channels is disclosed. The method uses single emitters of light as intermediate nodes in the channel. One electronic spin and one nuclear spin coupled via the contact hyperfine interaction in each emitter, provide quantum memory and enable active error purification. It is shown that the fixed, minimal physical resources associated with these two degrees of freedom suffice to correct arbitrary errors, making our protocol robust to all realistic sources of decoherence. The method is particularly well suited for implementation using recently-developed solid-state nano-photonic devices. | 09-15-2011 |
20120308181 | TWO-DIMENSIONAL COUPLED RESONATOR OPTICAL WAVEGUIDE ARRANGEMENTS AND SYSTEMS, DEVICES, AND METHODS THEREOF - Two-dimensional coupled resonator optical waveguide arrangements and systems, devices, and methods thereof. Networks of coupled resonator optical waveguides are arranged so as to exploit topological properties of these optical networks. Such arrangement affords topological protection against disorders or perturbations in the network that may hinder or block photon flow. As a result of a disorder, photons traversing along edge states of the array are rerouted based on the disorder or perturbation. Photon routing in the network is accordingly protected against disorder or defects. | 12-06-2012 |
20140358793 | Unforgeable Noise-Tolerant Quantum Tokens - A quantum ticket is defined by a unique serial number; and a set of qubits, each qubit encoding quantum information. The serial number and the set of qubits are distributed only among one or more trusted verifiers who require a tolerance fidelity F | 12-04-2014 |
Patent application number | Description | Published |
20100258784 | Method Of Efficient Coupling Of Light From Single-Photon Emitter To Guided Radiation Localized To Sub-Wavelength Dimensions On Conducting Nanowires - A cavity free, broadband approach for engineering photon emitter interactions via sub-wavelength confinement of optical fields near metallic nanostructures. When a single CdSe quantum dot (QD) is optically excited in close proximity to a silver nanowire (NW), emission from the QD couples directly to guided surface plasmons in the NW, causing the wire's ends to light up. Nonclassical photon correlations between the emission from the QD and the ends of the NW demonstrate that the latter stems from the generation of single, quantized plasmons. Results from a large number of devices show that the efficient coupling is accompanied by more than 2.5-fold enhancement of the QD spontaneous emission, in a good agreement with theoretical predictions. | 10-14-2010 |
20140025926 | Scalable Room Temperature Quantum Information Processor - A quantum information processor (QIP) may include a plurality of quantum registers, each quantum register containing at least one nuclear spin and at least one localized electronic spin. At least some of the quantum registers may be coherently coupled to each other by a dark spin chain that includes a series of optically unaddressable spins. Each quantum register may be optically addressable, so that quantum information can be initialized and read out optically from each register, and moved from one register to another through the dark spin chain, though an adiabatic sequential swap or through free-fermion state transfer. A scalable architecture for the QIP may include an array of super-plaquettes, each super-plaquette including a lattice of individually optically addressable plaquettes coupled to each other through dark spin chains, and separately controllable by confined microwave fields so as to permit parallel operations. | 01-23-2014 |
20140247094 | HIGH-PRECISION GHZ CLOCK GENERATION USING SPIN STATES IN DIAMOND - Techniques for obtaining a frequency standard using the crystal field splitting frequency of nitrogen vacancy center in diamond are disclosed. In certain exemplary embodiments, a microwave field is applied to the diamond and optically exciting the diamond under green light. The photoluminescent response of the diamond is measured by a photodetector. The intensity of the photoluminescent response can be used to determine the phase shift between the microwave and the crystal field splitting frequency. The microwave field frequency can be adjusted until the phase shift is below a predetermined threshold, and the microwave frequency can then be output for use as a standard. | 09-04-2014 |
20140367687 | SMALL-SCALE FABRICATION SYSTEMS AND METHODS - An etch mask is formed on a substrate. The substrate is positioned in an enclosure configured to shield an interior of the enclosure from electromagnetic fields exterior to the enclosure; and the substrate is etched in the enclosure, including removing a portion of the substrate to form a structure having at least a portion that is isolated and/or suspended over the substrate. | 12-18-2014 |
20150299894 | SYNTHETIC DIAMOND MATERIALS FOR QUANTUM AND OPTICAL APPLICATIONS AND METHODS OF MAKING THE SAME - A synthetic diamond material comprising one or more spin defects having a full width half maximum intrinsic inhomogeneous zero phonon line width of no more than 100 MHz. The method for obtain such a material involves a multi-stage annealing process. | 10-22-2015 |
Patent application number | Description | Published |
20130253550 | SELF-ASSEMBLING MAGNETIC ANASTOMOSIS DEVICE HAVING AN EXOSKELETON - The invention is an implantable magnetic anastomosis device having an exoskeleton that directs self-assembly. The design allows the device to be delivered in a linear configuration using a minimally-invasive technique, such as endoscopy or laparoscopy, whereupon the device self-assembles into, e.g., a polygon. A coupled set of polygons define a circumscribed tissue that can be perforated, or the tissue can be allowed to naturally necrose and perforate. The device can be used to create anastomoses in a variety of tissues, such as tissues found in the gastrointestinal, renal/urinary, and reproductive tracts. New procedures for using anastomoses, e.g., surgical bypass are also disclosed. | 09-26-2013 |
20140236200 | SELF-ASSEMBLING MAGNETIC ANASTOMOSIS DEVICE HAVING AN EXOSKELETON - The invention is an implantable magnetic anastomosis device having an exoskeleton that directs self-assembly. The design allows the device to be delivered in a linear configuration using a minimally-invasive technique, such as endoscopy or laparoscopy, whereupon the device self-assembles into, e.g., a polygon. A coupled set of polygons define a circumscribed tissue that can be perforated, or the tissue can be allowed to naturally necrose and perforate. The device can be used to create anastomoses in a variety of tissues, such as tissues found in the gastrointestinal, renal/urinary, and reproductive tracts. New procedures for using anastomoses, e.g., surgical bypass are also disclosed. | 08-21-2014 |
20150057688 | SELF-ASSEMBLING MAGNETIC ANASTOMOSIS DEVICE HAVING AN EXOSKELETON - The invention is an implantable magnetic anastomosis device having an exoskeleton that directs self-assembly. The design allows the device to be delivered in a linear configuration using a minimally-invasive technique, such as endoscopy or laparoscopy, whereupon the device self-assembles into, e.g., a polygon. A coupled set of polygons define a circumscribed tissue that can be perforated, or the tissue can be allowed to naturally necrose and perforate. The device can be used to create anastomoses in a variety of tissues, such as tissues found in the gastrointestinal, renal/urinary, and reproductive tracts. New procedures for using anastomoses, e.g., surgical bypass are also disclosed. | 02-26-2015 |
20160022266 | MAGNETIC ANASTOMOSIS DEVICES AND METHODS OF DELIVERY - The invention concerns delivering paired magnetic anastomosis devices to either side of tissues to be joined. The magnetic anastomosis devices are coupled to a guide element that facilitates delivery and manipulation of the devices when using minimally-invasive techniques such as endoscopy and laparoscopy. Elongated manipulators and guide tubes are also disclosed that improve a user's dexterity with the devices during placement. | 01-28-2016 |
Patent application number | Description | Published |
20080221597 | Methods and devices for intragastrointestinal fixation - A device for fixating a gastrointestinal device may include a band of material that may be wrapped around the gastrointestinal tract, for example, by wrapping the band around the outside of the stomach or wrapping the band in such a way that it is integrated into and/or with the stomach tissue. In this illustrative embodiment, the band restricts the stomach such that the stomach lumen is constricted and/or the stomach is restricted from expanding beyond what the band will allow. | 09-11-2008 |
20080221702 | Methods and devices for intragastrointestinal prostheses - An intragastric and/or intragastrointestinal device may include a prosthesis, which may reside within the gastrointestinal tract lumen. The device may include a restrictive element that constricts or restricts the gastrointestinal tract lumen, limiting the amount of food and/or fluid an individual consumes. | 09-11-2008 |
20100174140 | INTEGRATED ENDOSCOPE AND ACCESSORY TREATMENT DEVICE - An integrated endoscope and accessory treatment device is provided. The device employs a medical treatment device at its distal end that is combined with the endoscope as a complete system. The treatment device is controlled by integrated elements at the proximal end of the endoscope. The treatment devices may include tissue apposition devices, tissue cutting devices, forceps and others. | 07-08-2010 |
20120197273 | ENDOSCOPIC TISSUE APPOSITION DEVICE WITH MULTIPLE SUCTION PORTS - The present invention relates to an improved endoscopic tissue apposition device having multiple suction ports. The invention permits multiple folds of tissue to be captured in the suction ports with a single positioning of the device and attached together by a tissue securement mechanism such as a suture, staple or other form of tissue bonding. The improvement reduces the number of intubations required during an endoscopic procedure to suture tissue or join areas of tissue together. The suction ports may be arranged in a variety of configurations on the apposition device to best suit the desired resulting tissue orientation. The inventive tissue apposition device may also incorporate tissue abrasion means to activate the healing process on surfaces of tissue areas that are to be joined by operation of the device to promote a more secure attachment by permanent tissue bonding. | 08-02-2012 |
20130237998 | SUTURING DEVICES AND METHODS WITH ABSORBABLE OR NON-ABSORBABLE MATERIAL INSERTS - A method of promoting tissue adhesion to reinforce tissue apposition that may include collecting a first tissue portion, collecting a second tissue portion, placing one or more tissue securement devices through the first and second tissue portions, tightening the one or more tissue securement devices to approximate the first and second tissue portions, and placing a fixation agent between the first and second tissue portions. The method promotes tissue adhesion between one or more portions of tissue, wherein the tissue adhesion may reinforce a tissue apposition. | 09-12-2013 |