Patent application number | Description | Published |
20100278478 | MULTI-CHANNEL OPTICAL COUPLER - A solid core, multi-channel optical coupler comprising an elongate mixer body having an input end, an output end and sidewalls forming a length of the mixer body, where the input end is configured for coupling to a plurality of input channels providing an optical signal for transmission through the mixer body, and a plurality of output tapers coupled to the output end. Each of the output tapers has a reception area adjacent the output end of the mixer body for receiving a portion of the optical signal transmitted through the mixer body. Furthermore, the reception area of each output taper is variable to vary the intensity of the optical signal received by the output taper. | 11-04-2010 |
20100296820 | FREE SPACE OPTICAL INTERCONNECT - A system such as a server ( | 11-25-2010 |
20110013913 | IMAGE-ROTATION PRISMS AND OPTICAL INTERCONNECTS EMPLOYING THE SAME - Embodiments of the present invention relate to a family of image-rotation prisms. Each image-rotation prism has the property that as an image-rotation prism is rotated, an image passing through the image-rotation prism rotates at twice the angular rate of the image-rotation prism. Embodiments of the present invention include optical systems that can be used for board-to-board communications and employ the image-rotation prisms to compensate for arbitrary axial rotations and misalignment of optical signals and can be used to direct optical signals output from transmitters on one board to particular detectors of a detector arrangement located on an adjacent board. | 01-20-2011 |
20110026129 | PRISM BEAMSPLITTERS - Embodiments of the present invention are directed to single prism beamsplitters and compound beamsplitters formed from combining one or more of the single prism beamsplitters. In one embodiment, the beamsplitters can be configured to produce one or more split beams of light that can emerge at angles other than 90° to one another. The prisms of the beamsplitter embodiments are configured so that light propagating through prisms encounter one or more intermediate planar surfaces at various angles with respect to the path of the light. A certain number of the intermediate planar surfaces can be angled so that the light transmitted along a particular path undergoes total internal reflection within the prism. A number of other intermediate planar surfaces are angled so that the light transmitted along a particular path does not undergo total internal reflection. | 02-03-2011 |
20110058812 | Optically Enabled Broadcast Bus - Embodiments of the present invention are directed to optical multiprocessing buses. In one embodiment, an optical broadcast bus includes a repeater, a fan-in bus optically coupled to a number of nodes and the repeater, and a fan-out bus optically coupled to the nodes and the repeater. The fan-in bus is configured to receive optical signals from each node and transmit the optical signals to the repeater, which regenerates the optical signals. The fan-out bus is configured to receive the regenerated optical signals output from the repeater and distribute the regenerated optical signals to the nodes. The repeater can also serve as an arbiter by granting one node at a time access to the fan-in bus. | 03-10-2011 |
20110058817 | ARRAYS, SYSTEM AND METHOD FOR BI-DIRECTIONAL DATA TRANSMISSION - A system for bi-directional data transmission includes a first array coupled to a first subsystem and a second array coupled to a second subsystem. The first array includes a first plurality of transmitters that produce first optical signals that are transmitted through free space, and a first plurality of receivers. The second array includes a second plurality of transmitters that produce second optical signals that are transmitted through free space to the first plurality of receivers, and a second plurality of receivers that is configured to receive the first optical signals. An image-forming apparatus is operatively positioned between the first and second arrays and is configured to concurrently form an image of the first plurality of transmitters on the second plurality of receivers and an image of the second plurality of transmitters on the first plurality of receivers. | 03-10-2011 |
20110188033 | MOLECULE DETECTION USING RAMAN LIGHT DETECTION - An apparatus for detecting at least one molecule using Raman light detection includes a substrate for supporting a sample containing the at least one molecule, a laser source for emitting a laser beam to cause Raman light emission from the at least one molecule, a modulating element for modulating a spatial relationship between the laser beam and the substrate at an identified frequency to cause the Raman light to be emitted from the at least one molecule at the identified frequency, at least one detector for detecting the Raman light emitted from the at least one molecule, and a post-signal processing unit configured to process the detected Raman light emission at the identified frequency to detect the at least one molecule. | 08-04-2011 |
20110188034 | SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING VIBRATING NANORODS - A surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a plurality of nanorods configured to vibrate. The apparatus includes the nanorods having tips at free ends opposite an end attached to a substrate. The tips are configured to adsorb an analyte and to vibrate at a vibration frequency. The apparatus further includes a vibration source configured to vibrate the free ends of the nanorods at the vibration frequency in a back-and-forth motion. Vibration of the nanorods is configured to facilitate detection of a Raman scattering signal emitted by the analyte adsorbed on the nanorod tips. The system further includes a synchronous detector configured to receive the Raman signal and to be gated cooperatively with the vibration of the nanorods. The method includes inducing a vibration of the nanorods, illuminating the vibrating tips to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
20110188035 | VIBRATING TIP SURFACE ENHANCED RAMAN SPECTROSCOPY - A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
20110206320 | Optical Beam Couplers And Splitters - Beam couplers and splitters are disclosed herein. An embodiment of a beam coupler and splitter includes a first waveguide including a bevel and a bend, and a second waveguide including a bevel complementarily shaped to the first waveguide bevel. The first waveguide bevel is configured to totally internally reflect at least some light incident thereon. The second waveguide is coupled to the first waveguide such that i) the second waveguide bevel is adjacent to at least a portion of the first waveguide bevel, and ii) a predetermined coupling ratio is achieved. | 08-25-2011 |
20110228266 | SUBSTRATE FOR SURFACE ENHANCED RAMAN SCATTERING (SERS) - A substrate for Surface Enhanced Raman Scattering (SERS). The substrate comprises at least one nanostructure protruding from a surface of the substrate and a SERS active metal over the at least one nanostructure, wherein the SERS active metal substantially covers the at least one nanostructure and the SERS active metal creates a textured layer on the at least one nanostructure. | 09-22-2011 |
20120013903 | NANOWIRE LIGHT CONCENTRATORS FOR PERFORMING RAMAN SPECTROSCOPY - Embodiments of the present invention are directed to systems for performing surface-enhanced Raman spectroscopy. In one embodiment, a system ( | 01-19-2012 |
20120026493 | GRATING FOR MULTIPLE DISCRETE WAVELENGTHS OF RAMAN SCATTERING - Systems and methods employ a layer having a pattern that provides multiple discrete guided mode resonances for respective couplings of separated wavelengths into the layer. Further, a structure including features shaped to enhance Raman scattering to produce light of the resonant wavelengths can be employed with the patterned layer. | 02-02-2012 |
20120033914 | ANGLED COUPLING FOR OPTICAL FIBERS - An angled coupling for optical fibers can comprise a body ( | 02-09-2012 |
20120105805 | IMAGE VIEWING SYSTEMS WITH CURVED SCREENS - This disclosure is directed to image viewing systems. In one aspect, an image viewing system includes a curved screen with a concave viewing surface, and an array of projectors. Each projector is positioned to project a different image onto the viewing surface from a different angle and the viewing surface is to reflect each image to a different viewing area with a horizontal scattering angle that defines the size of each viewing area. A viewer located in at least one viewing area is to receive a reflected image that enters one or both of the viewer's eyes when the viewer looks at the viewing surface. | 05-03-2012 |
20120105806 | IMAGE VIEWING SYSTEMS WITH AN INTEGRATED SCREEN LENS - This disclosure is directed to rear projection and front projection image viewing systems. In one aspect, an image viewing system includes a screen composed of a lens and a reflective diffuser with a microstructured surface. The system also includes an array of projectors. Each projector is to project an image onto the screen with a particular angle of incidence such that each image is to pass through the lens and is to be reflected back though the lens by the reflective diffuser with a horizontal scattering angle determined by the microstructured surface. The lens is to direct each reflected image to a particular viewing area so that a viewer located in at least one viewing area receives a reflected image that enters one or both of the viewer's eyes when the viewer looks at the screen. | 05-03-2012 |
20120107948 | LUMINESCENT CHEMICAL SENSOR INTEGRATED WITH AT LEAST ONE MOLECULAR TRAP - A luminescent chemical sensor integrated with at least one molecular trap. The luminescent chemical sensor includes at least one molecular trap and at least one metallic-nanofinger device integrated with at least one molecular trap. The molecular trap includes a plurality of electrodes that trap at least one analyte molecule. The metallic-nanofinger device includes a substrate, and a plurality of nanofingers coupled with the substrate. A nanofinger of the plurality includes a flexible column, and a metallic cap coupled to an apex of the flexible column. At least the nanofinger and a second nanofinger of the plurality of nanofingers are to self-arrange into a close-packed configuration with the analyte molecule. A method for using, and a chemical-analysis apparatus including the luminescent chemical sensor are also provided. | 05-03-2012 |
20120113419 | NANOWIRE-BASED SYSTEMS FOR PERFORMING RAMAN SPECTROSCOPY - Embodiments of the present invention are directed to nanowire-based systems for performing surface-enhanced Raman spectroscopy. In one embodiment, a system comprises a substrate ( | 05-10-2012 |
20120113420 | ELECTRICALLY DRIVEN DEVICES FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - An electrically driven device ( | 05-10-2012 |
20120119315 | SENSING DEVICES - A sensing device ( | 05-17-2012 |
20120154791 | SURFACE ENHANCED RAMAN SPECTROSCOPY SYSTEM - A surface enhanced Raman spectroscopy system includes a surface enhanced Raman spectroscopy substrate and a laser source configured to emit light within a spectrum of wavelengths toward a predetermined species on or near the surface enhanced Raman spectroscopy substrate. The system further includes a set of filters positioned to be in optical communication with light scattered after the laser light interacts with the predetermined species. Each of the filters in the set is respectively configured to pass scattered light within a different predetermined narrow band of wavelengths. The system also includes a plurality of photodetectors, where each photodetector is positioned adjacent to a respective one of the filters in the set and is configured to output a signal if the scattered light passes through the respective one of the filters. The set of filters is targeted for detection of characteristic peaks of the predetermined species. | 06-21-2012 |
20120188539 | NANOROD SURFACE ENHANCED RAMAN SPECTROSCOPY APPARATUS, SYSTEM AND METHOD - A nanorod surface enhanced Raman spectroscopy (SERS) apparatus, system and method of SERS using nanorods that are activated with a key. The nanorod SERS apparatus includes a plurality of nanorods, an activator to move the nanorods from an inactive to an active configuration and the key to trigger the activator. The nanorod SERS system further includes a Raman signal detector and an illumination source. The method of SERS using nanorods includes activating a plurality of nanorods with the key, illuminating the activated plurality of nanorods, and detecting a Raman scattering signal when the nanorods are in the active configuration. | 07-26-2012 |
20120263415 | OPTICAL INTERCONNECT - An optical interconnect includes an optical fiber which terminates in a interconnect body and a micro lens which collimates light exiting the optical fiber to produce a collimated beam. A first personality module is configured operate on the collimated beam; the first personality module being aligned with and detachably connected to the interconnect body. The optical interconnect is configured to be inserted into a socket in an optical backplane, the first personality module being further configured to operate on light passing from the optical backplane into the optical interconnect. | 10-18-2012 |
20120281729 | ENVIRONMENT SENSITIVE DEVICES - An environment sensitive device is disclosed. The device includes a substrate, a three-dimensional structure established on the substrate, a first coating established on a first portion of the three-dimensional structure, and a second coating established on a second portion of the three-dimensional structure. The first and second coatings contain different materials that are configured to respond differently when exposed to a predetermined external stimulus. | 11-08-2012 |
20130003185 | OPTICAL STAR COUPLER - An optical device ( | 01-03-2013 |
20130057663 | IMAGE VIEWING SYSTEMS WITH DYNAMICALLY RECONFIGURABLE SCREENS FOR THREE-DIMENSIONAL VIEWING - Various embodiments of the present invention are directed to image viewing systems. In one aspect, an image viewing system includes a projection system ( | 03-07-2013 |
20130196449 | ELECTRICALLY DRIVEN DEVICES FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - An electrically driven device for surface enhanced Raman spectroscopy includes a substrate, a Raman signal-amplifying structure positioned on the substrate, and an analyte receptor attached to a structure chosen from i) the Raman signal-amplifying structure, or ii) the substrate near the Raman signal-amplifying structure, or iii) combinations of i and ii. The analyte receptor has a selective binding affinity for an analyte. Conductive elements are positioned relative to one another and to the analyte receptor such that the conductive elements together produce an electric field in the vicinity of the analyte receptor when a voltage bias is applied between the conductive elements. | 08-01-2013 |
20130222557 | Image display using a virtual projector array - Image viewing systems are disclosed. In one aspect, an image viewing system includes a screen ( | 08-29-2013 |
20130287337 | OPTICAL BEAM COUPLERS AND SPLITTERS - Beam couplers and splitters are disclosed herein. An example of a beam coupler and splitter includes a first waveguide having a first waveguide bevel and a bend, the first waveguide bevel to totally internally reflect at least some light incident thereon. A second waveguide includes a second waveguide bevel complementarily shaped to the first waveguide bevel, the second waveguide being coupled to the first waveguide such that i) the first waveguide bevel is offset from the second waveguide bevel so that a first portion of the first waveguide bevel is in direct contact with a first portion of the second waveguide bevel, a second portion of the first waveguide bevel is exposed, and a second portion of the second waveguide bevel is exposed, and ii) a predetermined coupling ratio is achieved. | 10-31-2013 |
20140022222 | DIFFUSER WITH A DYNAMICALLY TUNABLE SCATTERING ANGLE - A dynamically tunable diffuser having a dynamically tunable scattering angle is provided. The dynamically tunable diffuser has a first diffuser having a first series of microstructures and at least one second diffuser having a second series of microstructures that is rotated relative to the first series of microstructures to provide an angle offset between the first diffuser and the at least one second diffuser. The first diffuser and the at least one second diffuser are integrated together in a display screen to provide good quality, continuous 3D images to viewers regardless of their position and height. | 01-23-2014 |
20140022511 | FRONT-PROJECTION GLASSES-FREE, CONTINUOUS 3D DISPLAY - A light field display for generating glasses-free, continuous 3D images is provided. The light field display has a horizontal retro-reflective display screen with a microstructured surface having an array of narrowly-spaced, ninety-degree microstructures, and a vertical diffuser having an array of narrowly-spaced, randomly-patterned microstructures. The vertical diffuser is joined to the horizontal retro-reflective display screen to form a light field display for use in front-projection display systems. | 01-23-2014 |
20140029002 | ADJUSTABLE INTERSURFACE SPACING FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - A sensor for surface enhanced Raman spectroscopy (SERS) sensor includes surfaces and an actuator to adjust an intersurface spacing between the surfaces to contain an analyte and allow the analyte to be released from containment. | 01-30-2014 |
20140036262 | ELECTRONIC AND PLASMONIC ENHANCEMENT FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - An apparatus for surface enhanced Raman spectroscopy includes a substrate, a nanostructure and a plasmonic material. The nanostructure and the plasmonic material are integrated together to provide electronic and plasmonic enhancement to a Raman signal produced by electromagnetic radiation scattering from an analyte. | 02-06-2014 |
20140111856 | GLASSES-FREE 3D DISPLAY FOR MULTIPLE VIEWERS USING IMPRINTED SUB-WAVELENGTH GRATINGS - A light field display for providing continuous 3D images to viewers at multiple views is provided. The light field display includes a pixel layer having a plurality of pixel layer elements, a resonant subwavelength lens layer having a plurality of resonant subwavelength lenses and a circuit board connected to the pixel layer and the resonant subwavelength lens layer. Each resonant subwavelength lens in the resonant subwavelength lens layer is integrated with an element in the pixel layer. The element may be either a pixel or a subpixel, such that each image view may be provided per pixel or subpixel in the pixel layer. | 04-24-2014 |
20140132736 | IMAGE CAPTURE USING A VIRTUAL CAMERA ARRAY - Image capturing systems are disclosed. In one aspect, an image capturing system includes an image capture device and at least two light-deflecting devices associated with the image capture device. The image capture device is capable of capturing different perspective views of objects in a scene. The at least two light-deflecting devices are positioned between the image capture device and the scene. The at least two light-deflecting devices are capable of being oriented in at least two different orientations to re-direct the path of light rays from the objects in the scene to the associated image capture device, enabling the capture of successive perspective views of the scene. | 05-15-2014 |
20140211199 | MULTIPLE CONCURRENT SPECTRAL ANALYSES - According to an example, apparatuses for performing multiple concurrent spectral analyses on a sample under test include an optical system to concurrently direct a plurality of light beams onto analytes at multiple locations on the sample under test, in which the plurality of light beams cause light in either or both of a Raman spectra and a non-Raman spectra to be emitted from the analytes at the multiple locations of the sample under test. The apparatuses also include a detector to concurrently acquire a plurality of spectral measurements of the light emitted from the analytes at the multiple locations of the sample under test. Example methods of performing spectral analysis include use of the apparatuses. | 07-31-2014 |
20140211206 | APPARATUS FOR COLLECTING MATERIAL TO BE SPECTRALLY ANALYZED - According to an example, an apparatus for collecting a material to be spectrally analyzed includes a body having a first end and a second end, in which the body is elongated along a first axis from the first end to the second end. The body also includes a hole having an opening formed in an external surface of the body at a location between the first end and the second end and extending at least partially through the body at an angle with respect to the first axis. The body further includes a plurality of surface-enhanced spectroscopy (SES) elements positioned inside the body. | 07-31-2014 |
20140268128 | Self-Exciting Surface Enhanced Raman Spectroscopy - Self-exciting surface enhanced Raman spectroscopy (SERS) employs an integral optical excitation source to provide an excitation signal to provide self-excitation of a SERS structure. The SERS structure includes a plurality of nanofingers having SERS-enhancing nanoparticles disposed adjacent to the nanofingers. | 09-18-2014 |