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| Number | Title | Issue Date |
| 7947955 | Apparatus and method for detecting terahertz wave A terahertz wave detecting apparatus includes a semiconductor chip 12, a two-dimensional graphene 14, a conductive source electrode 15, and a drain electrode 16 and a gate electrode 17. The two-dimensional graphene 14 is con... | 05/24/2011 |
| 7935930 | Coupling energy from a two dimensional array of nano-resonanting structures A device (100) includes a substrate (2) having a surface (4). A plurality of nano-resonate structures (8) is disposed in rows (12) and columns (14) on the surface (4). A generally two-dimensional charged particle beam... | 05/03/2011 |
| 7919755 | Dendrimer based electro-optic sensor A high efficiency electro-optic dendrimer based technology for nanophotonic integrated circuit devices is presented. In particular, an electro-optic waveguide dendrimer for electro-optic sensor applications is implemented. A terahertz system for detecting and imagin... | 04/05/2011 |
| 7915587 | Methods of rapid phase modulation of THz radiation for high speed THz imaging, spectroscopy, and communications devices and systems Rapid, voltage controlled phase modulation of continuous wave THz radiation is demonstrated. By transmitting an infrared laser beam through a phase modulator, the phase of the THz radiation which is generated by the photomixing of two infrared beams can be directly ... | 03/29/2011 |
| 7915588 | Arrangement and method for detecting an object which is arranged on a body, in particular for carrying out a security check The invention relates to an arrangement (10) and a method for detecting an object (18) arranged on a body (14). The arrangement comprises a vibration device (12), which sets the body (14) in a mechanical vibration of predetermined ... | 03/29/2011 |
| 7906764 | Measuring apparatus using terahertz wave A measuring apparatus measures a time-domain waveform of THz wave pulse by time-domain spectroscopy. The apparatus includes a detector for detecting THz wave pulse containing a signal component at frequency fs, a small signal detector for detecting the signal compon... | 03/15/2011 |
| 7897924 | Beam scanning imaging method and apparatus An imaging apparatus uses focusing and collecting optics in combination with steering optics for efficient imaging of a target using an extended terahertz electro-magnetic range challenged by weak sources and low sensitivity of detection. By proper location of optic... | 03/01/2011 |
| 7888646 | System and method for detecting contraband A technique is provided for detecting whether an object of interest is being carried by a subject. The technique includes coarsely scanning the subject with an electromagnetic radiation, measuring reflective intensity of radiation reflected from the subject, and det... | 02/15/2011 |
| 7858940 | Information acquisition apparatus and information aquisition method using terahertz wave for acquiring information on object An information acquisition apparatus includes a pulse generator 9, a detector 10, a first delay unit 15, a second delay unit 16 and a computation unit. The pulse generator 9 is excited by a first laser beam to generate a terahertz ... | 12/28/2010 |
| 7851761 | Multi-band terahertz receiver and imaging device Multi-band polarized receiver-emitter THz domain visualization device that includes a group of elemental receiver units made from a resonant system sensitive to frequency and polarization, a micro-bead solid-state voltage amplifier in the gate of a differential FET ... | 12/14/2010 |
| 7847254 | Photoconductive device A photoconductive device (2) comprises a plurality of photoconductive layers (6, 8, 10, 12), each photoconductive layer comprising photoconductive material (4) and a respective plurality of electrodes (16, 18), wherein the photoconductive... | 12/07/2010 |
| 7804070 | Scanning device of multi-point simultaneous acquisition through diffuse optical tomography A scanning device processes a multi-point simultaneous acquisition. The acquisition is processed for an infra-red diffuse optical tomography. An intensity modulated light is used with a frequency domain analysis theorem to obtain a reconstructed scanning image. The ... | 09/28/2010 |
| 7804069 | Imaging apparatus and method A method for imaging a sample, the method comprising the steps of: (a) irradiating the surface of a sample with a source of coherent substantially continuous radiation with a frequency in the range 25 GHz to 100 THz; (b) detecting said radiation reflected from or tr... | 09/28/2010 |
| 7800068 | Conveyor system A conveyor system comprises means for conveying a sample at a controlled velocity between functions of a production line and through an interrogation zone, means for generating at least one beam of electromagnetic radiation of a terahertz frequency and directing the... | 09/21/2010 |
| 7795587 | Scanning imaging device A Terahertz scanning imaging device for imaging objects where the object is larger than the object to imager distance. The imager comprises scanning elements, sensors, and an image processor. The scanning elements are used to direct radiation to the sensors. Multipl... | 09/14/2010 |
| 7795588 | Inspection apparatus The invention is to provide an inspection apparatus causing interactions of plural times between an object and an electromagnetic wave, thereby enabling inspection with a satisfactory sensitivity even for an object of a trace amount. The inspection apparatus detects... | 09/14/2010 |
| 7777187 | Apparatus and method for investigating a sample An apparatus for investigating a sample comprising: a source of beam radiation; a detector for detecting a beam of radiation reflected by the sample and an optical subsystem for manipulating the beam between source and detector wherein the optical subsystem comprise... | 08/17/2010 |
| 7745791 | Detecting apparatus, and detecting method A detecting apparatus for detecting information of a liquid object or sample includes a transmission path, a THz wave supplying unit, a THz wave detecting unit, and an infiltrative holding member for infiltration and holding of a liquid object. The supplying unit su... | 06/29/2010 |
| 7745790 | Negative refractive index device for generating terahertz or microwave radiation and method of operation thereof A negative refractive index device and a method of generating radiation. In one embodiment, the device includes: (1) an optical input configured to receive light and (2) an optical medium having a negative index of refraction and a second-order nonlinearity proximat... | 06/29/2010 |
| 7737403 | Detector arrangement for electromagnetic radiation and method for measuring electromagnetic radiation A detector arrangement for electromagnetic radiation has at least an absorbing element and a cantilever sensor which are in operational connection with each other, so that the sensor is bendable in response to electromagnetic radiation absorbed by the absorbing elem... | 06/15/2010 |
| 7737402 | Distance adjusting apparatus and method, and object examining apparatus and method In apparatuses and methods for adjusting a distance to an object, or examining an object, by using terahertz radiation, a sensor portion and a distance changing portion are used. The sensor portion includes a generator for generating terahertz radiation, a transmiss... | 06/15/2010 |
| 7709799 | Terahertz detector A detector for electromagnetic radiation in the range 80 GHz to 4 THz comprises a laser light source (115) an optical modulator (13) arranged to modulate light from the laser light source (11) and a filter system (17) for selecting a defi... | 05/04/2010 |
| 7709798 | Terahertz optical gate This invention relates to a wide band optical gate in the terahertz domain (wavelengths in the far infrared). It comprises a first optical source (2) emitting a first beam (FTHz) in said terahertz domain, a first plate made of a semiconducting material (1 | 05/04/2010 |
| 7675036 | Reducing scattering related features in terhertz time domain spectroscopy by averaging the impulse waveform over a plurality of sample points A method of investigating an object, comprising the steps of: (a) irradiating the object with an optically-generated pulse of electromagnetic radiation, said pulse having a plurality of frequencies in the range from 100 GHz to 100 THz; (b) detecting radiation transm... | 03/09/2010 |
| 7675037 | Method and apparatus for measuring terahertz time-domain spectroscopy A method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition f... | 03/09/2010 |
| 7659513 | Low terahertz source and detector A detector system for performing at least one of transmitting and receiving electromagnetic radiation at a low-terahertz frequency. The detection of electromagnetic radiation at low-terahertz frequencies can be useful in the detection of various chemicals. Preferabl... | 02/09/2010 |
| 7652253 | Method and system for plasma-induced terahertz spectroscopy A method of analyzing a remotely-located object includes the step of illuminating at least a portion of a targeted object with electromagnetic radiation to induce a phase transformation in the targeted object, wherein the phase transformation produces an emitter pla... | 01/26/2010 |
| 7612341 | Image of sample using terahertz time domain spectroscopy in reflection mode to identify in a first material like normal breast tissue a second material like cancerous tissue by evaluating the phase change at the interface between the sample and a window like a quartz window, against which the sample is pressed A method of investigating a sample (breast tissue) (27), the sample comprising at least a first material (normal breast tissue) in order to determine they presence of at least one further material (cancerous tissue), the method comprising the steps of: Irradi... | 11/03/2009 |
| 7608826 | Specimen testing element, specimen information obtaining method and specimen testing apparatus A specimen testing element, a specimen information obtaining method and a specimen testing apparatus is used to obtain information on a specimen by utilizing a specific phenomenon attributable to wavelength selectivity, resonance characteristics and so on. The speci... | 10/27/2009 |
| 7595491 | Methods and systems for the enhancement of terahertz wave generation for analyzing a remotely-located object A method for generating terahertz radiation includes inducing a background plasma in a volume of a gas by focusing a first optical beam in the volume, and generating pulsed terahertz radiation with enhanced generation efficiency by focusing a second time-delayed opt... | 09/29/2009 |
| 7579596 | Millimetre and sub-millimetre imaging device The terahertz camera has a fixed objective lens (2) and a plurality of detectors (3) positioned at the focal plane of the objective lens (2). Each of the detectors (3) is mounted on a movable support (10) so that the antenna is cap... | 08/25/2009 |
| 7569822 | Image inspection device and image inspection method using the image inspection device In an inspection of a semiconductor wafer for a defect, when infrared light passing through a semiconductor wafer is imaged by a camera and an inspection is conducted using the image, a problem that halation occurs in the camera due to light leaking from the side of... | 08/04/2009 |
| 7557349 | Bolometer-type THz-wave detector In a bolometer-type THz-wave detector 1 in a micro-bridge structure in which a temperature detecting portion 14 (diaphragm) including a bolometer thin film 7 is supported by a supporting portion 13 in a state suspended from a circuit subs... | 07/07/2009 |
| 7554086 | Infrared camera measurement correction for pulsed excitation with subframe duration A method for measuring the timing of a flash event including capturing a first image prior to the commencement of a flash event. Capturing a second image during the occurrence of the flash event, and comparing the second image to the first image to determine a time ... | 06/30/2009 |
| 7544945 | Vertical cavity surface emitting laser (VCSEL) array laser scanner Vehicle-based lidar systems and methods are disclosed using multiple lasers to provide more compact and cost-effective lidar functionality. Each laser in an array of lasers can be sequentially activated so that a corresponding optical element mounted with respect to... | 06/09/2009 |
| 7541588 | Infrared laser illuminated imaging systems and methods Systems and methods for long range recognition and identification of objects and targets, and, more particularly, to long range imaging systems that include the use of mid-wave infrared laser illumination technology are provided. In particular, mid-wave infrared las... | 06/02/2009 |
| 7535005 | Pulsed terahertz spectrometer An apparatus for analyzing, identifying or imaging an object including a source of pulsed signals in the range of frequencies from 100 GHz to over 2 THz focused on the object; and a detector for acquiring spectral information from signals reflected from the object a... | 05/19/2009 |
| 7531803 | Method and system for transmitting terahertz pulses Systems for THz transmission using new types of THz waveguides with low loss, negligible group velocity dispersion and structural simplicity are described herein. The THz system incorporates the use of a waveguide with two or more substantially parallel conductive e... | 05/12/2009 |
| 7531802 | Method of analyzing a remotely-located object utilizing an optical technique to detect terahertz radiation A method of analyzing a remotely-located object includes the steps of inducing a volume of an ionized ambient gas to emit pulsed terahertz radiation directed toward a targeted object by focusing an optical pump beam in the volume and ionizing another volume of the a... | 05/12/2009 |
| 7531801 | Solder material test method and apparatus, control program and computer-readable recording medium Provided is a solder material test method that reduces labor and time and is preferred in operation hygiene. Detected are a first intensity at a particular wave number of infrared radiation reflected from a test-sample solder material by illuminating light to the te... | 05/12/2009 |
