Patent application number | Description | Published |
20080224071 | 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 information from an object 112 based on a change in an electromagnetic wave transmission state caused by plural times of interactions between the electromagnetic wave and the object 112. The inspection apparatus includes a transmission line 16, an electromagnetic wave supplying and detecting unit 111 for supplying the transmission line 16 with the electromagnetic wave and detecting the electromagnetic wave, a reflection unit 110 for reflecting the electromagnetic wave transmitting through the transmission line 16, and an inspection unit 113 for placing the object 112 between the electromagnetic wave supplying and detecting unit 111 and the reflection unit 110, wherein the transmission line 16, the reflection unit 110 and the inspection unit 113 are formed on a same substrate 11. | 09-18-2008 |
20080234568 | BIOLOGICAL INFORMATION MONITORING APPARATUS - A biological information monitoring apparatus highly precisely observes a clothed subject who is taking any desired posture. The apparatus acquires information on positional displacements of the surface of a living body, by generating a high-frequency electromagnetic wave to radiate it into air, detecting the electromagnetic wave scattered by the surface of the living body, computationally determining the changes with time of the positional displacements of the surface of the living body from the state of propagation of said electromagnetic wave and computationally determining characteristic quantities of vibrations of the living body such as the pulse or the respiration from the changes with time as biological information. | 09-25-2008 |
20080243410 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - Provided are an image forming apparatus and an image forming method which are capable of obtaining an image of a measured object using a relatively simple structure in a short time. In the image forming apparatus, an electromagnetic wave generated by an electromagnetic wave generator is emitted to the measured object through a spatial modulation unit for spatially modulating a signal intensity. An electromagnetic wave that has passed through the measured object is measured by an electromagnetic wave detecting unit. A measurement signal is processed by a signal processing section based on a reference signal synchronized with the signal intensity modulated by the spatial modulation unit. The image is formed by an image acquisition section. | 10-02-2008 |
20080304038 | HIGH FREQUENCY ELECTRICAL SIGNAL CONTROL DEVICE AND SENSING SYSTEM - A high frequency electrical signal control device comprises a transmitter for generating a high frequency electrical signal, a receiver, a transmission line for propagating the electrical signal, and a structure for radiating the electrical signal propagated through the transmission line to the space or receiving a signal from the space. The degree of coupling of the electrical signal between the space and the transmission line provided by the structure can be variably controlled. | 12-11-2008 |
20090051452 | Oscillation device and inspection apparatus - An oscillation device has a resonant tunneling diode formed by interposing a gain medium including a first barrier layer, a quantum well layer and a second barrier layer between a first thickness adjusting layer and a second thickness adjusting layer. The oscillation device also has a switch for switching the polarity of a bias voltage being applied to the resonant tunneling diode. The first thickness adjusting layer and the second thickness adjusting layer have different thicknesses. Thus, a single oscillation device is driven to oscillate with different oscillation frequencies. | 02-26-2009 |
20090056455 | INSPECTION APPARATUS AND INSPECTION METHOD USING ELECTROMAGNETIC WAVE - The present invention is to provide inspection apparatus and method of being able to acquire electromagnetic wave response information of an inspection object at high speed as average information using an electromagnetic wave. An inspection apparatus using an electromagnetic wave | 03-05-2009 |
20090059226 | ELECTROMAGNETIC ANALYSIS APPARATUS - An analysis apparatus for analyzing a specimen comprises a spectral separator for dispersing spatially an electromagnetic wave introduced from the specimen into spectral components, a sensing element array containing plural sensing elements for sensing the spectral components of the electromagnetic wave dispersed spatially by the spectral separator, and a spectrum calculator for calculating the spectrum from the signal sensed by the sensing elements; the sensing element array having sensitivities different to each of the spectral components of the electromagnetic wave dispersed spatially by the spectral separator, and the spectral separator and the sensing element array being placed so as to receive the spectral components by each of the sensing elements at different incident angles. | 03-05-2009 |
20090161715 | LASER DEVICE - The laser device has a gain medium, first and second clads sandwiching the gain medium in the thickness direction, and a cavity structure for resonating the electromagnetic wave generated in the gain medium. The gain medium includes a plurality of active regions for generating an electromagnetic wave and at lease one connecting region sandwiched among the active regions. The first and second clads are each formed of a negative permittivity medium having a permittivity the real part of which is negative relative to the electromagnetic wave. A potential-adjusting portion is arranged between the connecting region and the first clad and between the connecting region and the second clad for adjusting the electric potential of the connecting region. | 06-25-2009 |
20090190893 | OPTICAL PULSE COMPRESSOR - Optical pulse compressor having a chirp unit including a normal dispersion fiber that provides a positive chirp to an input pulse and having a dispersion compensator including an anomalous fiber is provided. The nonlinear coefficient and the absolute value of the second-order group-velocity dispersion of the anomalous fiber that forms the dispersion compensator is set such that a soliton order becomes one or more, and the fiber length of the anomalous dispersion fiber is made to be equal to or smaller than a length required for optical soliton formation. | 07-30-2009 |
20090198466 | INFORMATION ACQUIRING APPARATUS, AND INFORMATION ACQUIRING METHOD - An information acquiring apparatus includes a light source portion for generating pulse-shaped pump light, and first and second probe light in synchronization with each other. A generating portion generates terahertz pulses when irradiated with the pump light. A detecting portion detects pulses of terahertz radiation from the object. A first delay portion adjusts an optical path difference between optical paths of the pump light and the first probe light reaching the detecting portion, so that the detecting portion detects a field intensity of a fixed point on the time domain waveform of the terahertz pulse from the object, following the fixed point. A second delay portion adjusts an optical path difference between the optical path of the pump light and the second probe light reaching the detecting portion by a sum of an additional optical path adjustment amount and the optical path difference, so that the detecting portion obtains the time domain waveform. A correction processing portion compensates for influence of a change in condition of the object on the time domain waveform, using the field intensity of the fixed point, or the adjustment amount adjusted by the first delay portion. | 08-06-2009 |
20090201030 | Method and apparatus for inspecting an object using terahertz electromagnetic wave - An inspection apparatus including a transmission line for propagating an electromagnetic wave; an electromagnetic wave supply unit for supplying a terahertz wave to the transmission line; an electromagnetic wave detection unit for detecting the terahertz wave from the transmission line; a conductive region; an inspection object supply unit; and a deposition unit. The conductive region is arranged at a site including at least a part of the range to which an electric field distribution of the electromagnetic wave propagating through the transmission line extends. The inspection object supply unit holds and supplies the inspection object to the outside, and the deposition unit deposits the inspection object selectively on the conductive region by electrostatic force. The electromagnetic wave supplied from the electromagnetic wave supply unit and propagated through the transmission line is detected by the electromagnetic wave detection unit to obtain information on the inspection object. | 08-13-2009 |
20090213880 | PULSE LASER APPARATUS, TERAHERTZ MEASURING APPARATUS, AND TERAHERTZ TOMOGRAPHIC APPARATUS - A pulse laser apparatus includes a laser configured to generate a pulse of a laser beam, a fiber amplifier, and a pulse compressor. The fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a wavelength of the laser beam generated from the laser. The pulse laser apparatus further includes a unit configured to give a loss to energy portions in a wavelength region corresponding to a zero-dispersion wavelength of the rare-earth doped fiber and/or a wavelength region longer than the zero-dispersion wavelength within a wavelength spectrum of the laser beam having been chirped in the fiber amplifier. | 08-27-2009 |
20090236529 | 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 supplies an electromagnetic wave in a frequency range between 30 GHz and 30 THz to the transmission path. The detecting unit detects the THz wave transmitted through the transmission path. The infiltrative holding member is set at a location containing at least a portion in which an electric field distribution of the THz wave propagating along the transmission path extends. | 09-24-2009 |
20100013038 | PHOTO-SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A photo-semiconductor device comprises a photoconductive semiconductor film provided with electrodes and formed on a second substrate, the semiconductor film being formed by epitaxial growth on a first semiconductor substrate different from the second substrate, the second substrate being also provided with electrodes, the electrodes of the second substrate and the electrodes of the photoconductive semiconductor film being held in contact with each other. | 01-21-2010 |
20100045392 | ELECTROMAGNETIC-WAVE OSCILLATOR - An electromagnetic-wave oscillator includes a substrate, an EMW oscillating unit including a gain portion, an EMW resonance portion, an EMW radiating portion, and a ground (GND) portion, and a supplying unit for supplying electric power to the EMW oscillating unit. The ground portion regulates a predetermined reference electric potential for the gain portion, the EMW resonance portion, and the EMW radiating portion. The EMW oscillating unit is disposed on a first surface of the substrate. The supplying unit is disposed on a second surface of the substrate extending on an opposite side to the first surface. The EMW oscillating unit and the supplying unit are electrically connected via a penetrating electrode formed in the substrate. | 02-25-2010 |
20100051811 | Photoconductive Element and Sensor Device - There is provided a photoconductive element capable of generating and detecting broadband electromagnetic waves such as terahertz waves at a comparatively high efficiency by decreasing or avoiding the absorption of electromagnetic waves into a substrate. A photoconductive element | 03-04-2010 |
20100140481 | APPARATUS FOR DETECTING INFORMATION ON OBJECT - An apparatus for detecting information on an object includes an irradiating unit, a detecting unit, and an information-obtaining unit. The irradiating unit irradiates the object with electromagnetic waves as a rectangular shaped beam. The electromagnetic waves include a frequency component in (or range of) at least part of a frequency region of 30 GHz to 30 THz, and have variations in magnitude at intervals of 10 | 06-10-2010 |
20100148069 | INFORMATION ACQUISITION APPARATUS AND INFORMATION ACQUISITION METHOD USING TERAHERTZ WAVE FOR ACQUIRING INFORMATION ON OBJECT - An information acquisition apparatus includes a pulse generator | 06-17-2010 |
20100164636 | OSCILLATION DEVICE - To provide an oscillation device having a long oscillation wavelength in which wavelength variable width is relatively broad and wavelength sweep rate is relatively high. An oscillation device includes a gain medium having a gain with respect to an electromagnetic wave to be oscillated, cavity structures for resonating the electromagnetic wave, and energy injection means and for injecting pumping energy into the gain medium. The gain medium is sandwiched between a first negative permittivity medium and a second magnetic permittivity medium each of which real part of permittivity with respect to the electromagnetic wave is negative. Electric field application means is provided for at least one of the first negative permittivity medium and the second negative permittivity medium to apply an electric field for changing a depletion region formed at a boundary part with the gain medium. | 07-01-2010 |
20100171835 | IMAGING METHOD AND APPARATUS - An object of examination is irradiated with an electromagnetic wave including a frequency component from 30 GHz to 30 THz and a Fourier transform image of the transmitted or reflected electromagnetic wave from the object of examination is obtained. The obtained Fourier transform image is subjected to a spatial frequency filtering processing. This method can visualize only the part to be visualized in an imaging operation using a terahertz wave. | 07-08-2010 |
20110032966 | LASER DEVICE - The laser device has a gain medium, first and second clads sandwiching the gain medium in the thickness direction, and a cavity structure for resonating the electromagnetic wave generated in the gain medium. The gain medium includes a plurality of active regions for generating an electromagnetic wave and at lease one connecting region sandwiched among the active regions. The first and second clads are each formed of a negative permittivity medium having a permittivity the real part of which is negative relative to the electromagnetic wave. A potential-adjusting portion is arranged between the connecting region and the first clad and between the connecting region and the second clad for adjusting the electric potential of the connecting region. | 02-10-2011 |
20110210252 | PULSE LASER APPARATUS, TERAHERTZ MEASURING APPARATUS, AND TERAHERTZ TOMOGRAPHIC APPARATUS - A pulse laser apparatus includes a laser configured to generate a pulse of a laser beam, a fiber amplifier, and a pulse compressor. The fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a wavelength of the laser beam generated from the laser. The pulse laser apparatus further includes a unit configured to give a loss to energy portions in a wavelength region corresponding to a zero-dispersion wavelength of the rare-earth doped fiber and/or a wavelength region longer than the zero-dispersion wavelength within a wavelength spectrum of the laser beam having been chirped in the fiber amplifier. | 09-01-2011 |
20120097978 | PHOTO-SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A photo-semiconductor device comprises a photoconductive semiconductor film provided with electrodes and formed on a second substrate, the semiconductor film being formed by epitaxial growth on a first semiconductor substrate different from the second substrate, the second substrate being also provided with electrodes, the electrodes of the second substrate and the electrodes of the photoconductive semiconductor film being held in contact with each other. | 04-26-2012 |
20120108004 | PHOTO-SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing photo-semiconductor device that has a photoconductive semiconductor film provided with electrodes and formed on a second substrate, the semiconductor film being formed by epitaxial growth on a first semiconductor substrate different from the second substrate, the second substrate being also provided with electrodes, the electrodes of the second substrate and the electrodes of the photoconductive semiconductor film being held in contact with each other. | 05-03-2012 |
20120177332 | Optical Pulse Compressor - Optical pulse compensator having a chirp unit including a normal dispersion fiber that provides a positive chirp to an input pulse and having a dispersion compensator including an anomalous fiber is provided. The nonlinear coefficient and the absolute value of the second-order group-velocity dispersion of the anomalous fiber that forms the dispersion compensator is set such that a soliton order becomes one or more, and the fiber length of the anomalous dispersion fiber is made to be equal to or smaller than a length required for optical soliton formation. | 07-12-2012 |