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Radiant Energy > Invisible Radiant Energy Responsive Electric Signalling > Infrared Responsive > With Selection Of Plural Discrete Wavelengths Or Bands > With Radiation Source

With Radiation Source

With Radiation Source patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

04/10/14 - 20140097344 - Terahertz wave measurement device and method
The base plate is transmissive to terahertz waves, and a sample is disposed at the base plate. In the conductive periodic structure, plural transmission portions that transmit terahertz waves are arrayed with a predetermined period. The conductive periodic structure is disposed apart from a position at which the sample is...

03/06/14 - 20140061475 - Apparatus and method for contactless thickness measurement
A contactless thickness measuring apparatus is provided which includes an terahertz transmitter configured to receive the first optical path signal from the coupler and to generate a terahertz continuous wave using the first optical signal and an applied bias; an optical delay line configured to delay the second optical path...

02/27/14 - 20140054463 - Inspection device, bonding system and inspection method
According to an embodiment of the present disclosure, an apparatus of inspecting an overlapped substrate obtained by bonding substrates together is provided. The apparatus includes a first holding unit configured to hold and rotate the overlapped substrate, and a displacement gauge configured to measure displacements of peripheral sides of a...

01/02/14 - 20140001364 - Broadband or mid-infrared fiber light sources
An optical system for use in a spectroscopy procedure includes one or more semiconductor diodes configured to generate an input signal beam with a wavelength shorter than 2.5 microns that is amplified and communicated through optical fiber(s) to a nonlinear element configured to broaden the spectral width to at least...

12/12/13 - 20130327943 - Egr distribution and fluctuation probe based on co2 measurements
A diagnostic system having a single-port EGR probe and a method for using the same. The system includes a light source, an EGR probe, a detector and a processor. The light source may provide a combined light beam composed of light from a mid-infrared signal source and a mid-infrared reference...

09/05/13 - 20130228688 - Fast switching arbitrary frequency light source for broadband spectroscopic applications
A fast switching arbitrary frequency light source for broadband spectroscopic applications. The light source may operate near 1.6 um based on sideband tuning using an electro-optic modulator driven by an arbitrary waveform generator. A Fabry-Perot filter cavity selects a single sideband of the light source. The finesse (FSR/ΔνFWHM) of the...

11/01/12 - 20120273681 - Terahertz spectrometer
A solution for analyzing characteristics of compounds and materials (e.g., chemical composition, specific quantity, thickness, etc.) via THz time domain spectrometry is disclosed. In one embodiment, a spectrometry system includes: a portable housing including: a portable power source; a laser source connected to the portable power source; a terahertz (THz)...

05/10/12 - 20120112071 - Detection apparatus and method
Apparatus for detection of infrared radiation emitted from a taggant following excitation of the taggant sample measures the decay time of the radiation used. If the decay characteristic is accurately measured, the particular taggant can be accurately identified. The apparatus comprises an electronic controller, light-emitting diodes, a photo-detector, a first...

12/22/11 - 20110309248 - Optical remote sensing of fugitive releases
Disclosed is an open-path optical sensor. Typically, the optical sensor directs UV radiation from a source assembly to a detector assembly along a monitoring path. The source assembly emits UV radiation corresponding to a signal channel and to a reference channel. The detector assembly detects UV radiation corresponding to the...

11/17/11 - 20110278458 - Compact handheld non-laser detector for greenhouse gasses
Techniques are disclosed relating to gas leak detection. The techniques can be deployed, for example, in compact, handheld portable devices usable for detecting leaks in space-confined applications. The devices generally include a non-laser light source and thermal imaging camera that allow for detection of a target gas (or gasses) that...

08/11/11 - 20110192978 - Terahertz wave apparatus
Provided is a terahertz wave apparatus. The terahertz wave apparatus includes: a wavelength-fixed laser emitting a first laser light having a fixed first wavelength; a wavelength-swept laser emitting a second laser light having a tunable second wavelength; a coupler coupling the first laser light with the second laser light; and...

06/16/11 - 20110139988 - Method and system for evaluating the distribution of an absorbent material in an absorbent article
A system for imaging a distribution of an absorbent material within an absorbent article. The system includes a radiation source and a detector positioned such that the absorbent article is situated between the radiation source and the detector. The absorbent article includes an absorbent material having a spatial distribution within...

11/18/10 - 20100288928 - Apparatus and method for measuring terahertz wave
An apparatus for measuring a terahertz wave includes a dispersing section 103 for chirping the terahertz wave 104 generated from a generating section 101. A detecting section 102 detects waveform information on the terahertz wave chirped by the dispersing section 103. As a result, it is possible to acquire frequency...

06/03/10 - 20100133436 - Infrared power control supporting multi-use functionality
Systems and methods for infrared power control supporting multi-use functionality are presented. In one example, the transmit power level of an infrared (IR) light source on a headset having multiple functional states is controlled based on the headset function state. Infrared power control is used to determine proximity between an...

05/13/10 - 20100116990 - Metrology for gst film thickness and phase
Methods of determining thickness and phase of a GST layer on a semiconductor substrate are described using intensity spectra within the infra-red range. In particular, techniques for using certain transmission at certain frequencies are disclosed for faster thickness and phase determination in an in-line or standalone metrology/monitoring system for CMP...

04/01/10 - 20100078562 - Hidden sensors in an electronic device
An electronic device having one or more sensors is provided. The sensors may include any suitable type of sensor, including for example a proximity sensor, an ambient light sensor, or any other suitable type of sensor that emits or receives radiation (e.g., light waves) from the environment. The electronic device...

04/01/10 - 20100078563 - Simplified beam splitter for ir gas sensor
A non-dispersive single beam detection assembly in an infrared gas analyzer. The detection assembly comprises radiation source(s) providing infrared radiation, a measuring chamber, and a physical beam splitter for dividing said radiation beam into a reflected beam portion and a transmitted beam portion, or for combining a reflected beam portion...

07/30/09 - 20090189078 - Inspection apparatus and inspection method by using terahertz wave
An inspection apparatus includes a terahertz wave detection portion, a waveform shaping portion configured to shape a first answer signal with respect to a terahertz wave by using a signal acquired in the above-described terahertz wave detection portion, a measurement condition acquisition portion configured to acquire a first measurement condition,...

06/18/09 - 20090152468 - Detection apparatus and method
A technique and apparatus for detection of infrared radiation emitted from a taggant material sample following the excitation of the sample are described. The decay time of the radiation is a function of the particular taggant being used and so, if the decay characteristic or signature is accurately measured, the...

06/11/09 - 20090146060 - Orbitron based stand-off explosives detection
A microwave or terahertz and neutron radiation type detector, which uses an orbitron as a radiation source. The detector may have a polarity switching apparatus to enable the orbitron to selectively change from between short wave to neutron emission functions. A highly compact and lightweight identifier of explosives and other...

04/30/09 - 20090108204 - Biological information measuring apparatus
A light emission section spread-spectrum modulates a base band signal at a chip frequency f to thereby generate a primary modulated signal, modulates the primary modulated signal at a frequency 2f to thereby generate a secondary modulated signal, and emits a near-infrared light beam having a specific wavelength into a...

03/19/09 - 20090072146 - Correlated ghost imager
A method and system for detecting concealed weapons and explosives by imaging THz scenes using conventional optics and detectors is provided. Photon fields with two different wavelengths can be sent through a chopper and towards a wavelength-selective mirror. A light beam with a wavelength in the visible or IR range...

03/12/09 - 20090065696 - Detection method and apparatus
In a terahertz radiation detection system, an array of harmonic transmitters/receivers can be scanned across a field of view. By using an unbalanced pair of Schottky diodes in the mixer of a heterodyne receiver, the receiver can be converted to a transmitter, generating terahertz radiation at even harmonics of the...