Abstract:
A laser driven light source comprises laser and focusing optics. These produce a beam of radiation focused on a plasma forming zone within a container containing a gas (e.g., Xe). Collection optics collects photons emitted by a plasma maintained by the laser radiation to form a beam of output radiation. Plasma has an elongate form (L>d) and collecting optics is configured to collect photons emerging in the longitudinal direction from the plasma. The brightness of the plasma is increased compared with sources which collect radiation emerging transversely from the plasma. A metrology apparatus using the light source can achieve greater accuracy and/or throughput as a result of the increased brightness. Back reflectors may be provided. Microwave radiation may be used instead of laser radiation to form the plasma.
Abstract:
An arrangement for attenuated total reflectance (ATR) infrared spectroscopy uses a reflection matrix for location-resolved spectroscopy of aqueous and/or powdery samples with a high signal-to-noise ratio and without previous complex preparation of the samples. The method of using the reflection matrix produces imaging of the sample with a high signal strength.
Abstract:
A method and instrument for detecting the presence or absence of a target organism in a test sample is provided. The instrument includes a carousel, a light source, alight detector, and a control system. The carousel is configured to hold a plurality of test sample containers, with each container held by the carousel at a container position. Each of the containers holds an admixture of a test mixture inoculated with the test sample. The light detector is operable to detect light emitted by the light source that has passed through the test sample disposed within the test container. The control system includes a processor. The control system is adapted to produce information indicative of the presence or absence of the target organism in the test sample using signals produced by the light detector.
Abstract:
The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a pteroyl ligand that binds to a target receptor protein, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid or derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds.
Abstract:
A technique facilitates formation evaluation with downhole devices which may include fluid analyzers having atomic absorption spectroscopy (AAS) systems. According to an embodiment, a fluid analyzer of a downhole tool may be positioned in a wellbore penetrating a subterranean formation. The downhole tool comprises a downhole flowline for receiving a sample fluid. Additionally, the fluid analyzer comprises a flowline positioned to receive the sample fluid for analysis by the atomic absorption spectroscopy system. The atomic absorption spectroscopy system has a light source to generate light and to excite atoms of a substance in the sample fluid. The atomic absorption spectroscopy system also comprises a detector to measure how much light has been absorbed by the substance, thus enabling the atomic absorption spectroscopy analysis.
Abstract:
A method of determining a pathlength deviation of a sample (610), the method comprising: exposing the sample (610) to electromagnetic radiation at a plurality of wavenumbers, determining electromagnetic absorption in the sample (610) at the plurality of wavenumbers, determining a first wavenumber associated with a first absorption level of an absorption band and a second wavenumber associated with a second absorption level of the absorption band, wherein the second wavenumber is different from the first wavenumber, determining a difference between the first wavenumber and the second wavenumber, and determining the pathlength deviation based on the difference.
Abstract:
A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length but that is less than the long coherence lengths.
Abstract:
An inspection apparatus 1 for solar cells 100 includes: a visible light source 11 adapted to irradiate visible light; a CCD camera 15 adapted to measure a reflection image based on the visible light reflected by an antireflective film of a solar cell 100; an infrared light source 13 adapted to irradiate the solar cell 100 with infrared light; and a CCD camera 16 adapted to measure a transmission image based on the infrared light transmitting through the solar cell 100. In the inspection apparatus 1, as a result of comparing the reflection image and the transmission image with each other, of areas respectively appearing as bright spots in the reflection image, an area appearing as a dark spot in the transmission image is determined as an area including a particle, whereas of the areas respectively appearing as the bright spots in the reflection image, an area other than the area determined as the area including the particle is determined as an area including a pinhole.
Abstract:
A portable spectrometer system is disclosed for more reliable and convenient on-site drug testing. More particularly, but not by way of limitation, the presently disclosed and/or claimed inventive concept(s) relates to a portable spectrometer system having a test strip having a fluorescent indicator, a fluorimeter, and a mobile computing device capable of determining the identity of an unknown substance in the sample.
Abstract:
The present invention provides a measuring apparatus which measures a shape of an object to be measured, comprising an emitting unit configured to emit pattern light, an optical system configured to irradiate the object with the pattern light emitted from the emitting unit, a deflection unit configured to deflect light emitted from the optical system, an image sensing unit configured to sense an image of the object irradiated with the pattern light, and a processing unit configured to determine the shape of the object based on the image of the object sensed by the image sensing unit, wherein the deflection unit includes a deflection element, wherein the measuring apparatus irradiates the object with light deflected by the deflection element, and a direction deflected by the deflection element differs depending on a polarization state of incident light in the deflection element.