Abstract:
Techniques described herein generally relate to a refractometer. Using electromagnetic energy, the refractometer can accurately measure refractive index of a liquid without bulky precision optics. By empirically determining a relationship between the refractive index of a liquid sample and a measured reflected power from a resonant structure when in contact with the liquid sample, the refractive index of a liquid can be determined by measuring this reflected power. Furthermore, using multiple light sources of different frequencies, the refractive index of the liquid sample can be determined over a very broad spectral range, for example from ultra-violet to far infrared.
Abstract:
An extreme ultraviolet (EUV) substrate inspection system and method of manufacturing thereof, includes: an EUV source directing EUV illumination through an aperture; a light detector detecting mask illumination with reduced off axis rays reflected off from a substrate; and a computing device processing image data detected by the light detector.
Abstract:
There is provided a system, a method, and a thermochromatic witness assembly to monitor a thermal environment of a composite structure. The thermochromatic witness assembly has a polymeric material and one or more thermochromatic probes mixed into the polymeric material to form a thermochromatic probe mixture. The thermochromatic probe mixture is applied to a transparent polymeric film, or is formed into the transparent polymeric film with a pressure sensitive adhesive (PSA) applied thereto, thus forming the thermochromatic witness assembly in a form of a thermochromatic applique. The thermochromatic applique is configured to be applied directly and continuously to a surface of the composite structure. The thermochromatic applique is further configured to monitor the thermal environment of the composite structure by detecting one or more temperatures and one or more times the surface of the composite structure is exposed to the thermal environment.
Abstract:
A reflectance spectroscopy measuring and sampling system for gemstone testing is disclosed. The system includes a first light source (1), a second light source (2), a light filtering element, an integrating sphere (S), an optical fiber (9), a spectroscopic detection module (10), an analog-digital conversion module (11) and a data processing terminal (12), wherein the integrating sphere (S) is provided with an entrance port, a sampling opening (6) and a reflected light exit port (7). A reflectance spectroscopy measuring and sampling method for gemstone testing is also disclosed. The system and the method have an excellent performance and can be widely used in the gemstone identification.
Abstract:
The invention relates to a method and a device (1) for determining a concentration (c) of a fluorescent substance in a medium, wherein an excitation radiation having an excitation wavelength (λex) is radiated through the medium having the fluorescent substance so that the fluorescent substance is excited in such a way that the fluorescent substance emits a fluorescence radiation having a fluorescence wavelength (λem), wherein the intensity of the fluorescence (Ifluor) is measured, from which the concentration (c) of the fluorescent substance in the medium is determined, wherein additionally the intensity (Itrans,ex) of a transmitted portion of the excitation radiation is measured, wherein the concentration (c) of the fluorescent substance is determined from the intensity of the transmitted portion of the excitation radiation (Itrans,ex) and the intensity of the fluorescence (Ifluor).
Abstract:
A method and apparatus for field spectroscopic characterization of seafood is disclosed. A portable NIR spectrometer is connected to an analyzer configured for performing a multivariate analysis of reflection spectra to determine qualitatively the true identities or quantitatively the freshness of seafood samples.
Abstract:
A method and device for analyzing oils, technical service fluids and for the evaluation of the operating states of units, wherein a drop of test fluid to be examined is applied to a test medium which is allowed to penetrate the medium, and is evaluated after a preselected time by optically comparing a resulting image with the data of a plurality of reference images with respect to a plurality of test criteria. The test fluids to be examined can give information about the state of the test fluids. Fast and reliable detection, evaluation, and assessment are possible and reduce the influence of subjective assessment influences. A computer-assisted comparison of the data of the images with the data of the reference images is performed. Data of the images from the front, back-light, and possibly the UV back-light recording are associated with images for a test criterion that has the greatest correspondence.
Abstract:
An electric-field enhancement element includes a propagating surface plasmon generating unit; a localized surface plasmon generating unit that is formed on an upper portion of a surface of a substrate and includes a plurality of fine metal structure bodies; and a metal layer that is formed on an upper portion of the substrate surface and propagates a propagating surface plasmon generated by the propagating surface plasmon generating unit to the localized surface plasmon generating unit in a direction along the substrate surface, in which the fine metal structure body includes a plurality of fine metal structures which are arranged to be separated from each other in a normal direction of the substrate surface.
Abstract:
A system and method for metered dosage illumination in a bioanalysis or other system. In accordance with an embodiment, an illumination system or subsystem is described that can provide optimized amounts of excitation light within the short exposure times necessary to measure fast biological activity. The amount of light can be precisely measured to provide quantitative results. The light flux can also be precisely controlled to generate only a prescribed minimum amount of light, in order to reduce adverse lighting effects on both fluors and samples. Although the examples herein illustrate the providing of metered dosage illumination in the context of a bioanalysis system, the techniques can be similarly used to provide metered dosage illumination in the context of other types of system. In accordance with various embodiments, the technique is particularly useful in any quality-control, analysis, or assessment-based environment. Typical research and development applications can include quality control, instrument calibration, and light output standardization; while clinical and diagnostics applications can include clinical monitoring, bioassay calibration and control for diagnostics, treatment and or therapeutic evaluation.
Abstract:
The present invention relates to a substrate inspecting apparatus which is capable of reducing an inspection time of a substrate having a plurality of inspection regions and improving convenience of a user. The substrate inspecting apparatus according to an embodiment of the present invention includes an inspection unit inspecting inspection regions of a substrate according to an inspection sequence to obtain image data of the inspection regions, a control unit comprising a plurality of data processing parts processing the image data of the inspection regions, which is transmitted by the inspection unit, and an optimization module optimizing the inspection sequence of the inspection regions and a data processing sequence of the data processing parts, and a user interface displaying an optimization-oriented information relating the inspection sequence and the data processing sequence optimized by the optimization module.