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WO/2008/024910A2 |
A level meter for measuring a liquid surface level in a tank includes a housing that attaches to the tank, an optical source and an optical sensor in the housing that transmit a laser pulse toward the liquid surface and receive the refle...
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WO/2008/008223A2 |
A method includes selecting one of performing ellipsometry or performing optical stress generation and detection. The method also includes, in response to selecting performing ellipsometry, applying at least one first control signal to a...
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WO/2008/008058A1 |
Disclosed are spectroscopic ellipsometer, and combined spectroscopic reflectometer/ellipsometer systems. The spectroscopic ellipsometer system portion includes polarizer (P) and analyzer (A) elements which remain fixed in position during...
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WO2007002182A9 |
Relating to chiral detection systems, various improvements are disclosed including an improved apparatus for detecting a chiral property of a sample. It has a rugged and stable optical rail that operates as a heat sink to the systems' el...
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WO/2008/002981A2 |
A system and method for detection and measurement of circular birefringences in materials, such as optically active (chiral) liquids and materials that exhibit the Faraday effect. The method and apparatus permit the detection of optical ...
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WO/2007/147959A1 |
The invention relates to a method of characterizing a scattering medium. According to the invention, the processing on the electromagnetic radiation scattered by the scattering medium is carried out for an unpolarized signal. In this way...
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WO/2007/149930A2 |
An interoferometnc fiber optic sensing system uses three optical fibers A sensing optical fiber (13) is applied to a structure to be monitored to detect displacement or the like by changing its optical path length A reference optical fib...
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WO/2007/134453A2 |
This invention provides a method for measuring and monitoring the state of polarization (SOP) of a polarization maintaining (PM) fiber and the like using a narrowband fiber Bragg grating (FBG) written on the same. The PM fiber therefore ...
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WO/2007/130001A2 |
The present invention relates to a multi-energy system that generates and/or forms images of targets/structures by applying Mueller matrix imaging principles and/or Stokes polarimetric parameter imaging principles to data obtained by the...
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WO/2007/130990A2 |
A system for measuring linear or circular diattenuation in an optical element includes a sample rotation stage for securing an optical element sample; a light source module for generating a source light beam and a detector module. The li...
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WO/2007/123696A2 |
To determine one or more features of an in-die structure on a semiconductor wafer, a correlation is determined between one or more features of a test structure to be formed on a test pad and one or more features of a corresponding in-die...
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WO/2007/120171A1 |
A combined ellipsometer and oscillator system applied to a chamber (CH) for containing fluid, and method of decorrelated determination of thickness and optical constants of depositable materials present in a fluid. In use the ellipsomete...
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WO/2007/121406A2 |
A sensor and method for determining the optical properties of a sample material is disclosed. The sensor comprises a light source that generates a linearly polarized light beam having a predetermined polarization orientation with respect...
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WO/2007/111159A1 |
An optical characteristic measuring device includes: an optical system (10), a light intensity information acquisition unit (40) for acquiring light intensity information on the light to be measured, and an operation process unit (60). T...
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WO/2007/109344A2 |
A spectrometer generates Vibrational Circular Dichroism (VCD) measurements having an exceedingly high signal-to-noise ratio, as well as a greater wavelength range over which measurements may be accurately provided. This is achieved by ut...
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WO/2007/087670A1 |
A photoelastic modulator, comprising a driving block and a driver transducer for perturbing said block in a predefined direction to establish a standing wave extending longitudinally in said block and hence perpendicularly to said predef...
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WO/2007/080790A1 |
A measurement apparatus comprises an optical intensity information acquirer (40) for acquiring optical intensity information on a measured light containing a given band component and modulated by both an optical element included in an op...
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WO/2007/077312A2 |
The invention relates to a method of analysing or observing an object (40) along an observation direction (θ, φ), characterized in that: - a substantially monochromatic incident electromagnetic wave in the form of a polarized plane wav...
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WO/2007/074429A1 |
A method for detecting and measuring physical perturbations sensed by a multi-mode waveguide, through which a number of modes of a coherent electromagnetic wave propagates through and exit from. The method comprises irradiating the exiti...
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WO/2007/071480A1 |
The present invention concerns a broadband ellipsometer / polarimeter system for analysing a sample (8) comprising an illumination source (5) emitting a polychromatic light beam (12), a polarisation state generator (PSG) (6) including a ...
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WO/2007/061460A2 |
Low aberration relay systems modified to perform as spatial filters in reflectometer, spectrophotometer, ellipsometer, polarimeter and the like systems.
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WO/2007/056541A2 |
An apparatus, methods, and systems for multi-color projection or display for video or lighting applications. One aspect of the present invention comprises an algorithm for utilizing at least four primary light sources to represent a proj...
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WO/2007/027408A1 |
A method for screening fiber polarization mode dispersion using a polarization optical time domain reflectometer is disclosed. A pulse radiation is emitted into an end of the fiber under test, and the backscattered radiation is measured ...
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WO/2007/025648A1 |
The invention relates to a specific method for determining a degree of saturation of a to be analyzed solution or suspension (12) of a substance dissolved in a solvent at a specific or specifiable temperature (T) and to a corresponding d...
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WO/2007/008335A1 |
Systems and methodology for orienting vertical position and tilt of samples, applied in ellipsometer and the like systems.
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WO/2007/003840A2 |
The invention relates to an electronic polarimetric imaging system use in a colposcopy device for in vivo monitoring a cervix, which is provided with a light source for illuminating the observable cervix and at least visual means for mon...
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WO/2006/135375A2 |
Elongated nanostructures and a method of fabricating elongated nanostructures with one or more sharp bends using a plasma enhanced chemical vapor deposition process comprising placing an anode above the nanostructure and a cathode below ...
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WO/2006/135681A2 |
Method and apparatus for testing of LCD panels is disclosed. An LCD panel under lest (30) may be mounted to a translatable table (40) between polarization state generator (10) and polarization state analyzer (16). For each location on ce...
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WO/2006/133258A2 |
Systems and methods are disclosed for using ellipsometer configurations to measure the partial Mueller matrix and the complete Jones matrix of a system that may be isotropic or anisotropic. In one embodiment two or more signals, which do...
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WO/2006/124396A2 |
The present invention provides beam-shaping optics for transforming an approximately gaussian beam profile into a (nearly) uniform distribution over a specified spot area. The beam-shaping optics provide significant advantages over exist...
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WO/2006/120982A1 |
It is possible to observe a state of stress applied to a region around a cavity reproducing a body cavity such as a blood vessel in a 3-dimensional model. In catheter insert simulation, when stress is applied to the region around the cav...
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WO/2006/116701A2 |
An optical technique improving the imaging of a target inside suspensions of scattering particles includes the illumination of the scattering particles with circularly polarized light The backscattered light from the host medium preserve...
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WO/2006/095036A1 |
The invention relates to a method and device for the evaluation of the specific values of the polarisation state of a signal transmitted within a photonic transmission system for a number of frequencies of one or more pulses extracted fr...
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WO/2006/091866A2 |
An interferometer includes a means for splitting, at a splitting location, an input light beam into a first beam and a second beam; and means for recombining, at a recombination location, the first beam and the second beam. The interfero...
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WO/2006/087041A1 |
The invention relates to an apparatus and to a method of controlling the polarization of an optical signal, comprising the steps of changing the SOP of an incoming optical signal by rotating a disk (14) being located in an optical path (...
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WO/2006/086566A2 |
A new family of methods to improve the accuracy of analyte concentrations measured in samples that both absorb and scatter light. A novel family of methods for determining analyte concentrations in a sample from one or more optical measu...
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WO/2006/086579A2 |
The present invention provides methods and apparatuses for accurate noninvasive determination of tissue (208) properties. Some embodiments of the present invention comprise an optical sampler (221) having an illumination subsyste (201), ...
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WO/2006/083944A1 |
The present invention relates to a system and method of detecting polarized identification indicia in real-time. A frame of image data is provided (110) having a plurality of pixels, wherein each pixel includes polarized light intensity ...
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WO/2006/081791A1 |
The invention relates to an arrangement and method for microscopic optical recording of anisotropies in microscopically small objects, which affect the polarisation properties of light. The invention particularly relates to an arrangemen...
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WO/2006/078843A1 |
A method and apparatus for resolving both the angular (nx,ny) and spatial -(x,y) dependence of the effective source coherence matrix for lithographic steppers and scanners is described. First an in-situ source metrology instrument is com...
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WO/2006/076484A2 |
To measure the critical dimensions and other parameters of a one- or two-dimensional diffracting structure of a film, the calculation may be simplified by first performing a measurement of the thickness of the film, employing a film mode...
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WO/2006/070161A1 |
The invention relates to a method and device for the polarimetric measurement of a flat object with regularly repeating patterns forming lines of a network. According to the invention, a first zero order measurement is carried out with a...
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WO/2006/064653A1 |
Disclosed is a terahertz photodetector comprising a first antenna (21A) for detecting a terahertz light (T2) polarized in a first direction (X direction), and a second antenna (21B) for detecting a terahertz light (T2) polarized in a sec...
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WO2005114148B1 |
Various systems for measurement or analysis of a specimen are provided. One system includes a first optical subsystem, which is disposed within a purged environment (224). The purged environment (224) may be provided by a differential pu...
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WO/2006/052644A2 |
An optical rotation measuring apparatus (10) including a light source (12) positioned to transmit light through a first polarizer (14) which is in optical communication with the light source (12). Also included is a sample cell (18) suit...
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WO/2006/047653A2 |
A variety of toy polariscopes (1) are simpler in design and less costly than precision instruments used in scientific research and stres analysis of materials and structures. The toy polariscopes are designed for a variety of objects (40...
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WO/2006/047408A2 |
A polarimetry technique for measuring optical activity that is particularly suited for high throughput screening employs a chip or substrate (22) having one or more microfluidic channels (26) formed therein. A polarized laser beam (14) i...
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WO/2006/047422A2 |
Provided are methods for determining the birefringence level of optical material such as polymeric film. In one embodiment, the method uses a setup of optical components that has known system reference angle. The sample (136) may be a st...
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WO/2006/023277A2 |
An-optical fiber sensor array is disclosed which includes a first sensor fiber and a first reference fiber coupled at one end thereof to one side of a first optical coupling. A first wavelength selective reflector is coupled to the other...
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WO2005122875B1 |
The invention relates to an image polarimeter which is used to determine quantitatively the level of scattering in any optical system, particularly the human eye (4). The instrument uses a double-pass ophthalmoscopic system as a nucleus,...
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