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WO/1999/008081A1 |
The invention concerns a micropolarimeter comprising an analyzer (1) and a detector (10) located past the analyzer in the direction of radiation and presenting a number of segments N¿D? which is higher than or equal to 3 (11). The inven...
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WO/1999/005488A1 |
A practical system and method for measuring waveplate retardation. The system employs a photoelastic modulator (22) in an optical setup and provides high sensitivity. The analysis is particularly appropriate for quality-control testing o...
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WO/1999/004229A1 |
A method and apparatus for measurement of the brightness, flow velocity and temperature of radiant media. A substantially collimated beam (3) of light is directed to a linear polarizer (5) through an interference filter (4). An electro-o...
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WO/1998/052019A1 |
Ellipsometer having light source means which provide a first light beam (g�1?) having a first angular frequency ($g(v)�1?) and a second light beam (g�2?) having a second angular frequency ($g(v)�2?), a neutral beam splitter (N) h...
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WO/1998/052006A1 |
An opto-mechanical device comprises an optically responsive actuating member in which a mechanical strain occurs in response to changes in its illumination. The actuating member is preferably at least partly formed from a semiconducting ...
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WO/1998/045869A1 |
Because of diffraction effects caused by slits or apertures (2) in optical measurement systems, the radiation energy which is directed towards a particular region on a sample will be spread over a large area than desirable. By employing ...
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WO/1998/039633A1 |
A spectroscopic rotating compensator material system investigation system including a photo array (DE's) for simultaneously detecting a multiplicity of wavelengths is disclosed. The spectroscopic rotating compensator material system inve...
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WO/1998/033055A1 |
The pixel position-to-wavelength calibration function of film measurement devices (10) such as spectroscopic ellipsometers and spectroreflectometers may shift due to temperature and humidity changes and mechanical factors. One or more wa...
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WO/1998/019142A1 |
The invention concerns an optical component of polarizing modulation, a polarimeter and a Mueller ellipsometer comprising this optical component. The optical component modulates an incident light beam (10) linearly polarized and sends ba...
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WO/1998/015501A2 |
Methods and apparatus for screening diverse arrays of materialsa nd for imaging a library of materials are provided using ultrasonic imaging techniques. Systems include tranducer lens (109) or mechanical resonator for exiting an element ...
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WO/1998/015805A1 |
Methods and apparatus for screening diverse arrays of materials (1205) are provided. In particular, techniques for rapidly characterizing compounds in arrays of materials (1205) in order to discover and/or optimize new materials with spe...
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WO/1998/015813A1 |
Methods and apparatus for screening diverse arrays of materials using infrared imaging techniques are provided. Typically, each of the individual materials on the array will be screened or interrogated for the same material characteristi...
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WO/1998/015856A1 |
A distributed sensor (10) includes a plurality of stages (24, 28, 32, 36, 40) connected in series, each stage incorporating a length of polarization maintaining fiber (12) exposed to a phenomena such as mechanical deformation or temperat...
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WO/1998/015969A2 |
Methods and apparatus for screening diverse arrays of materials are provided. In particular, techniques are provided for rapidly characterizing compounds in combinatorial arrays of materials for discovering and/or optimizing new material...
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WO/1998/013676A1 |
The polarization of fluorescent light or Raman scattering light which is emitted from a sample when light is applied to the sample is measured with high accuracy. Excitation light which is emitted from a pulse excitation light source (1)...
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WO/1998/009276A1 |
A first and second linear polarizer (14, 16) produce a first and second linearly polarized beam of light, respectively, which are made incident upon a magneto-optical disc (18) at a common point. Both beams have equal or nearly equal int...
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WO/1998/007012A1 |
A 6-axis laser measurement system (300) includes a novel 5-D measurement apparatus and precision laser roll detector system (100). The 5-D system (105) measures pitch, yaw, X, Y, Z displacements with a single setup of a laser head (102) ...
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WO/1998/006059A1 |
A method and system are provided for reliably detecting localized birefringence defects of an object such as an optical media substrate (10) in a dynamic local birefringence field created during cooling of the optical media substrate at ...
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WO/1998/003853A1 |
An ellipsometer, and a method of ellipsometry, for analyzing a sample (2) using a broad range of wavelengths, includes a ligth source (4) for generating a beam of polychromatic light for interacting with the sample. A polarizer (6) polar...
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WO/1997/045747A1 |
Apparatus and method for characterizing free-space electromagnetic energy, suitable for real-time two-dimensional far-infrared imaging applications. The sensing technique is based on a non-linear coupling between a low-frequency electric...
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WO/1997/045711A1 |
A liquid crystal (LC) polarization modulator segment (216, 218) includes a monitoring device (220). The monitoring device (220) includes a polarized reference light source (222), located at an LC polarization monitor input, and polarized...
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WO/1997/035177A1 |
Plasma interaction with solid surface (during the etching or deposition) is monitored by utilising the effect of changes of state of polarisation of light. The substrate changes physical parameters during plasma processing. The monitored...
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WO/1997/026515A1 |
A sorting system (10) propels a stream of randomly arranged PET and PVC articles (12, 14) through an inspection zone (20) including a first light polarizer/analyzer combination (24, 26), an article-detecting gap (G), and a second light p...
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WO/1997/018470A1 |
An apparatus for urinalysis which requires easy maintenance without using articles of consumption by measuring the optical rotation of urine to determine the concentration of optically active substances in the urine. Polarized light is t...
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WO/1997/015812A1 |
A device for detecting polarization of light comprising a first photodetector tuned to absorb TE polarization, a second photodetector tuned to absorb TM polarization, and a circuit for comparing an output from the first and second photod...
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WO/1997/004300A1 |
An optical collector head comprises a beam splitting device (5) capable of producing at least three output beams (9) in different directions; a single objective lens (4) to provide a collimated beam to the beam splitting device (5); and ...
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WO/1997/002476A1 |
A polarization state and polarization characteristics of a light transmitting medium are evaluated by Jones vectors containing Stokes vectors and Jones matrix. Rays of light of under three kinds of polarized states are applied from an in...
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WO/1996/029583A1 |
The ellipsometric microscope (10) broadly includes a light source (14) for emitting a beam of monochromatic, collimated light, an adjustable support assembly (12) for directing the light beam along an incident path (56) for impingement o...
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WO/1996/015429A1 |
An apparatus (10) comprises an optical filter (12), which resolves electromagnetic radiation into a sequence of resolved polarization components, an imaging device (14), having a storage device (16), and a driver (18). The imaging device...
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WO/1995/014243A1 |
A device (11) will detect man-made objects by using a polarizer (23). The polarizer (23) rotates about an axis in front of a lens array (19). The rotation of the polarizer alternately polarizes light received in proportion to the speed o...
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WO/1995/002814A1 |
An optical measurement device is disclosed for evaluating the parameters of a sample. The device includes a polychromatic source for generating a probe beam. The probe beam is focused on the sample surface. Individual rays within the ref...
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WO/1994/025823A1 |
An ellipsometric measuring system is set up in association with a vacuum chamber on a production line for thin film samples. The ellipsometer (8) has a scanner (12) for directing the incident light beam to different locations on a thin f...
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WO/1994/012665A1 |
A method is described by which the association between an oligonucleotide labeled by attachment of a fluorophore and another macromolecule such as a protein or nucleic acid may be determined quantitatively in solution accuretely and with...
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WO/1994/010795A1 |
A polarization viewer comprising a mechanism (12, 18, 20) for forming a broadview image having a spectral width greater than 2 angstroms and 50� based on polarization information of a scene. The polarization viewer is also comprised of...
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WO/1993/005376A1 |
The presence and concentration of an optical active constituent of a fluid medium (5) is determined in situ by immersing in the fluid medium (5) a probe (1) constructed to pass plane polarized light (34) through the fluid medium (5) in t...
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WO/1992/021949A1 |
A method of determining induced change of polarization state of light in a polarization element comprising transmitting unpolarized light from a light source at the one end of an optical transmitter waveguide means (21) to polarizer mean...
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WO/1992/012404A1 |
The ellipsometer (1) and method involve directing polarized light for interaction with an optical system (2) under study at different angles of incidence from a single beam of light and detecting the light interacted with the optical sys...
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WO/1992/009880A2 |
An inspection system for providing high contrast images of two materials of an article to be inspected is disclosed. Light with variable spectral range and large angular coverage is passed from the source through a polarizer, reflects fr...
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WO/1991/020093A1 |
A method and apparatus for controlling the growth of a multi-species film. During the film growth, an ellipsometer (40, 52, 54, 62, 64, 70, 72) continuously monitors the surface (24) on which the film is growing. The ellipsometer data is...
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WO/1991/012501A1 |
Apparatus and method for determining dynamically the polarization vector direction, or polarization vector components and associated temporal phase angle, of a light beam. The apparatus includes a compact polarization beam splitter (19) ...
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WO/1991/012314A1 |
A differential polarimeter is disclosed for detecting changes in optical rotation between a test cell (10) and reference cell (12). The test cell (10) contains a fluid sample exposed to an analyte specific enzyme; the reference cell (12)...
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WO/1991/010886A1 |
Sensor for the detection and measurement of the rotation angle of the plane of polarization of light supplied by a sensitive system (19) acted on by an external phenomenon, such as, for example, a magnetic field, whereby the sensor is co...
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WO/1990/010852A1 |
A compact ellipsometric apparatus (70) is constructed using as a building block a tri-beam ellipsometric sensor having a monichromatic source (30) of polarized light with a diverging beam of sufficient divergence that three analyzers (52...
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WO/1989/007246A1 |
An optical amplifier (2) for amplifying optical polarization state change effects comprises an arrangement for passing polarized light through a material (6) a plurality of times such that changes in the polarization state of the polariz...
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WO/1989/006354A1 |
A differential ellipsometer to measure the epitaxial growth of crystalline materials by molecular beam epitaxy. The ellipsometer projects a light beam (3) to the surface, and the reflected light beam (5) is returned to another point on t...
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WO/1989/001612A1 |
In a optical detection system a plurality of photo-diode detectors are placed in an enclosure. The enclosure has an aperture through which is directed a light beam to be analysed. To eliminate the effect which ambient light entering the ...
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WO/1989/000767A1 |
A light detector (100) measures the intensity of two different light beams (110, 120), computes a ratio of an AC to a DC component for each light beam, and computes a quotient by dividing a first of the above ratios by a second of the ab...
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WO/1988/003266A1 |
High pressure liquid chromatography apparatus for use in the analysis of optically-active materials comprises a semiconductor laser diode radiation source (10), a test sample holder (13) through which radiation from the radiation source ...
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WO/1986/007631A1 |
A photopolarimeter for the simultaneous measurement of all four Stokes parameters of light. The light beam, the state of polarization of which is to be determined, strikes, at oblique angles of incidence, three photodetector surfaces (D0...
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WO/1986/002159A1 |
The measurement arrangement for analysing electromagnetic radiation contains, in the radiation path, the following assemblies arranged one behind the other: (a) at least one linear polariser (2); (b) at least one optically active element...
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