Abstract:
Die Erfindung betrifft eine integrierte Schaltung zur Messung der Polarisation von Licht mit polarisationsempfindlichen Sensoren mit unterschiedlichen Ausrichtungen der Polarisationsebenen als Grundelemente in vorzugsweise vier unterschiedlichen Ausrichtungen (1,2,3,4), mit sensorischen Elementen, die je mit einem Polarisationsfilter zu einem der polarisationsempfindlichen Sensoren als bauliche Einheit zusammenwirkend angeordnet sind, wobei das polarisationsempfindliche Filter des als bauliche Einheit angeordneten polarisations-empfindlichen Sensors eine gezielte Ausdehnung und Orientierung aufweist, wobei das Polarisationsfilter mit lithographischen Methoden erzeugte Gitterstrukturen in mindestens einer Fertigungsebene aufweist, wobei die polarisationsempfindlichen Sensoren unterschiedlicher Ausrichtung aus einer Vielzahl von einzelnen Sensorelementen bestehen, die in einer Matrix angeordnet sind, wobei in der integrierten Schaltung Einrichtungen vorhanden sind, die konfiguriert sind, aus den Signalen der polarisationsempfindlichen Sensoren eine Aussage über die Polarisation des einfallenden Lichts zu treffen, wobei die Grundelemente mit unterschiedlichen Ausrichtungen (1,2,3,4) in einer 8x8-Matrix angeordnet sind, wobei die Grundelemente in der ersten Zeile der 8x8-Matrix die Anordnung [1,2,3,4,2,1,4,3], der zweiten Zeile der 8x8-Matrix die Anordnung [4,3,2,1,3,4,1,2], der dritten Zeile der 8x8-Matrix die Anordnung [3,4,1,2,4,3,2,1], der vierten Zeile der 8×8-Matrix die Anordnung [2,1,4,3,1,2,3,4], der fünften Zeile der 8x8-Matrix die Anordnung [4,3,2,1,3,4,1,2], der sechsten Zeile der 8x8-Matrix die Anordnung [1,2,3,4,2,1,4,3], der siebten Zeile der 8x8-Matrix die Anordnung [2,1,4,3,1,2,3,4] und der achten Zeile der 8x8-Matrix die Anordnung [3,4,1,2,4,3,2,1] aufweisen.
Abstract:
Provided is an optical source apparatus that may generate two different optical frequency combs. The optical source apparatus includes an optical resonator and a continuous wave laser emitting laser light having a spectrum component corresponding to a resonance frequency of the optical resonator, and the optical resonator is configured to generate a first frequency comb and a second frequency comb having different modes by interacting with the laser light emitted by the continuous wave laser.
Abstract:
A wet chemistry analyzer is provided. The wet chemistry analyzer comprises a reaction chamber configured to receive a reactant solution from a sample inlet and facilitate a process reaction. The wet chemistry analyzer also includes a detection chamber configured to receive a portion of a reaction mixture from the reaction chamber and measure a concentration of a chemical within the reaction mixture. The reaction chamber and the detection chamber are fluidically coupleable such that a portion of the reaction mixture can be directed to flow into the detection chamber to pre-condition a surface inside the detection chamber.
Abstract:
A reflective optics system that preferably requires the presence of both convex and a concave mirrors that have beam reflecting surfaces, the application of which achieves focusing of a beam of electromagnetic radiation onto a sample, (which can be along a locus differing from that of an input beam), with minimized effects on a polarization state of an input beam state of polarization based on adjusted angles of incidence and reflections from the various mirrors involved.
Abstract:
This relates to sensor systems, detectors, imagers, and readout integrated circuits (ROICs) configured to selectively detect one or more frequencies or polarizations of light, capable of operating with a wide dynamic range, or any combination thereof. In some examples, the detector can include one or more light absorbers; the patterns and/or properties of a light absorber can be configured based on the desired measurement wavelength range and/or polarization direction. In some examples, the detector can comprise a plurality of at least partially overlapping light absorbers for enhanced dynamic range detection. In some examples, the detector can be capable of electrostatic tuning for one or more flux levels by varying the response time or sensitivity to account for various flux levels. In some examples, the ROIC can be capable of dynamically adjusting at least one of the frame rate integrating capacitance, and power of the illumination source.
Abstract:
According to an aspect of the invention, it is provided a process of detection of light comprising: - a step of flowing an electric current through at least a first dielectric junction, said first dielectric junction comprising at least a first metallic layer extending along a first reference plane and a second metallic layer extending parallel to said first reference plane, said first and second metallic layers being separated from each other by a dielectric layer ensuring non-ohmic conduction between said first and second metallic layers; - a step of measuring the electric resistance of the first dielectric junction; - a step of determining the presence or the absence of light by using the measured electric resistance of the first dielectric junction. According to another aspect of the invention, it is provided a process of characterization of the degree to which detected light is polarized along a first spatial direction and/or along a second spatial direction and/or along a third spatial direction, using a device at the nanometre scale. This enables the detection of the orientation of the incoming light.
Abstract:
A long wave infrared imaging polarimeter (LWIP) is disclosed including a pixilated polarizing array (PPA) in close proximity to a microbolometer focal plane array (MFPA), along with an alignment engine for aligning and bonding the PPA and MFPA and method for assembly.
Abstract:
The invention relates to an accurate and robust wavefront-division polarimetric analysis device, allowing the quasi-instantaneous measurement of the polarisation states of a luminous object. The wavefront-division polarimetric analysis device of the invention can be used to produce a plurality of light beams, all polarised according to different polarisation states, from a single upstream light beam. The polarised light beams, which do not overlap and which carry information items that are complementary in terms of polarisation, are analysed simultaneously by a plurality of detectors that measure the luminous intensity of each beam. Processing means digitally process the luminous intensity values obtained in order to determine the polarisation state of the upstream light beam. According to the invention, the operations performed by the processing means on the luminous intensity values prevent luminous intensity variations in the divided light beams during the division of the wavefront of the upstream light beam. Therefore the wavefront-division polarimetric analysis device of the invention is robust and its accuracy is not hindered by the experimental conditions. The invention further relates to a wavefront-division polarimetric analysis method for determining the polarisation state of an upstream light beam.