Abstract:
Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.
Abstract:
The invention relates to a beam analysis device (10) for determining the axial position of the focal point (71) of an energy beam or a sample beam (70) decoupled from an energy beam, comprising a beam-shaping device (12), a detector (40), and an analysis device (45). The beam-shaping device (12) is designed to release two sub-beams (72, 73) from the sample beam (70) on a plane of the sub-beam release process (19). The cross-sections of the two sub-beams (72, 73) are defined by sub-apertures (32, 33) which are delimited from each other and which are arranged at a distance k to each other in a first lateral direction (31). The beam-shaping device (12) is designed to image the two sub-beams (72, 73) in order to form two beam spots (92, 93) on the detector and deflect at least one of the two sub-beams (72, 73) in a second lateral direction (37) which is oriented transversely to the first lateral direction (31) in order to form a distance w in the second lateral direction (37) between the two beam spots (92, 93). The analysis device (45) is designed to determine the distance a along the first lateral direction (31) between positions of the two beam spots (92, 93) on the detector (40) and to determine the axial position of the beam focus (71) on the basis of the distance a and/or to determine a change in the axial position of the beam focus (71) on the basis of a change in the distance a. The invention also relates to a corresponding method for determining the axial position of a beam focus (71).
Abstract:
Target devices for characterizing terahertz imaging systems are provided. The target devices include a terahertz resolution pattern having spatially distributed resolution features and one or more prism assemblies configured to provide a variable contrast level within the resolution features when used with terahertz radiation. Each prism assembly includes first and second prisms arranged in a Frustrated Total Internal Reflection (FTIR) configuration.
Abstract:
The present disclosure relates to systems, methods, and sensors configured to characterize a radiation beam. At least one embodiment relates to an optical system. The optical system includes an optical radiation guiding system. The optical radiation guiding system includes a collimator configured to collimate the radiation beam into a collimated radiation beam. The optical radiation guiding system also includes a beam shaper configured to distribute power of the collimated radiation beam over a discrete number of line shaped fields. A spectrum of the collimated radiation beam entering the beam shaper is delivered to each of the discrete number of line shaped fields. The optical system further includes a spectrometer chip. The spectrometer chip is configured to process the spectrum of the collimated radiation beam in each of the discrete number of line shaped fields coming from the beam shaper.
Abstract:
A light beam measurement device includes: a polarization measurement unit including a first measurement beam splitter provided on an optical path of a laser beam and configured to measure a polarization state of the laser beam having been partially reflected by the first measurement beam splitter; a beam profile measurement unit including a second measurement beam splitter provided on the optical path of the laser beam and configured to measure a beam profile of the laser beam having been partially reflected by the second measurement beam splitter; and a laser beam-directional stability measurement unit configured to measure a stability in a traveling direction of the laser beam, while the first measurement beam splitter and the second measurement beam splitter are made of a material containing CaF2.
Abstract:
A sensor arrangement with a silicon-based optical sensor, particularly color sensors for colorimetric applications is disclosed. The invention aims to find a novel possibility for suppressing interference ripples occurring in optical sensors when adding substrates with optically functional coatings which permits a simple production without complicated adaptation layers. The sensor passivation is composed of a combination of thin SiO2 layer in the range of 5 to 10 nm and an antireflection-matched Si3N4 layer and a substrate which carries at least one optical filter is arranged over the sensor passivation and connected to the sensor by means of an adhesive and forms an intermediate space between sensor surface and optical filter which is filled with an optical medium having a low refractive index (n2) and a height variation (Δh) over the associated sensor surface.
Abstract translation:公开了一种具有硅基光学传感器的传感器装置,特别是用于比色应用的彩色传感器。 本发明旨在找到一种新颖的可能性,用于在添加具有光学功能涂层的基底时抑制在光学传感器中发生的干扰波纹,这允许在没有复杂的适应层的情况下进行简单的生产。 传感器钝化由5至10nm范围内的薄SiO 2层和抗反射匹配Si 3 N 4层的组合以及承载至少一个滤光器的衬底组合在传感器钝化上并通过装置连接到传感器 并且在传感器表面和滤光器之间形成中间空间,该中间空间填充有在相关联的传感器表面上具有低折射率(n2)和高度变化(Δh)的光学介质。
Abstract:
The present disclosure relates to systems, methods, and sensors configured to characterize a radiation beam. At least one embodiment relates to an optical system. The optical system includes an optical radiation guiding system. The optical radiation guiding system includes a collimator configured to collimate the radiation beam into a collimated radiation beam. The optical radiation guiding system also includes a beam shaper configured to distribute power of the collimated radiation beam over a discrete number of line shaped fields. A spectrum of the collimated radiation beam entering the beam shaper is delivered to each of the discrete number of line shaped fields. The optical system further includes a spectrometer chip. The spectrometer chip is configured to process the spectrum of the collimated radiation beam in each of the discrete number of line shaped fields coming from the beam shaper.
Abstract:
Method for measuring shape of wavefront of optical radiation field generated by radiation source, includes: (a) setting diaphragm positions in pinhole diaphragm having diaphragm opening movable transversely to radiation source's optical axis, wherein a partial beam from radiation field passes through diaphragm opening at each diaphragm position and is imaged on optical sensor by imaging optics device; (b) recording lateral positions of partial beam relative to optical axis of imaging optics device, wherein lateral positions each with one of the diaphragm positions of pinhole diaphragm are recorded by optical sensor, and determining the shape of wavefront from recorded lateral positions of partial beam, wherein beam incidence range of the partial beam which is invariable for all diaphragm positions is set on imaging optics device with a pentaprism arrangement including at least first pentaprism and positioned between pinhole diaphragm and imaging optics device. A wavefront shape measuring device is also described.
Abstract:
Disclosure is related to a sensing module and a Laser device using the sensing module. The sensing module is adapted to a Laser module. The sensing module essentially includes a beam splitter and a photo sensor. This beam splitter is disposed at an optical-axis path of laser beam. The splitter is used to split the laser beam into a transmissive beam and a reflective beam. The photo sensor however is disposed apart from the optical-axis path of the original laser beam. The photo sensor converts the sensed photo signals into electrical signals which are as feedback signals to the laser module.