Abstract in simplified Chinese:本发明揭示一种度量系统,其包含:一照明源,其用于产生一照明光束;一多信道光谱滤波器;一聚焦组件,其用于将照明自单一光学柱导引至一样本;及至少一侦测器,其用于截取自该样本收集之照明。该多信道光谱滤波器包含具有两个或两个以上信道光束路径之两个或两个以上滤波信道。该两个或两个以上滤波信道基于两个或两个以上光谱透射率分布来过滤沿该两个或两个以上信道光束路径传播之照明。该多信道光学滤波器进一步包含用于将该照明光束之至少一部分导引至至少一选定滤波信道中以过滤该照明光束之一信道选择器。该多信道光谱滤波器进一步包含用于将来自该两个或两个以上滤波信道之照明组合成一单一光学柱之至少一光束组合器。
Abstract:
Provided are a dual coupler device configured to receive lights of different polarization components, a spectrometer including the dual coupler device, and a non-invasive biometric sensor including the spectrometer. The dual coupler device may include, for example, a first coupler layer configured to receive a light of a first polarization component among incident lights. and a second coupler layer configured to receive a light of a second polarization component among the incident lights, wherein a polarization direction of the light of the first polarization component is perpendicular to a polarization direction of the light of the second polarization component. The first coupler layer and the second coupler layer may be spaced apart from each other and extended along a direction in which the light propagates in the first coupler layer and the second coupler layer.
Abstract:
An imaging system uses polarized light to illuminate the target and then uses a polarization filter to remove the light that is reflected from the target without modification. The target can include one or more anisotropic objects that scatter the light and alter the polarization state of the reflected light and causing it to be selectively transmitted to the imaging device which can record the transmitted light through the filter. The illuminating light can be circularly polarized and the filter can remove the circularly polarized light. The target can include asymmetric nanoparticles, such as nanorods that alter the amplitude or phase of the scattered light enabling pass through the filter to be detected by the imaging device.
Abstract:
A floating particle detection device 1 is capable of accurately identifying the type of a floating particle while achieving simplification of a configuration of the device, the device includes: a laser light irradiator (10) that includes a laser light emitting element (11) and a back-monitor-use light receiving element (12); a scattered light receiver (20) that selectively receives light of a predetermined polarization component among scattered light generated when a floating particle (50) is irradiated and that generates a second detection signal; and an identification processor (30) that identifies the type of the floating particle on the basis of a first detection signal and the second detection signal. Incident light entering the back-monitor-use light receiving element (12) includes: a back-monitor-use laser beam (L0); and backscattered light (Lbs) travelling toward the laser light irradiator (10) among the scattered light (Ls) of an irradiation laser beam (L1) with which the floating particle (50) is irradiated.
Abstract:
System and method for determining a viscoelastic modulus of a sample with the use of optical data and an average size of light-scattering particles, of such sample, that has been derived from the optical data in reliance of angular dependence of a radiant flux profile determined from laser speckles formed by the sample and, in required, on a refractive index mismatch between light-scattering particles and sample medium hosting such particles. The determination is optionally carried out by taking into account at least one of absorption coefficient and reduced scattering coefficient of the sample, which are also determined from the same optical data. Laser speckle may be formed for different combinations of polarization states of sample- illuminating light and detected light and/or different wavelengths to account for polydisperse nature of the sample.
Abstract:
The present disclosure generally relates to a device and a method for alignment. The alignment device provides optical architecture to align the alignment device to an analyte and measure the optical properties of an analyte. The method for alignment provides steps for aligning an optical measurement device to an analyte.