Abstract:
An in-situ on-line detection device and detection method for a long-distance metallurgical liquid metal component. The detection device comprises a front-end high-temperature resistant probe (18), a middle-end optical sensing device (19) and a back-end control platform (24), wherein the head of the front-end high-temperature resistant probe (18) is placed in a liquid metal (22), the tail thereof is coaxially connected to the middle-end optical sensing device (19), and an optical window (15) is arranged in the connection position; and the middle-end optical sensing device (19) is connected to the back-end control platform (24) through a signal line (25). The detection device and detection method can provide a timely and valid message for quality control and a melting end, so that the detection time is greatly shortened, the detection distance can be adjusted extensively, the measurement result is accurate, and it can be achieved to measure components that are difficult to measure, such as C, S, P, etc.
Abstract:
An apparatus for obtaining information regarding a biological structure(s) can include, for example a light guiding arrangement which can include a fiber through which an electromagnetic radiation(s) can be propagated, where the electromagnetic radiation can be provided to or from the structure. An at least partially reflective arrangement can have multiple surfaces, where the reflecting arrangement can be situated with respect to the optical arrangement such that the surfaces thereof each can receive a(s) beam of the electromagnetic radiations instantaneously, and a receiving arrangement(s) which can be configured to receive the reflected radiation from the surfaces which include speckle patterns.
Abstract:
Polarization selective surface enhanced Raman spectroscopy (SERS) includes a plurality of nanofingers arranged as a SERS multimer to exhibit a polarization-dependent plasmonic mode and one or both of a stimulus source and a Raman detector. The stimulus source is to illuminate the SERS multimer with a stimulus signal and the Raman detector is to detect a Raman scattering signal emitted by an analyte in a vicinity of the SERS multimer. One or both of the Raman scattering signal has a polarization state dictated by or associated with the polarization-dependent plasmonic mode and the stimulus signal has a polarization state corresponding to the polarization-dependent plasmonic mode.
Abstract:
A fluorescence microscope includes a nearly monochromatic light source, a Brewster angle wedge, and an optical system for irradiating a sample with a light beam from the light source and directing fluorescence light from said sample onto the Brewster angle wedge. Collection optics are provided for focusing a hyper-spectral, wide angle and dark field image of the sample from the Brewster angle wedge onto recording optics.
Abstract:
A fluorescence microscope includes a nearly monochromatic light source, a Brewster angle wedge, and an optical system for irradiating a sample with a light beam from the light source and directing fluorescence light from said sample onto the Brewster angle wedge. Collection optics are provided for focusing a hyper-spectral, wide angle and dark field image of the sample from the Brewster angle wedge onto recording optics.
Abstract:
Second harmonic generation (SHG) is a nonlinear optical process which may be configured as a surface-selective detection technique that enables detection of binding interactions and conformational change in proteins and other biological targets using second harmonic-active labels attached to the target molecules. Methods, devices, and systems are disclosed for determining protein structure and dynamics using second harmonic generation (SHG) and related surface-selective nonlinear optical techniques.
Abstract:
Selon un aspect, l'invention concerne un dispositif de caractérisation polarimétrique déportée (100) d'un échantillon (S). Il comprend une source d'émission (10) d'au moins une onde lumineuse incidente à au moins une première longueur d'onde (λ Ε ); une fibre optique monomode (30) dans laquelle l'onde lumineuse incidente est destinée à se propager; un générateur d'états de polarisation (PSG) agencé du côté proximal de la fibre optique; un réflecteur (40) destiné à être agencé du côté distal de la fibre optique; un analyseur d'états de polarisation (PSA) agencé du côté proximal de la fibre optique et permettant, pour chaque état sonde de l'onde incidente généré par le générateur d'états de polarisation, l'analyse de la polarisation de l'onde lumineuse obtenue après propagation de l'onde incidente dans la fibre optique (30), réflexion du côté distal de la fibre optique et propagation inverse dans la fibre optique (30). Des moyens de traitement (70) permettent, à partir d'une première caractérisation polarimétrique de la fibre optique, de déterminer une matrice de Mueller (M F ) associée à la fibre optique et, à partir d'une deuxième caractérisation polarimétrique de l'ensemble comprenant la fibre optique et l'échantillon, une matrice de Mueller (Μ T ) associée audit ensemble. La matrice de Mueller (M o ) associée à l'échantillon est déterminée à partir des matrices de Mueller associées respectivement à la fibre optique et à l'ensemble comprenant la fibre optique et l'échantillon.