A night hyper-spectral remote sensing imaging system for multi-component atmospheric trace constituents includes a light source unit, a detection light path unit, an unmanned aerial vehicle tracking light path unit, and a control and processing unit, where the light source unit couples and outputs first light source light with different wavelength ranges capable of imaging at night; the detection light path unit collimates and outputs the first light source light, and receive remote sensing light fed back based on the first light source light; the unmanned aerial vehicle tracking light path unit tracks and positions an unmanned aerial vehicle based on an unmanned aerial vehicle tracking light path; and the control and processing unit collects an original spectrum of the first light source light and a remote sensing spectrum and perform imaging analysis and process on the multi-component atmospheric trace constituents, and adjust and control the tracking light path.

A fluorescence hyperspectral microscopy system featuring structured illumination and parallel recording includes a light projection sub-system, a detection sub-system, and an electrical controller. The light projection sub-system includes a digital light processing (DLP) module for generating linear excitation light, a first lens set, an optical path allocation element, and an objective lens. The detection sub-system includes a second lens set, a frequency-dividing reflection element, a two-dimensional light detector, and a light collection element. With the detection sub-system performing detection in conjunction with the light projection sub-system, and the electrical controller controlling the DLP module, a two-dimensional moving platform, and the two-dimensional light detector, the fluorescence hyperspectral microscopy system provides increased resolution and can obtain accurate information in spatial and spectral dimensions and hence a four-dimensional hyperspectral image of the object under detection.

A luminescence spectroscopy apparatus for time-resolved characterization of a sample emitting circularly polarized light is described, comprising a pulsed laser excitation source configured to generate a laser pulse for exciting the sample, an achromatic quarter-wave plate arranged to receive therethrough light emitted by the sample, a polarization beam splitter arranged downstream to the quarter-wave plate, an optical spectrometer arranged downstream to the polarization beam splitter, a time-gated intensified charge-coupled device arranged to receive light from the optical spectrometer and comprising an image intensifier, and a controller configured to control a pulse generator to apply a gate pulse to the image intensifier for selectively activating the image intensifier, wherein the controller is connected to the pulsed laser excitation source such that the gate pulse is triggerable by the laser pulse of the pulsed laser excitation source.

An optical filter structure of an arbitrary combination of UV, R, G, B, and IR includes a substrate and a filter layer. The substrate is a wafer semiconductor sensor device and a product of light-transmitting device. The filter layer is formed on a surface of the substrate and is formed of a plurality of basic units arranged in an array. Each of the basic units includes a plurality of pixel filter films formed through vacuum coating, and the plurality of pixel filter films include an arbitrary combination of multiple ones of a UV pixel filter film, an R pixel filter film, a G pixel filter film, a B pixel filter film, and an IR pixel filter film, such that the plurality of pixel filter films allow light of corresponding wavelengths to pass therethrough.

According to an aspect of the present inventive concept there is provided a device for polarization dependent imaging, comprising a detector comprising an array of light sensitive elements; a plurality of light propagating units, each comprising: a funnel element having a collecting end and a transmitting end, the funnel element being configured to collect light at the collecting end and propagate the light to the transmitting end; a waveguide having a receiving end and a distributing end, the waveguide being configured to receive the light from the transmitting end at the receiving end and propagate the light to the distributing end, wherein the waveguide is configured to propagate the light through the waveguide in dependence of polarization such that a distribution of the light at different locations of the distributing end is dependent on polarization of the light.