A light modulation device and a single-channel spectrum detection system are provided. The light modulation device includes: a light guide plate; a dispersing component configured to disperse received light into light of different wavelengths and to diffract the light of different wavelengths into the light guide plate at different angles; and a dynamic filtering component configured to prevent light of a selected wavelength in the light guide plate from entering the dynamic filtering component such that the light of the selected wavelength emits out from the light guide plate, and to make light of non-selected wavelengths in the light guide plate enter the dynamic filtering component such that the light of the non-selected wavelengths is filtered out from the light guide plate.

An optical device and a spectral detection apparatus are provided. The optical device includes an optical waveguide, including: a polychromatic light channel configured to transport a polychromatic light beam, and provided with a light incident surface for receiving the incident polychromatic light beam at an input end of the polychromatic light channel; a chromatic dispersion device arranged downstream from the polychromatic light channel in an optical path and configured to separate the polychromatic light beam from the polychromatic light channel into a plurality of monochromatic light beams; and a plurality of monochromatic light channels arranged downstream from the chromatic dispersion device in the optical path and configured to respectively conduct the plurality of monochromatic light beams with different colors from the chromatic dispersion device. Monochromatic light output surfaces are respectively provided at output ends of the plurality of monochromatic light channels and configured to output the monochromatic light beams.

A system and method are provided for spectral shaping of light from a broadband source using a linear spatial light modulator (SLM). The system includes an illumination source generating light including a plurality of wavelengths, a lens to collimate the light and an aperture to define its angular spread, a diffraction grating to disperse the beam by wavelength, and a focusing element to focus the dispersed beams from the diffraction grating onto a plurality of pixels of the SLM. The SLM is configured to individually modulate the dispersed beams by diffracting light output therefrom into higher orders, where a diffraction angle of output light is greater than an input cone angle of incoming light from the illumination source.

A polychromator includes a substrate and a functional element having an optical spectral decomposition action. The functional element having an optical spectral decomposition action is configured to spectrally decompose electromagnetic radiation originating from an entry opening, e.g. light which originates from an optional radiation source and is reflected at a sample, so that a spectrally decomposed spectrum is obtained, and to image the spectrally decomposed spectrum onto a spatial area of the substrate. The substrate includes at least two transparent zones at different positions within the spatial area, so that two different spectral components of the spectrums are detectable at the two transparent zones.

A system for illuminating a sample with a spectrally filtered illumination source includes an illumination source configured to generate a beam of illumination having a first set of wavelengths. In addition, the system includes a wavelength filtering sub-system, a sample stage, an illumination sub-system, a detector, and an objective to focus illumination from the surface of one or more samples and focus the collected illumination to the detector. Further, the wavelength filtering sub-system includes one or more first dispersive elements positioned to introduce spatial dispersion into the beam, a spatial filter element, and one or more dispersive elements positioned to remove spatial dispersion from the beam. The spatial filter element is further positioned to pass at least a portion of the beam including a second set of wavelengths, wherein the second set of wavelengths is a subset of the first set of wavelengths.

Dual laser frequency combs can rapidly measure high resolution linear absorption spectra. However, one-dimensional linear techniques cannot distinguish the sources of resonances in a mixture of different analytes, nor separate inhomogeneous and homogeneous broadening. These limitations are overcome by acquiring high resolution multi-dimensional non-linear coherent spectra with frequency combs.

A photonic integrated circuit including an input for receiving input electromagnetic radiation having a bandwidth greater than 60 nm; a spectral splitter splitting the electromagnetic radiation into a plurality of spectral channels; a modulator for modulating an amplitude and a phase of one or more of the spectral channels so as to form modulated outputs; and a spectral recombiner for combining the modulated outputs into a single output port outputting output electromagnetic radiation having the desired output spectral intensity profile shaped by and synthesized from the modulated outputs.

An analyser 10 for identifying or verifying or otherwise characterising a liquid based drug sample 16 comprising: an electromagnetic radiation source 11 for emitting electromagnetic radiation 14a in at least one beam at a sample 16, the electromagnetic radiation comprising at least two different wavelengths, a sample detector 17 that detects affected electromagnetic radiation resulting from the emitted electromagnetic radiation affected by the sample, and a processor 18 for identifying or verifying the sample from the detected affected electromagnetic radiation, wherein each wavelength or at least two of the wavelengths is between substantially 1300 nm and 2000 nm, and each wavelength or at least two of the wavelengths is in the vicinity of the wavelength(s) of (or within a region spanning) a spectral characteristic in the liquid spectrum between substantially 1300 nm and 2000 nm.

The invention relates to an apparatus for generating light, comprising a plurality of light sources (1), a control device (2), which drives the light sources (1), and a superimposition optical unit, which superimposes the light emitted by the light sources (1) in an exit opening (3). It is an object of the invention to provide an apparatus which is improved compared with the prior art. For this purpose, the invention proposes that the superimposition optical unit comprises a first concave mirror (4), in the focal plane of which the light sources (1) are situated, an optical grating (5), onto which the first concave mirror (4) reflects the light (6) emitted by the light sources (1), and a second concave mirror (7), which reflects the light (8) diffracted at the optical grating (5) onto the exit opening (3) situated at the focus of the second concave mirror (7).

An analyser 10 for identifying or verifying or otherwise characterising a liquid based drug sample 16 comprising: an electromagnetic radiation source 11 for emitting electromagnetic radiation 14a in at least one beam at a sample 16, the electromagnetic radiation comprising at least two different wavelengths, a sample detector 17 that detects affected electromagnetic radiation resulting from the emitted electromagnetic radiation affected by the sample, and a processor 18 for identifying or verifying the sample from the detected affected electromagnetic radiation, wherein each wavelength or at least two of the wavelengths is between substantially 1300 nm and 2000 nm, and each wavelength or at least two of the wavelengths is in the vicinity of the wavelength(s) of (or within a region spanning) a spectral characteristic in the liquid spectrum between substantially 1300 nm and 2000 nm.