Abstract: Raman spectroscopy methods and devices are disclosed. The method includes irradiation of excitation radiation onto a sample to be examined. The sample is irradiated with a first excitation radiation of a first excitation wavelength and a different second excitation radiation of a second excitation wavelength. The first excitation radiation scattered by the sample is wavelength-selective filtered by means of a passive filter element. A transmitted filter wavelength of the filter element differs from at least the first excitation wavelength and the second excitation wavelength. A first intensity is determined through a single-channel detector assigned to the filter wavelength from the first excitation radiation scattered and filtered by the sample. Additionally, the filter element wavelength-selective filters the second excitation radiation scattered by the sample.

Abstract: Raman spectroscopy methods and devices are disclosed. The method includes irradiation of excitation radiation onto a sample to be examined. The sample is irradiated with a first excitation radiation of a first excitation wavelength and a different second excitation radiation of a second excitation wavelength. The first excitation radiation scattered by the sample is wavelength-selective filtered by means of a passive filter element. A transmitted filter wavelength of the filter element differs from at least the first excitation wavelength and the second excitation wavelength. A first intensity is determined through a single-channel detector assigned to the filter wavelength from the first excitation radiation scattered and filtered by the sample. Additionally, the filter element wavelength-selective filters the second excitation radiation scattered by the sample.

Abstract: Optical systems and methods for spectroscopy are described. The optical system may be particularly suitable for Raman spectroscopy and includes a multispectral excitation source, designed to emit monochromatic excitation radiation successively at at least two different excitation wavelengths along a common beam axis; an elongated flow volume with a longitudinal axis, designed to direct a particle flow along the longitudinal axis; an excitation beam path, designed to irradiate the monochromatic excitation radiation into the flow volume at a first position and the second position that are located in the flow volume and the first position is spaced apart from the second position; and a detection device, designed to wavelength-selectively filter and detect a portion of a radiation scattered from the first position at a first filter wavelength and to wavelength-selectively filter and detect a portion of a radiation scattered from the second position at a second filter wavelength.

Abstract: Optical systems and methods for spectroscopy are described. The optical system may be particularly suitable for Raman spectroscopy and includes a multispectral excitation source, designed to emit monochromatic excitation radiation successively at at least two different excitation wavelengths along a common beam axis; an elongated flow volume with a longitudinal axis, designed to direct a particle flow along the longitudinal axis; an excitation beam path, designed to irradiate the monochromatic excitation radiation into the flow volume at a first position and the second position that are located in the flow volume and the first position is spaced apart from the second position; and a detection device, designed to wavelength-selectively filter and detect a portion of a radiation scattered from the first position at a first filter wavelength and to wavelength-selectively filter and detect a portion of a radiation scattered from the second position at a second filter wavelength.

Abstract: A device (122) is described having an arrangement of optical elements comprising excitation light sources (101, 115) for generating individual light beams (102, 116) having different wavelengths for exciting a sample in such a way that light scattered back from the sample as a result of the excitation is made available to a Raman spectroscopic analysis. The device (122) has deflection devices (103, 117) associated with the individual light beams (102, 116) for deflecting the individual light beams (102, 116) onto a common light path, wherein the common light path has a same optical system (109) for focusing the light beams (102, 116).

Abstract: The invention relates to a device (122) having an arrangement of optical elements comprising excitation light sources (101, 115) for generating individual light beams (102, 116) having different wavelengths for exciting a sample in such a way that light scattered back from the sample as a result of the excitation is made available to a Raman spectroscopic analysis. The device (122) comprises deflection devices (103, 117) associated with the individual light beams (102, 116) for deflecting the individual light beams (102, 116) onto a common light path, wherein the common light path comprises a same optical system (109) for focusing the light beams (102, 116).

Abstract: The invention relates to an optical bank (1) comprising a carrier (10) for receiving optical components (60, 70) and a crystal (30) that is mechanically connected to the carrier, for changing the frequency of the light irradiated into the crystal (30) from a light source (50). Two rails (12) are arranged essentially in parallel on the carrier (10). The crystal (30) and the carrier (10) are mechanically connected by a surface of the rails (12), facing away from the carrier (10). A heat conducting element (20) is arranged on the crystal, said heat conducting element being applied to the surfaces of the rails (12), that face away from the carrier (10).

Abstract: A method and a device for generating and for detecting a Raman spectrum enables an automated, or automatable, and at the same time quantitative SERD spectroscopy (for example concentration measurement series). To this end, during the SERD spectroscopy, a first spectrum and a second spectrum are standardized in relation to one another in terms of intensity values and a first difference spectrum is subsequently calculated, a second difference spectrum is calculated, the first difference spectrum is converted into a first transformation spectrum, the second difference spectrum is converted into a second transformation spectrum, and the Raman spectrum is calculated by adding the first transformation spectrum and the second transformation spectrum.

Abstract: A method and a device for generating and for detecting a Raman spectrum enables an automated, or automatable, and at the same time quantitative SERD spectroscopy (for example concentration measurement series). To this end, during the SERD spectroscopy, a first spectrum and a second spectrum are standardized in relation to one another in terms of intensity values and a first difference spectrum is subsequently calculated, a second difference spectrum is calculated, the first difference spectrum is converted into a first transformation spectrum, the second difference spectrum is converted into a second transformation spectrum, and the Raman spectrum is calculated by adding the first transformation spectrum and the second transformation spectrum.

Abstract: The invention relates to an optical bank (1) comprising a carrier (10) for receiving optical components (60, 70) and a crystal (30) that is mechanically connected to the carrier, for changing the frequency of the light irradiated into the crystal (30) from a light source (50). Two rails (12) are arranged essentially in parallel on the carrier (10). The crystal (30) and the carrier (10) are mechanically connected by a surface of the rails (12), facing away from the carrier (10). A heat conducting element (20) is arranged on the crystal, said heat conducting element being applied to the surfaces of the rails (12), that face away from the carrier (10).

Abstract: The invention relates to a method and a device for producing and detecting a Raman spectrum. The problem addressed by the present invention is that of devising a method and a device for producing and detecting a Raman spectrum of a medium under investigation, whereby the Raman spectrum of a medium that is under investigation can be examined with a high degree of sensitivity while requiring relatively little equipment.

Abstract: The invention relates to a method and a device for producing and detecting a Raman spectrum. The problem addressed by the present invention is that of devising a method and a device for producing and detecting a Raman spectrum of a medium under investigation, whereby the Raman spectrum of a medium that is under investigation can be examined with a high degree of sensitivity while requiring relatively little equipment.