Multifunctional Raman spectrometer

Abstract

The invention is applicable to the technical field of spectrometers, and discloses a multifunctional Raman spectrometer which can simultaneously perform Raman spectrum and plasma spectrum analysis, on the basis of a Czerny-Turner light path structure, a reflecting mirror and a perforated reflecting mirror are additionally arranged to separate light before and after reflection, and meanwhile, the two concave reflecting mirrors are basically not deflected, so that the vertical heights of light spot focuses with different wavelengths on the image plane of a detector are reduced by 1 to 2 orders of magnitude, the sensitivity of the spectrometer is improved, meanwhile, the sizes of the light spot focuses with different wavelengths on the image plane of the detector in the horizontal direction are greatly reduced, and the resolution of the spectrometer is improved. Through the Raman spectrometer and a plasma luminescence spectrometer which are connected through a special optical fiber bundle, the analysis of the plasma luminescence spectrum can be realized.

Description

【Technical field】

[0001] The invention relates to a spectrometer, in particular to a multifunctional Raman spectrometer. 【Background technique】

[0002] Raman spectroscopy is a kind of scattering spectroscopy. Raman spectroscopy is based on the Raman scattering effect discovered by Indian scientist C.V. Raman (Raman). It analyzes the scattering spectrum different from the wavelength of the incident light to obtain molecular vibration and rotation information, and is applied to the study of molecular structure. a method of analysis. Because different molecules have specific vibration and rotation energy levels, when a certain wavelength of laser light scatters with a certain material molecule, some laser photons exchange energy with the material molecule. After an energy exchange occurs, the laser photon wavelength changes. Since the different vibration and rotation energy levels correspond to the change of the laser photon wavelength, the vibration or rotation energy leve...

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