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Multifunctional Raman spectrometer

A Raman spectrometer, multifunctional technology, applied in the field of spectrometer

Inactive Publication Date: 2021-05-11
QILU UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, few instruments are capable of simultaneous Raman spectroscopy and plasma spectroscopy

Method used

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  • Multifunctional Raman spectrometer

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Embodiments of the present invention, devices such as figure 1 Shown: laser 1, first lens 2, first fiber end face 3, second fiber end face 4, second lens 5, third lens 6, detection point 7, third fiber end face 8, slit 9, first reflection Mirror 10, first concave mirror 11, filter 12, first grating 13, second mirror 14, hole 15, second concave mirror 16, first photosensitive surface 17, fourth fiber end face 22, third A concave reflector 23 , a second grating 24 , a prism 25 , a fourth concave reflector 26 , and a second photosensitive surface 27 . The laser light emitted from the laser 1 is focused by the first lens 2 and enters the first fiber end face 3, then passes through the second fiber end face 4, is collimated by the second lens 5, and then focused on the detection point 7 by the third lens 6. The Raman light generated after the gas is...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01N21/73
CPCG01N21/65G01N21/73
Inventor 王守国蒋霖坤
Owner QILU UNIV OF TECH
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