Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer

A spectrometer and laser technology, applied in the field of Raman spectroscopy, can solve the problems of narrow spectral band range, huge volume, limited types of substances to be measured, etc., and achieve the effect of broadening the spectral detection band range and detection substance range, and reducing the overall volume.

Active Publication Date: 2012-07-25
NCS TESTING TECH
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Problems solved by technology

At present, the equipment that uses Raman scattering technology to study microscopic substances mainly includes confocal Raman spectrometers with relatively high sensitivity combined with confocal mi

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  • Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer
  • Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer
  • Confocal raman spectrometer and treatment method for laser path of confocal raman spectrometer

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the confocal Raman spectrometer in the present invention includes a laser, a laser transmission device, a continuously adjustable laser attenuation device, a video and optical path switching device, a microscopic device, an edge filter switching device, a signal confocal device and a spectral detection device, in which:

[0031] The laser includes a first laser 10, a second laser 11 and a third laser 12 arranged in parallel up and down, the three lasers are fixed side by side on the support 2, and the support 2 is further fixed on the housing support of the confocal Raman spectrometer 1, the three lasers are fixedly installed on one side of the shell bracket 1 of the confocal Raman spectrometer, and after being combined with the outer shell, the three lasers are enclosed in an independent box, suc...

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Abstract

The invention relates to a confocal raman spectrometer and a treatment method for a laser path of the confocal raman spectrometer. The treatment method comprises the steps that: one laser is selected to emit laser light which enters a laser transmission device, the laser light is transmitted to a continuously adjustable laser attenuator by using a group of reflectors in a laser switching device in the laser transmission device, corresponding to the laser, the intensity of the laser light is attenuated, the laser light treated by the continuously adjustable laser attenuator is reflected to an edge light filter switching device, the laser light is reflected by the edge light filter switching device and irradiates a substance to be detected on a substance stage of a microscope device through an objective lens of the microscope device, raman signals, rayleigh scattering light and laser light generated by the substance to be detected after being excited by the laser light are collected by the objective lens of the microscope device and return to the edge light filter switching device; an edge light filter filters out the rayleigh scattering light and the laser light and leaves the raman signals, and finally, the raman signals form a raman spectrum through a signal confocal device and a spectrum detection device.

Description

technical field [0001] The present invention relates to a Raman spectroscopy technology, more specifically, to a confocal Raman spectrometer with better monitoring effect and a processing method for the laser light path in the confocal Raman spectrometer. Background technique [0002] Light interacts with matter in many ways, and scattering is one of them. In light scattering, the frequency of scattered light is different from that of incident light, which is called inelastic scattering, also known as Raman scattering. Raman spectroscopy is a spectroscopic technique based on Raman scattering. In Raman spectroscopy, the difference in frequency between scattered light and incident light is called Raman shift. Studying Raman shift can obtain the vibration and rotation information of chemical bonds in molecules, as well as the vibration information of crystal lattices in crystals, so Raman Spectroscopy is an important spectroscopic technique for studying the microstructure of ...

Claims

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Application Information

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IPC IPC(8): G01N21/65
Inventor 江洋沈斌刘志丰潘瑞丰杨志强
Owner NCS TESTING TECH
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