A Raman spectrum detection head and detection method
A technology of Raman spectrum detection and Raman scattering, which is applied in the field of Raman spectrum detection head and detection, can solve the problem of inconvenient movement of the detection device, and achieve the effect of high application value
Active Publication Date: 2017-06-16
CHINA AGRI UNIV
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Problems solved by technology
[0005] The invention provides a Raman spectrum detection head and a detection method to solve the technical problem that the Raman technology in the prior art can only perform point spectrum detection, and the detection device is not easy to move
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[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0040] Embodiments of the present invention firstly provide a Raman spectrum detection head, see figure 1 , including: a light shield 1, the light shield 1 includes a slit 2 and a detection mirror 3, the slit 2 is used to let the Raman scattered light go out to the sample 4, and let the signal light generated on the surface of the sample 4 enter, ...
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The invention provides a Raman spectrum detection head and a detection method, comprising: a light hood, the light hood includes a slit and a detection mirror, the slit is used to let the Raman scattered light emit to the sample, and let the signal light generated on the surface of the sample emit In, the detection mirror is used to emit signal light; the hood also includes: laser line light source, used to emit linear laser light; filter filter, used to filter Rayleigh scattered light in the linear laser, and the remaining Raman scattered light ; The beam splitting filter is used to reflect the Raman scattered light to the scanning mirror, and the signal light reflected back by the scanning mirror is emitted through the detection mirror; the scanning mirror, the scanning mirror is reflected through the beam splitting filter by reciprocating vibration Reflected Raman scattered light, to obtain uniform linear Raman scattered light, make it exit to the sample surface through the slit, and reflect the Raman detection signal light generated by the sample surface incident through the slit to the beam splitter filter. The invention can perform fast moving detection and signal collection on samples.
Description
technical field [0001] The invention relates to the field of optical detection, in particular to a Raman spectrum detection head and a detection method. Background technique [0002] Raman scattering is the scattering of frequency changes caused by the interaction between incident light and molecular motion when light passes through a medium. Raman spectroscopy is often used to characterize the structural characteristics of molecules, also known as the "fingerprint" of molecules. The analysis methods of Raman spectroscopy mainly include techniques such as Fourier transform, high temperature, resonance, surface enhancement, confocal microscopy, and solid-state photoacoustics. Raman spectroscopy has a wide range of applications in many fields, especially it can provide fast, simple, non-destructive, repeatable qualitative and quantitative analysis techniques, without cumbersome pretreatment steps, avoiding damage to samples, and achieving screening speed Speed up. Of cours...
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IPC IPC(8): G01N21/01G01N21/65
Inventor 彭彦昆赵娟
Owner CHINA AGRI UNIV