Time-resolved Raman spectrum equipment
A Raman spectroscopy and time-resolved technology, applied in the field of time-resolved Raman spectroscopy equipment, can solve the problems of short lifespan of transient substances, inability to measure transient substances, and inability to obtain time-resolved Raman spectra.
Active Publication Date: 2018-10-23
NORTHWEST UNIV(CN)
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Problems solved by technology
[0004] In order to solve the above-mentioned problems that the existing Raman spectroscopy equipment cannot measure transient substances and obtain time-resolved Raman spectra, the present invention aims to provide a time-resolved Raman spectroscopy equipment
[0006] The present invention controls the time before and after the first laser and the second laser act on the sample through the delay generator, and solves the detection problem caused by the short life of the transient substance
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[0023] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.
[0024] Such as figure 1 As shown, the time-resolved Raman spectroscopy device according to the present invention includes a laser system 1 , a sample system 2 and a collection system 3 , wherein the laser light emitted by the laser system 1 acts on the sample of the sample system 2 and then is measured through the collection system 3 .
[0025] Such as figure 1 As shown, the laser system 1 includes a relatively independent first laser component 11 and a second laser component 12, which respectively emit a first laser and a second laser to act on the sample. The first laser assembly 11 includes a first laser 111, a first upper prism 112, a first lower prism 113, a first lens 114 and a first reflector 115, wherein the first laser emitted by the first laser 111 is called pump laser , which first changes the direction of the optical path through the ...
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The invention relates to time-resolved Raman spectrum equipment. The time-resolved Raman spectrum equipment comprises a sample system, a laser system and a collecting system, wherein the sample systemis used for providing a flowing stable liquid column; the laser system is provided with a first laser assembly for emitting a first laser to act on the stable liquid column to produce a transient substance, and a second laser assembly for emitting a second laser to act on a transient substance to produce Raman scattering light; the first laser assembly is connected with the second laser assemblyby a delay generator; the collecting system is provided with a first focusing mirror for aligning the Raman scattering light, a second focusing mirror for focusing the aligned Raman scattering light,and a detector for detecting the focused Raman scattering light. The time-resolved Raman spectrum equipment can be used for detecting the Raman scattering of the instantaneous substance with lower quantum efficiency, and the dynamics experiment can be performed, so as to obtain the time-resolved Raman spectrum.
Description
technical field [0001] The present invention relates to Raman spectroscopy equipment, more particularly to a time-resolved Raman spectroscopy equipment. Background technique [0002] Raman spectroscopy is a kind of scattering spectrum, which is a powerful method to study the microstructure of matter. Existing Raman spectroscopy equipment is used to measure the Raman spectrum of steady-state substances, and cannot measure the Raman spectrum of transient substances, nor can it perform time-resolved experiments. [0003] The so-called stable substances refer to substances that can exist stably under normal conditions (for example: normal temperature, normal pressure, etc.), such as chemical substances such as sodium nitrate and potassium nitrate. The so-called transient substances refer to substances that cannot exist stably under normal conditions, but within a very short time range (such as nanoseconds (10 -9 s) or microseconds (10 -6 s) etc.) substances that can exist, su...
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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 马佳妮郭燕
Owner NORTHWEST UNIV(CN)