CN211553759U - Raman-fluorescence-laser induced breakdown spectroscopy combined system - Google Patents
Raman-fluorescence-laser induced breakdown spectroscopy combined system Download PDFInfo
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- CN211553759U CN211553759U CN202020190420.1U CN202020190420U CN211553759U CN 211553759 U CN211553759 U CN 211553759U CN 202020190420 U CN202020190420 U CN 202020190420U CN 211553759 U CN211553759 U CN 211553759U
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Abstract
The utility model relates to a raman-fluorescence-laser induced breakdown spectroscopy combined system. It includes: the laser comprises a first laser, a second laser, a third laser, a reflecting mirror, a dichroic mirror, a spectroscope, an achromatic objective lens, a first lens and a second lens; the laser light path, the Raman light path and the fluorescence light path are formed, the laser light path, the Raman light path and the fluorescence light path act on a detection sample, and reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope, the dichroic mirror, the first lens and the filter plate to reach a spectrometer for spectrum collection; the reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope and the second lens to be imaged on a charge-coupled device image sensor (CCD). The limitation of independent detection of the replacement equipment is overcome through the laser light path, the Raman light path and the fluorescence light path, multiple kinds of spectral information are collected simultaneously through the combined system, comprehensive characterization analysis of components of a detection sample is completed, and the detection efficiency is improved.
Description
Technical Field
The utility model relates to a raman-fluorescence-laser induced breakdown spectroscopy combined system.
Background
The Laser Induced Breakdown Spectroscopy (LIBS) technique is an emission spectrum generated by the ionization of sample atoms at high temperature, and is a spectroscopic technique for analyzing the elemental composition and content of a substance. LIBS has the advantages of rapidness, real-time online monitoring, high sensitivity, capability of detecting all kinds of elements, small damage to samples and the like, so LIBS is widely applied to multiple fields such as biomedicine, material component online detection, space exploration, military explosive detection, cultural relic identification and the like. However, in the case of a slight loss of the sample detection position, only the substance element information can be detected.
Raman spectroscopy (Raman) is a scattering spectroscopy technique for analyzing scattered light having a frequency different from that of incident light to obtain information on molecular vibration and rotation, and is used for molecular structure research. The Raman spectrum technology has the unique advantages of rich information, simple sample preparation, small water interference and the like, and has wide application in the fields of chemistry, materials, physics, macromolecules, biology, medicine, geology and the like. However, the raman signal is weak and can only be used for detecting molecular components.
The fluorescence spectrum technology is a spectrum technology for generating long-wave radiation (fluorescence) by exciting a substance through short wave, organic related components in the substance can be obtained through wave packet or wave crest analysis in the fluorescence spectrum, and the sensitivity is high. However, fluorescence spectroscopy can only detect biological components and organic matter.
At present, different devices need to be replaced for complete analysis of complex substances, and the mode reduces the working efficiency and is not beneficial to long-term development.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a combined system of Raman-fluorescence-laser induced breakdown spectroscopy, so as to solve the problems. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
A combined raman-fluorescence-laser induced breakdown spectroscopy system comprising: the laser comprises a first laser, a second laser, a third laser, a reflecting mirror, a dichroic mirror, a spectroscope, an achromatic objective lens, a first lens and a second lens; the first laser, the reflecting mirror, the dichroic mirror, the spectroscope and the achromatic objective form a laser light path; the second laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective form a Raman light path; the third laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective constitute a fluorescence light path; the laser light path, the Raman light path and the fluorescence light path act on a detection sample, and reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope, the dichroic mirror, the first lens and the filter plate to the spectrometer for spectrum collection; and the reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope and the second lens to be imaged on a charge-coupled device image sensor (CCD).
Optionally, a shutter control box, a first shutter, a second shutter and a third shutter are also included; the shutter control box respectively controls the first shutter, the second shutter and the third shutter to act; the first shutter is arranged in an optical path between the first laser and the reflector; the second shutter is arranged in an optical path between the second laser and the first lens; the third shutter is disposed in an optical path between the third laser and the first lens.
Optionally, the system further comprises a control terminal connected with the spectrometer, the CCD and the shutter control box.
Optionally, the laser further comprises a beam expander disposed in an optical path between the first laser and the reflector.
Optionally, the first laser is a pulsed laser emitting a beam of light having a wavelength of 1064 nm.
Optionally, the second laser is a continuous laser emitting a beam with a wavelength of 532 nm.
Optionally, the third laser is a continuous laser emitting a beam with a wavelength of 405 nm.
The utility model has the advantages that: the limitation of independent detection of the replacement equipment is overcome through the laser light path, the Raman light path and the fluorescence light path, multiple kinds of spectral information are collected simultaneously through the combined system, comprehensive characterization analysis of components of a detection sample is completed, and the detection efficiency is improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of a structure provided by an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1, a raman-fluorescence-laser induced breakdown spectroscopy combination system of the present embodiment includes: a first laser 13, a second laser 15, a third laser 16, a reflecting mirror 2, a dichroic mirror 3, a spectroscope 4, an achromatic objective lens 5, a first lens 6 and a second lens 7; the first laser, the reflecting mirror, the dichroic mirror, the spectroscope and the achromatic objective form a laser light path; the second laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective form a Raman light path; the third laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective constitute a fluorescence light path; the laser light path, the Raman light path and the fluorescence light path act on a detection sample, and reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope, the dichroic mirror, the first lens and the filter 8 to reach the spectrometer 14 for spectrum collection; and the reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope and the second lens to reach a charge-coupled device image sensor (CCD)17 for imaging. The test sample is placed on the placing table 9.
According to the embodiment of the invention, the limitation of independent detection of the replacement equipment is overcome through the laser light path, the Raman light path and the fluorescence light path, multiple kinds of spectral information are collected simultaneously through the combined system, the comprehensive characterization analysis of the components of the detection sample is completed, and the detection efficiency is improved.
Optionally, a shutter control box 18, a first shutter 10, a second shutter 11 and a third shutter 12 are also included; the shutter control box respectively controls the first shutter, the second shutter and the third shutter to act; the first shutter is arranged in an optical path between the first laser and the reflector; the second shutter is arranged in an optical path between the second laser and the first lens; the third shutter is disposed in an optical path between the third laser and the first lens. In this way, the emitting time and the emitting sequence of the first laser, the second laser and the third laser can be automatically and effectively controlled. Helping the user to control the collection of either spectrum.
Optionally, a control terminal 19 is further included, connected to the spectrometer, CCD and shutter control box. Therefore, the information of the spectrometer and the CCD can be transmitted to the control terminal, and the observation and the recording of a user are facilitated. Wherein, the control terminal can be a computer.
Optionally, the laser device further comprises a beam expander 1 disposed in an optical path between the first laser and the reflecting mirror.
Optionally, the first laser is a pulsed laser emitting a beam of light having a wavelength of 1064 nm.
Optionally, the second laser is a continuous laser emitting a beam with a wavelength of 532 nm.
Optionally, the third laser is a continuous laser emitting a beam with a wavelength of 405 nm.
During operation, 1064nm light emitted by the first laser 13 is expanded by the beam expander 1 and then reaches the reflecting mirror 2, the reflected light passes through the dichroic mirror 3 and the dichroic mirror 4, reaches the achromatic objective 5 and then is focused on the surface of a detection sample, and interacts with the detection sample, an emission spectrum generated by the detection sample passes through the dichroic mirror 4, the dichroic mirror 3 and then passes through the first lens 6 and the 532nm notch filter 8 and then reaches the spectrometer 14 for spectrum collection, the spectrometer is controlled by the control terminal 19, in addition, the emission spectrum generated by the detection sample passes through the dichroic mirror 4, the dichroic mirror 3 and then the second lens 7 and then reaches the CCD17 for imaging, and the CCD imaging is controlled by the control terminal 19.
The 532nm wavelength light emitted by the second laser 15 reaches the surface of the sample through the first lens 6, the dichroic mirror 3, the spectroscope 4 and the achromatic objective 5, interacts with the sample, and the generated light reaches the first lens 6 through the spectroscope 4 and the dichroic mirror 3, and then is received by the spectrometer 14.
The third laser 16 emits light with a wavelength of 405nm, the light reaches the surface of the sample through the first lens 6, the dichroic mirror 3, the spectroscope 4 and the achromatic objective 5, interacts with the sample, the generated light reaches the first lens 6 through the spectroscope 4 and the dichroic mirror 3, and then is received by the spectrometer 14.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A combined raman-fluorescence-laser induced breakdown spectroscopy system comprising: the laser comprises a first laser, a second laser, a third laser, a reflecting mirror, a dichroic mirror, a spectroscope, an achromatic objective lens, a first lens and a second lens;
the first laser, the reflecting mirror, the dichroic mirror, the spectroscope and the achromatic objective form a laser light path;
the second laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective form a Raman light path;
the third laser, the first lens, the dichroic mirror, the spectroscope and the achromatic objective constitute a fluorescence light path;
the laser light path, the Raman light path and the fluorescence light path act on a detection sample, and reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope, the dichroic mirror, the first lens and the filter plate to the spectrometer for spectrum collection; and the reflected light of the detection sample sequentially passes through the achromatic objective lens, the spectroscope and the second lens to be imaged on a charge-coupled device image sensor (CCD).
2. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 1, wherein: the shutter control box, the first shutter, the second shutter and the third shutter are also included;
the shutter control box respectively controls the first shutter, the second shutter and the third shutter to act;
the first shutter is arranged in an optical path between the first laser and the reflector;
the second shutter is arranged in an optical path between the second laser and the first lens;
the third shutter is disposed in an optical path between the third laser and the first lens.
3. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 2, wherein: the control terminal is connected with the spectrometer, the CCD and the shutter control box.
4. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 1, wherein: the laser device further comprises a beam expander which is arranged in an optical path between the first laser and the reflector.
5. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 1, wherein: the first laser is a pulsed laser emitting a beam of light having a wavelength of 1064 nm.
6. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 1, wherein: the second laser is a continuous laser emitting a beam of light having a wavelength of 532 nm.
7. The combined raman-fluorescence-laser induced breakdown spectroscopy system of claim 1, wherein: the third laser is a continuous laser emitting a beam of light having a wavelength of 405 nm.
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| CN202020190420.1U CN211553759U (en) | 2020-02-20 | 2020-02-20 | Raman-fluorescence-laser induced breakdown spectroscopy combined system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666128A (en) * | 2020-12-02 | 2021-04-16 | 南昌航空大学 | Multi-spectrum combined detection system and detection method thereof |
| CN112923848A (en) * | 2021-01-25 | 2021-06-08 | 上海兰宝传感科技股份有限公司 | Correlation type laser size measurement sensor |
| CN114660047A (en) * | 2022-03-15 | 2022-06-24 | 中国工程物理研究院材料研究所 | Full-spectrum coaxial optical lens barrel |
| CN115980006A (en) * | 2023-01-04 | 2023-04-18 | 中北大学 | Long-pulse LIBS-Raman-LIF multispectral combined in-situ detection system and detection method thereof |
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2020
- 2020-02-20 CN CN202020190420.1U patent/CN211553759U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666128A (en) * | 2020-12-02 | 2021-04-16 | 南昌航空大学 | Multi-spectrum combined detection system and detection method thereof |
| CN112923848A (en) * | 2021-01-25 | 2021-06-08 | 上海兰宝传感科技股份有限公司 | Correlation type laser size measurement sensor |
| CN112923848B (en) * | 2021-01-25 | 2022-05-24 | 上海兰宝传感科技股份有限公司 | Correlation type laser size measurement sensor |
| CN114660047A (en) * | 2022-03-15 | 2022-06-24 | 中国工程物理研究院材料研究所 | Full-spectrum coaxial optical lens barrel |
| CN114660047B (en) * | 2022-03-15 | 2023-10-27 | 中国工程物理研究院材料研究所 | Full spectrum coaxial optical lens cone |
| CN115980006A (en) * | 2023-01-04 | 2023-04-18 | 中北大学 | Long-pulse LIBS-Raman-LIF multispectral combined in-situ detection system and detection method thereof |
| CN115980006B (en) * | 2023-01-04 | 2024-01-09 | 中北大学 | Long-pulse LIBS-Raman-LIF multispectral combined in-situ detection system and detection method thereof |
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