CN108700523A - A kind of Raman system - Google Patents
A kind of Raman system Download PDFInfo
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- CN108700523A CN108700523A CN201780013756.1A CN201780013756A CN108700523A CN 108700523 A CN108700523 A CN 108700523A CN 201780013756 A CN201780013756 A CN 201780013756A CN 108700523 A CN108700523 A CN 108700523A
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- raman
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- sers
- mechanisms
- effective coverage
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 157
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000004416 surface enhanced Raman spectroscopy Methods 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000000523 sample Substances 0.000 claims description 20
- 238000001228 spectrum Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 19
- 230000003595 spectral effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000691 measurement method Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000002294 plasma sputter deposition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
- G01N21/658—Raman scattering enhancement Raman, e.g. surface plasmons
Abstract
This application involves spectral measurement methods fields, disclose a kind of Raman system.In the application, Raman system includes:Raman detection units and Raman signal intensifier;Raman signal intensifier includes SERS mechanisms and the detent mechanism for being connect with Raman detection units;SERS mechanisms are equipped with Nano-size Reinforced Particle effective coverage, and Nano-size Reinforced Particle effective coverage is for placing sample;Detent mechanism is equipped with locating slot, and locating slot can expose Nano-size Reinforced Particle effective coverage for being inserted and fixed for SERS mechanisms in fixed SERS mechanisms;Nano-size Reinforced Particle effective coverage is towards the light source entrance of Raman detection units, and Raman detection units focus on the Nano-size Reinforced Particle effective coverage exposed by the light that light source entrance emits.This Raman system can be realized quick, pressure focusing, to reach saving focusing time, ensure the effect of measurement result accuracy when carrying out raman spectroscopy measurement.
Description
Technical field
This application involves spectral measurement methods field, more particularly to a kind of Raman system.
Background technology
Raman system can pass through the raman scattering spectrum of acquisition material composition, the corresponding molecular structure letter for obtaining substance
Breath.
Current raman spectroscopy measurement is placed sample particular by Raman enhancing chip, is such as coated to be measured
Liquid, after waiting natural dryings, the front end for being put into microscopic Raman or normal Raman spectroscopy instrument measures, to obtain sample
In material composition and content.
But inventor has found that at least there are the following problems in the prior art:Raman is carried out using existing Raman system
When spectral measurement, each position of Raman enhancing chip is not fixed, and measures the adjustment for being required for carrying out focal length and lateral position every time,
And the time adjusted every time will be more than the time measured, and adjust process and be difficult to reach enough signal-to-noise ratio, this survey
Amount mode can undoubtedly bring a series of problems, such as:1, time-consuming for single measurement, can not batch jobs;2, signal-to-noise ratio is extremely difficult to
Optimal, noise level is high;3, the deviation brought due to site error between repeatedly measuring is big, and consistency is poor;4, be inconvenient to measure,
It is only suitable for laboratory operation, field work can not be suitble to.
Invention content
The application section Example technical problem to be solved is to provide a kind of Raman system, above-mentioned to solve
Technical problem.
One embodiment of the application provides a kind of Raman system, which includes:Raman detection units
With Raman signal intensifier;Raman signal intensifier includes SERS mechanisms and the positioning for being connect with Raman detection units
Mechanism;SERS mechanisms are equipped with Nano-size Reinforced Particle effective coverage, and Nano-size Reinforced Particle effective coverage is for placing sample;
Detent mechanism is equipped with locating slot, and locating slot is used to be inserted and fixed for SERS mechanisms, and can be sudden and violent in fixed SERS mechanisms
Expose Nano-size Reinforced Particle effective coverage;Nano-size Reinforced Particle effective coverage towards Raman detection units light source entrance, and
Raman detection units focus on the Nano-size Reinforced Particle effective coverage exposed by the light that light source entrance emits.
The embodiment of the present application in terms of existing technologies, provides a kind of Raman that can realize quick pressure focusing
System, when carrying out raman spectroscopy measurement, by the way that the SERS mechanisms for being equipped with Nano-size Reinforced Particle effective coverage are inserted into positioning
It realizes and fixes in the locating slot opened up in mechanism, and Nano-size Reinforced Particle effective coverage is exposed in fixed SERS mechanisms, receive
Then meter Zeng Qiang particles effective coverage utilizes detent mechanism and Raman detection units towards the light source entrance of Raman detection units
Connection so that it is effective that the light that Raman detection units are emitted by light source entrance can focus on the Nano-size Reinforced Particle exposed
On region, to realize quick, pressure focusing, and then focusing time is saved, and can effectively avoid existing for adjusting manually
Error phenomenon ensure that the accuracy of measurement result.
Description of the drawings
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element with same reference numbers label is expressed as similar element in attached drawing, removes
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the structural schematic diagram of the Raman system of the application first embodiment;
Fig. 2 is the structural schematic diagram of the Raman system of the application second embodiment;
Fig. 3 is the structural schematic diagram of the Raman system of the application 3rd embodiment.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application section Example is further elaborated.It should be appreciated that specific embodiment described herein is only used to solve
The application is released, is not used to limit the application.
The first embodiment of the application is related to a kind of Raman system, which includes mainly Raman detection units and drawing
Graceful signal enhancing device.Raman signal intensifier includes Surface enhanced Raman scattering (SERS) mechanism and is used for and Raman detection
The detent mechanism of device connection.
Wherein, SERS mechanisms are equipped with Nano-size Reinforced Particle effective coverage, and Nano-size Reinforced Particle effective coverage is for placing
Sample, detent mechanism are equipped with locating slot, and locating slot can fix SERS for being inserted and fixed for SERS mechanisms
When mechanism, Nano-size Reinforced Particle effective coverage is exposed.
Specifically, when carrying out raman spectroscopy measurement, by the way that SERS mechanisms to be inserted into determining of being opened up on detent mechanism
It realizes and fixes in the slot of position, and the light source of the Nano-size Reinforced Particle effective coverage in SERS mechanisms towards Raman detection units is come in and gone out
Mouthful, so that Raman detection units is passed through the light that light source entrance emits and focuses on the Nano-size Reinforced Particle effective coverage exposed, from
And realize quick, pressure focusing, and then focusing time is saved, and error existing for manual adjust can be effectively avoided, it ensure that
The accuracy of measurement result.
It should be noted that the Nano-size Reinforced Particle effective coverage being arranged in the SERS mechanisms provided in the present embodiment is specific
It is to be located at the geometric center position of SERS mechanisms, and Nano-size Reinforced Particle effective coverage is at least 1mm × 1mm, to the greatest extent
SERS mechanism sizes may be reduced, while saving manufacturing cost, also ensure the performance of SERS mechanisms.
In addition, it is noted that in practical applications, detent mechanism can be directly fixed on Raman detection units,
When making Raman system carry out raman spectroscopy measurement, SERS mechanisms need to be only inserted into locating slot.
Detent mechanism can also be fixed on using dismountable mode on Raman detection units, by tester according to need
It wants, decides whether that detent mechanism and SERS mechanisms are installed on Raman detection units.Also, by detent mechanism with detachable
Mode be fixed on Raman detection units, a detent mechanism can be allow to be installed on different Raman detection units
It uses, concrete implementation mode, those skilled in the art can be configured, not be limited herein as needed.
In addition, in order to after raman spectroscopy measurement, SERS mechanisms can be popped up from detent mechanism, convenient for more
It changes, is measured for next time, pop-up button is additionally provided on the detent mechanism provided in the present embodiment, which usually can be with
It is arranged on the notch periphery of locating slot, to which after raman spectroscopy measurement, tester can pop up button by pressing
SERS mechanisms are popped up from detent mechanism.
It should be noted that in practical applications, pop-up button for popping up SERS mechanisms from detent mechanism
Concrete shape, structure and installation position, are not limited, and those skilled in the art can be rationally arranged as needed, fixed
The size of locating slot opened up in the mechanism of position and position can determine according to focal length to be tested and the article volume of measurement,
It is not limited herein.
In order to make it easy to understand, enhancing chip by Raman of SERS mechanisms below, Raman detection units are examined for Handheld Raman
It surveys for spectrometer, is specifically described, the concrete structure of Raman system is as shown in Figure 1.
In Fig. 1,100 detect spectrometer for Handheld Raman, and 200 be Raman signal intensifier.
Wherein, Raman signal intensifier 200 includes Raman enhancing chip 201 and detent mechanism 202.Detent mechanism 202
It is equipped with locating slot 2021 and pop-up button 2022.
When carrying out raman spectroscopy measurement, detent mechanism 202 is fixed on the front end that Handheld Raman detects spectrometer 100
(one end for offering light source touch-control) increases sample, such as liquid or powder coating in the nanometer on Raman enhancing chip 201
In strong particle effective coverage, then Raman enhancing chip 201 is inserted into the locating slot 2021 on detent mechanism 202, to
Realize that fixed Raman enhances chip 201.
Due to detent mechanism 202 size and locating slot 2021 position in the preparation, have been made with reference to match
The focal length of light source that can emit of Handheld Raman detection spectrometer 100 be therefore inserted into Raman is enhanced chip 201
Locating slot 2021, after detent mechanism 202 is fixed on Handheld Raman detection spectrometer 100, Handheld Raman detects spectrum
Instrument 100 is focused on by the light that light source entrance emits on the Nano-size Reinforced Particle effective coverage exposed.
After completing above-mentioned work, opens Handheld Raman and detect spectrometer 100, pass through electromagnetism (magnetic stripe) or optics
The method of (Quick Response Code) carries out the judgement of Raman enhancing 201 information of chip, is determining that Raman enhancing chip 201 can use and effectively
When, start raman spectroscopy measurement, Raman enhanced spectrum is obtained, so as to accurately obtain the material composition in sample and contain
Amount.
By foregoing description it is not difficult to find that the Raman system provided in the present embodiment is led to when carrying out raman spectroscopy measurement
It crosses to be inserted into the locating slot opened up on detent mechanism equipped with the Raman of Nano-size Reinforced Particle effective coverage enhancing chip and realize
Fixed, and Nano-size Reinforced Particle effective coverage is exposed in fixed SERS mechanisms, Nano-size Reinforced Particle effective coverage is towards hand
The light source entrance of formula Raman detection spectrometer is held, then utilizes detent mechanism to be connect with Handheld Raman detection spectrometer, makes
The light that is emitted by light source entrance of hand-held Raman detection spectrometer can focus on the Nano-size Reinforced Particle exposed and have
It imitates on region, solves in existing raman spectroscopy measurement, need to manually adjust Raman enhancing chip, Raman enhancing chip is made to realize
The problem of three-dimensional focal alignment in space.By above-mentioned Raman system, quick, pressure focusing is realized, and then save focusing
Time, and can effectively avoid adjusting existing error phenomenon manually, it ensure that the accuracy of measurement result.
In addition, due to the use of convenient, and in use, Raman enhancing chip will not shake, therefore will not change
Focal length so that Raman system provided in this embodiment can be adapted for more testing occasion.
The second embodiment of the application is related to a kind of Raman system.Enhance core by Raman of SERS mechanisms in the present embodiment
Piece, Raman detection units are for microscopic Raman detects spectrometer, to be specifically described, concrete structure such as Fig. 2 of Raman system
It is shown.
As shown in Fig. 2, the component that Raman system includes in the present embodiment and the component that Raman system shown in FIG. 1 includes are big
It causes identical, is that in the present embodiment, Raman detection units are that microscopic Raman detects spectrometer in place of the main distinction.
Specifically, Fig. 2 shows 200 be only microscopic Raman detect spectrometer microlens, be particularly used for observation quilt
The object lens of sample.
The occupation mode of the Raman system provided in the present embodiment, the user with the Raman system in first embodiment
Formula, roughly the same, the technical detail not embodied in the present embodiment specifically may refer to the technical side described in first embodiment
Case, details are not described herein again.
The 3rd embodiment of the application is related to a kind of Raman system.The present embodiment done on the basis of first embodiment into
One step is improved, and main improvements are:Detent mechanism is connect by Raman probe with Raman detection units in the present embodiment, the drawing
The specific structure is shown in FIG. 3 for graceful system.
In Fig. 3,100 be Raman detection spectrometer, and 200 be Raman signal intensifier, and 300 be Raman probe, and 400 be sharp
Light device.
Raman signal intensifier 200 in the present embodiment increases with the Raman signal in the first embodiment or the second embodiment
200 structure of intensity device is roughly the same, and details are not described herein again, and Raman detection spectrometer 100 and laser 400 are currently used
Device, details are not described herein again.Illustrate effect of the Raman probe 300 played in Raman system mainly in combination with Fig. 3 below.
Specifically, Raman probe 300 is the external circuits for coupled laser 400 and Raman detection spectrometer 100
Part.The connection that detent mechanism 202 and Raman detection spectrometer 100 are realized by Raman probe 300, can improve optical coupled
Efficiency, and improve the portability that Raman detection spectrometer uses.Increase in addition, increasing Raman signal in 300 front end of Raman probe
Intensity device 200 can make conventional Raman probe 300 play the role of Raman enhancing probe.
In Fig. 3, laser 400 can be specifically optical fiber laser, the laser signal sent out by it, by the first collimating mirror
301 become parallel laser.
Dichroic piece 302 is arranged with 45 degree of overturning angles, anti-with 45 degree of angles after so that parallel laser is irradiated to dichroic piece 302
It is mapped on the second collimating mirror 303, and the measured target on Raman enhancing chip 201 is focused on by window 304, start Raman light
Spectrometry.
The Raman signal that sample generates filters out 99.9% along with laser reflection light by the second collimating mirror 303
Interference is reflected into dichroic piece 302, and passes through dichroic piece 302.
Raman signal light in the optical signal after dichroic piece 302 is without hindrance to be passed sequentially through in filter set 305
The first optical filter 3051 and the second optical filter 3052, so that laser signal be further filtered out.
Filtered Raman signal light is focused on by focus lamp 306 in the slit of Raman detection spectrometer 100, is used for down
One step spectroscopic measurements.
In addition, it is necessary to illustrate, what the optical filter in the present embodiment in Raman probe 300 was chosen is specifically to use magnetic control
High pass cutoff optical filter prepared by sputtering or plasma sputtering coating process, in practical applications, those skilled in the art can
To carry out Rational choice as needed, it is not limited herein.
By foregoing description it is not difficult to find that the Raman system provided in the present embodiment, will position by using Raman probe
Mechanism is fixedly connected with Raman detection spectrometer, so as to reach raising optical coupling efficiency and Raman detection spectrometer
The portability used.
It will be understood by those skilled in the art that the various embodiments described above are to realize the specific embodiment of the application, and
In practical applications, can to it, various changes can be made in the form and details, without departing from spirit and scope.
Claims (10)
1. a kind of Raman system, wherein including:Raman detection units and Raman signal intensifier;
The Raman signal intensifier includes Surface enhanced Raman scattering SERS mechanisms and is used for and the Raman detection units
The detent mechanism of connection;
The SERS mechanisms are equipped with Nano-size Reinforced Particle effective coverage, and the Nano-size Reinforced Particle effective coverage is for placing quilt
Sample;
The detent mechanism is equipped with locating slot, and the locating slot is used to be inserted and fixed for the SERS mechanisms, and can be
The Nano-size Reinforced Particle effective coverage is exposed when the fixed SERS mechanisms;
Wherein, the Nano-size Reinforced Particle effective coverage is towards the light source entrance of the Raman detection units, and the Raman
Detection device focuses on the Nano-size Reinforced Particle effective coverage exposed by the light that the light source entrance emits.
2. Raman system as described in claim 1, wherein the detent mechanism is detachably secured to the Raman detection dress
It sets.
3. Raman system as claimed in claim 1 or 2, wherein the detent mechanism is examined by Raman probe and the Raman
Survey device connection.
4. the Raman system as described in claims 1 to 3 any one, wherein be additionally provided with pop-up button on the detent mechanism;
The pop-up button from the detent mechanism for popping up the SERS mechanisms.
5. the Raman system as described in Claims 1-4 any one, wherein the Nano-size Reinforced Particle effective coverage is located at
The geometric center position of the SERS mechanisms.
6. the Raman system as described in claim 1 to 5 any one, wherein the Nano-size Reinforced Particle effective coverage is at least
For 1mm × 1mm.
7. the Raman system as described in claim 1 to 6 any one, wherein the SERS mechanisms, which are Raman, enhances chip.
8. the Raman system as described in claim 1 to 6 any one, wherein the Raman detection units are Raman detection light
Spectrometer.
9. Raman system as claimed in claim 8, wherein the Raman detection spectrometer is that Handheld Raman detects spectrum
Instrument.
10. the Raman system as described in claim to 6 any one, wherein the Raman detection units are examined for microscopic Raman
Survey spectrometer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/118030 WO2019119425A1 (en) | 2017-12-22 | 2017-12-22 | Raman system |
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| Publication Number | Publication Date |
|---|---|
| CN108700523A true CN108700523A (en) | 2018-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780013756.1A Pending CN108700523A (en) | 2017-12-22 | 2017-12-22 | A kind of Raman system |
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| CN (1) | CN108700523A (en) |
| WO (1) | WO2019119425A1 (en) |
Cited By (1)
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| CN109799221A (en) * | 2019-01-07 | 2019-05-24 | 北京青木子科技发展有限公司 | A kind of removable teaching Raman spectroscopy system and its control method |
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