TWM515103U - Variable light source Raman spectroscopy capture apparatus - Google Patents

Description

Variable light source Raman spectroscopy extraction device

This creation relates to a Raman spectroscopic extraction device, in particular to a variable source Raman spectroscopic extraction device for rapidly changing different excitation sources.

According to Raman spectroscopy, a spectroscopic technique used to study the vibration modes, rotation modes and other low-frequency modes of a crystal lattice and molecules is one of the main techniques used in spectral analysis of materials; For example, the current photovoltaic material, Graphene, requires the measurement of Raman spectroscopy.

When the excitation light is irradiated onto the substance, a scattering phenomenon occurs, and the scattered light is generated. In the scattered light, there is light of the same wavelength as the original excitation light, which is the same wavelength as the original excitation light in the scattered light. Light, which is caused by the elastic scattering of excitation light and matter, called Rayliegh scattering. There is also a component in the scattered light that is longer and shorter than the wavelength of the excitation light. This is due to the inelastic scattering of the excitation light and the substance. This is the Raman scattering.

Generally, the spectrum formed by combining Rayleigh scattering and Raman scattering is called Raman spectroscopy. The frequency, intensity and polarization in the Raman spectrum are all characterized by scattering materials. The nature of matter, The material structure can be known from these materials, and this is why Raman spectroscopy is widely used.

It is known that the excitation light source of the same position can be guided to the sample through the spectrometer, and the optical signal scanned on the sample can be returned to a spectrometer for collection and processing, and the visible light can be simultaneously transmitted to an image capture. The device is configured to view and analyze the operation process of the entire Raman spectrum through the image signal.

Furthermore, for samples with unclear structural properties, it is highly probable that several different excitation sources will be required to complete the desired test; however, similar Raman spectroscopy extraction devices are attached to the machine. Configure a single excitation light source. If you need to use different excitation light sources, you must replace different light source devices, or move the sample to other machine operations. This not only takes a lot of time, but also changes and moves. The process is relatively complicated and cumbersome, and it will affect the test results due to improper displacement and vibration.

In view of this, the present invention is to provide a variable source Raman spectroscopy extraction device for rapidly changing different excitation light sources, which is its main purpose.

In order to achieve the above object, the variable light source Raman spectroscopy acquisition device of the present invention basically comprises: a light source generating module, a loading stage, a spectrometer, and a spectrometer; wherein: the light source generating module There are at least two photoelectric elements for generating a preset excitation light source after being energized, and all of the photoelectric elements are maintained in a predetermined distance by parallel illumination of the light exiting paths in the same direction, and another The mirror is mounted at a light-emitting direction of all of the photovoltaic elements in a pattern that is reciprocally displaceable between light-emitting paths of all of the photovoltaic elements; the stage is provided with a positioning assembly for fixing the sample to be scanned; The spectrometer is provided with an objective lens corresponding to the stage, and a spectroscope is disposed between the objective lens and the mirror; the spectrometer is disposed at a position corresponding to the spectroscope of the spectrometer for transmitting The beam splitter captures the optical signal that is transmitted back to the sample under test.

Using the above structural features, the variable light source Raman spectroscopic extraction device of the present invention mainly guides the excitation light source generated by one of the photoelectric elements into the spectrometer through a mirror; if necessary, by simply moving the mirror The excitation light source that converts other photoelectric elements enters the spectrometer, so as to quickly scan the excitation light source of different wavelengths at the same point of the sample to be obtained, so as to obtain more measurement values; in particular, external vibration or other can be completely avoided. The human error causes the position error of the sample to be measured, which results in relatively accurate measurement results.

According to the above structural feature, the variable light source Raman spectroscopy extracting device is provided with a linear slide rail spanning between the light exit paths of all the photoelectric elements, and the mirror is reciprocally movable along the linear slide rail. The type is mounted on the linear slide.

According to the above structural feature, the variable light source Raman spectroscopy extracting device is further provided with a first linear platform for horizontal reciprocating displacement, and a second vertical vertical reciprocating displacement is provided on the first linear platform. A linear platform, the stage being disposed on the second linear platform.

According to the above structural feature, the light source generating module has a A first photovoltaic element for generating a 405 nm wavelength excitation source after energization, a second photovoltaic element for generating a 532 nm wavelength excitation source after energization, and a third photovoltaic element for generating a 632.8 nm wavelength excitation source after energization.

According to the above structural feature, the variable light source Raman spectroscopy extracting device is provided with a linear slide rail spanning between the light exit paths of all the photoelectric elements, and the mirror is reciprocally movable along the linear slide rail. a type mounted on the linear slide; a first linear platform for horizontal reciprocating displacement, and a second linear platform for vertical reciprocating displacement on the first linear platform, the load The stage is disposed on the second linear platform; the light source generating module has a first photoelectric element for generating a 405 nm wavelength excitation light source after being energized, and a second photoelectric element for generating a 532 nm wavelength excitation light source after being energized. A third photovoltaic element for generating a 633 nm wavelength excitation source after being energized.

The variable light source Raman spectroscopy extracting device further includes a first driving component for driving the mirror to reciprocate along the linear sliding rail, and a second driving component for driving the displacement of the first linear platform, a third driving element for driving the displacement of the second linear platform; and a first driving element, the second driving element, the third driving element, the first photoelectric element, the second photoelectric element, A third optoelectronic component and a control circuit electrically connected to the spectrometer.

The spectrometer receives an optical signal from the beam splitter through a fiber coupler.

Specifically, the variable light source Raman spectroscopic extraction device disclosed in the present invention can transform the excitation of other photoelectric elements by simply moving the mirror. The light source enters the spectrometer to quickly scan the excitation light source with different wavelengths at the same point of the sample to obtain more measured values; in particular, the external vibration or other human factors can be completely avoided to cause the sample to be tested. The positional offset error can result in relatively accurate measurement results.

A‧‧‧samples tested

10‧‧‧Light source generation module

11‧‧‧First Optoelectronics

12‧‧‧Second optoelectronic components

13‧‧‧ Third optoelectronic component

14‧‧‧Mirror

20‧‧‧ stage

30‧‧‧Spectrometer

31‧‧‧ Objective lens

32‧‧‧beam splitter

40‧‧‧ Spectrometer

41‧‧‧Fiber coupler

51‧‧‧First linear platform

52‧‧‧Second linear platform

60‧‧‧Linear slides

71‧‧‧First drive element

72‧‧‧Second drive components

73‧‧‧ Third drive component

80‧‧‧Control circuit

The first picture is a block diagram of the basic composition of the variable light source Raman spectroscopy acquisition device.

Figure 2 is a schematic diagram of the state of the variable light source Raman spectroscopy acquisition device after the mirror is changed position.

The present invention mainly provides a variable light source Raman spectroscopy extraction device for rapidly changing different excitation light sources. As shown in Fig. 1, the variable light source Raman spectroscopy extraction device of the present invention basically comprises: a light source The generating module 10, a loading table 20, a spectrometer 30, and a spectrometer 40 are also referred to in FIG. 2, wherein the light source generating module 10 has at least two for generating electricity in advance. In the embodiment, the light source generating module 10 basically has a first photoelectric element 11 for generating a 405 nm wavelength excitation light source after being energized, and a 532 nm wavelength excitation light source for energization. Second photoelectric Element 12, a third optoelectronic component 13 for generating a 632.8 nm wavelength excitation source after energization, all of the optoelectronic components (first optoelectronic component 11, second optoelectronic component 12, and third optoelectronic component 13) having the same light exiting path The direction of the parallel illumination is maintained at a predetermined distance, and a mirror 14 is reciprocally displaceable between the light paths of the total number of photovoltaic elements (the first photovoltaic element 11, the second photovoltaic element 12, and the third photovoltaic element 13). The light-emitting directions of the entire photovoltaic elements (the first photovoltaic element 11, the second photovoltaic element 12, and the third photovoltaic element 13) are mounted in a pattern.

The stage 20 is provided with a positioning component (not shown) for fixing the sample A to be scanned; in practice, the overall variable source Raman spectrum extraction device may be additionally provided with a horizontal level. a first linear platform 51 reciprocally displaced, and a second linear platform 52 for vertically reciprocating displacement is disposed on the first linear platform 51, and the loading platform 20 is disposed on the second linear platform 52. Through the reciprocating displacement of the first and second linear platforms 51, 52, the purpose of adjusting the scanned point of the sample A to be tested is achieved.

The spectrometer 30 is provided with an objective lens 31 corresponding to the stage 20, and a beam splitter 32 is disposed between the objective lens 31 and the mirror 14; the excitation of the mirror 14 is mainly used by the beam splitter 32. The light source is directed to the stage 20 to scan the sample A under test on the stage 20 while guiding the optical signal returned by the sample A to the spectrometer 40.

The spectrometer 40 is disposed at a position corresponding to the beam splitter 32 of the spectrometer 30, and is used to extract the optical signal transmitted back to the sample A after being transmitted through the beam splitter 32; in practice, the spectrometer 40 Through a fiber coupler 41 The optical signal from the beam splitter 32 is received for measuring the Raman spectrum phenomenon of the sample A under test.

In principle, the variable light source Raman spectroscopy extraction device of the present invention, when in use, fixes the sample A to be scanned to the stage 20, and first selects which one of the photovoltaic elements is to be excited. When the light source is selected for the sample A, after the photoelectric element is selected, the mirror 14 is moved to a position corresponding to the photoelectric element. In the embodiment shown in Fig. 1, the excitation light source of the third photoelectric element 13 is selected. The sample A is scanned, so that the mirror 14 is moved to a position corresponding to the third photovoltaic element 13.

After the third photoelectric element 13 is activated, the excitation light source generated by the third photoelectric element 13 is guided into the spectrometer 30 through the mirror 13, and the excitation generated by the third photoelectric element 13 is generated by the spectrometer 30. The light source is guided onto the sample A to be tested, and the optical signal scanned on the sample A is returned to the spectrometer 40 for scanning and measuring the Raman spectrum phenomenon of the sample to be tested.

If necessary, the excitation light source of the other photoelectric element can be converted into the spectrometer 30 by simply moving the mirror, for example, the mirror 14 is moved to a position corresponding to the second photoelectric element 12 (as shown in FIG. 2). And the operation of the second photoelectric element 12 is started, and the excitation light source generated by the second photoelectric element 12 can be converted to scan the sample A to achieve rapid excitation of the same point of the sample A to be applied at different wavelengths. The light source is scanned for the purpose of obtaining more measured values; in particular, the positional offset error of the sample A to be tested may be completely avoided by external shock or other human factors, and a relatively accurate measurement result may be obtained.

The variable light source Raman spectroscopy extraction device of the present invention can be further provided with a light-emitting path spanning all of the photovoltaic elements (the first photovoltaic element 11, the second photovoltaic element 12, and the third photoelectric element 13). Between the linear slides 60, the mirror 14 is mounted on the linear slide 60 in a reciprocating manner along the linear slide 60 to increase the stability of the displacement of the mirror 14.

Of course, the overall variable source Raman spectroscopy acquisition device is provided with a linear slide 60 spanning between the light exit paths of the full number of photovoltaic elements, the mirror 14 being reciprocally displaceable along the linear slide 60 a type of the first linear platform 51 for horizontal reciprocating displacement, and a second linear platform for vertical reciprocating displacement on the first linear platform 51. 52, the stage 20 is disposed on the second linear platform 52; the light source generating module has a first photoelectric element 11 for generating a 405 nm wavelength excitation light source after being energized, and a 532 nm wavelength for energization. Preferably, the second photovoltaic element 12 of the excitation source, and the third photovoltaic element 13 for generating a 632.8 nm wavelength excitation source after energization, preferably exhibit a structural form.

Furthermore, the variable light source Raman spectroscopy acquisition device of the present invention may further be provided with a first driving element 71 for driving the mirror 14 to reciprocate along the linear sliding rail 60, and for driving the first line. a second driving component 72 displaced by the platform 51, a third driving component 73 for driving the displacement of the second linear platform 52, and a first driving component 71, the second driving component 72, and the third driving The element 73, the first optoelectronic element 11, the second optoelectronic element 12, the third optoelectronic element 13, and a control circuit 80 electrically connected to the spectrometer 40.

Accordingly, the overall variable light source Raman spectroscopy acquisition device can pass through the control circuit 80, the first driving element 71, the second driving element 72, the third driving element 73, the first photovoltaic element 11, and the second photovoltaic element 12. The integrated operation of the third optoelectronic component 13 and the spectrometer 40 effectively achieves the goal of automatic control and effectively improves the speed and quality of the measurement.

Compared with the conventional structure, the variable light source Raman spectroscopy extraction device disclosed in the present invention can change the excitation light source of other photoelectric components into the spectrometer by simply moving the mirror to achieve rapid measurement of the sample to be tested. At the same point, the excitation light source with different wavelengths is scanned to obtain more measured values; in particular, the positional deviation error of the sample to be tested can be completely avoided by external vibration or other human factors, and a relatively accurate amount can be obtained. Test results.

In summary, the present invention provides a preferred and feasible variable source Raman spectroscopy acquisition device, and submits a patent application according to law; the technical content and technical features of the creation have been disclosed above, but are familiar with the technology. Persons may still make substitutions and modifications based on the disclosure of this creation without departing from the spirit of the creation of the case. Therefore, the scope of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims.

A‧‧‧samples tested

10‧‧‧Light source generation module

11‧‧‧First Optoelectronics

12‧‧‧Second optoelectronic components

13‧‧‧ Third optoelectronic component

14‧‧‧Mirror

20‧‧‧ stage

30‧‧‧Spectrometer

31‧‧‧ Objective lens

32‧‧‧beam splitter

40‧‧‧ Spectrometer

41‧‧‧Fiber coupler

51‧‧‧First linear platform

52‧‧‧Second linear platform

60‧‧‧Linear slides

71‧‧‧First drive element

72‧‧‧Second drive components

73‧‧‧ Third drive component

80‧‧‧Control circuit

Claims (7)

A variable light source Raman spectroscopy extracting device comprises: a light source generating module, a loading stage, a spectrometer, and a spectrometer; wherein: the light source generating module has at least two for generating electricity in advance The photoelectric element of the excitation light source is set, and all the photoelectric elements maintain a preset distance by parallel illumination of the light exiting path in the same direction, and another mirror is mounted in a form that can reciprocally shift between the light exit paths of all the photoelectric elements. a light-emitting direction of all the photoelectric elements; the stage is provided with a positioning component for fixing the sample to be scanned; the spectrometer is provided with an objective lens corresponding to the stage, and the objective lens is A spectroscope is disposed between the mirrors; the spectrometer is disposed at a position corresponding to the spectroscope of the spectrometer, and is configured to obtain an optical signal that is returned after being scanned to the sample to be tested through the spectroscope. The variable light source Raman spectroscopic extraction device of claim 1, wherein the variable source Raman spectroscopic extraction device is provided with a linear slide rail spanning between light exit paths of all the photovoltaic elements, The mirror is mounted on the linear slide in a pattern that is reciprocally displaceable along the linear slide. The variable light source Raman spectroscopic extraction device of claim 1, wherein the variable source Raman spectroscopic extraction device further comprises a first linear platform for horizontal reciprocating displacement, the first line The second platform is provided on the platform with a vertical reciprocating displacement, and the stage is disposed on the second linear platform. The variable light source Raman spectroscopic extraction device according to claim 1, wherein the light source generating module has a first photoelectric element for generating a 405 nm wavelength excitation light source after being energized, and a 532 nm for supplying electricity. The second optoelectronic component of the wavelength excitation source, and a third optoelectronic component for generating a 632.8 nm wavelength excitation source after energization. The variable light source Raman spectroscopic extraction device of claim 1, wherein the variable source Raman spectroscopic extraction device is provided with a linear slide rail spanning between light exit paths of all the photovoltaic elements, The mirror is mounted on the linear slide rail in a reciprocating manner along the linear slide rail; and a first linear platform for horizontally reciprocating displacement, and a first linear platform is disposed on the first linear platform a second linear platform for vertical reciprocating displacement, the stage is disposed on the second linear platform; the light source generating module has a first photoelectric component for generating a 405 nm wavelength excitation light source after being energized, and a After energization, a second optoelectronic component that produces a 532 nm wavelength excitation source, and a third optoelectronic component that produces a 633 nm wavelength excitation source after energization are generated. The variable light source Raman spectroscopy extraction device of claim 5, wherein the variable source Raman spectroscopy extraction device is further provided with a first one for driving the mirror to reciprocate along the linear slide a driving component, a second driving component for driving the displacement of the first linear platform, a third driving component for driving the displacement of the second linear platform; and a first driving component, the second driving component, The third driving element, the first photovoltaic element, the second photovoltaic element, the third photovoltaic element, and a control circuit electrically connected to the spectrometer. The variable light source Raman spectroscopic pick-up apparatus of any one of claims 1 to 5, wherein the spectrometer receives an optical signal from the spectroscope through a fiber coupler.