Hyperspectral transient absorption imaging system and data acquisition method thereof

Abstract

The invention relates to a hyperspectral transient absorption imaging system and a data acquisition method thereof, and belongs to the technical field of spectrum test equipment, the hyperspectral transient absorption imaging system comprises a pulse light source, a time delayer, a reflector, a beam splitter, a microscope objective, an objective table, an optical filter, an imaging mirror and a hyperspectral camera component; the pulse light source is used for generating excitation light and detection light; the exciting light passes through the reflector and the beam splitter, is collinear with the probe light, then passes through the microscope objective to irradiate the surface of a detected sample on the objective table together, passes through the optical filter to filter the exciting light transmitted from the detected sample, passes through the imaging mirror, and is subjected to transient spectral imaging by the hyperspectral camera component. According to the transient absorption spectrum imaging system based on focal plane push-broom spectral imaging, multi-dimensional measurement of spectrum, space and time can be achieved at the same time, measurement of physical quantities such as carrier mobility and diffusion coefficients in photoelectric materials and photovoltaic materials is achieved, and an efficient tool is provided for transient imaging and quantitative analysis of excited states of the materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of spectrum testing equipment, and in particular, relates to a hyperspectral transient absorption imaging system and a data acquisition method thereof. Background Art

[0002] Time-resolved absorption spectroscopy is a widely used technique that can study the dynamics of carrier generation, recombination, and transport inside materials by measuring the ultrafast transient absorption spectra and single-wavelength kinetic decay signals of optoelectronic materials and devices.

[0003] Information in the spectral dimension is the basis for ultrafast time-resolved measurements of optoelectronic materials. It is often necessary to spectrally track the excited states after light excitation in the spectral dimension, and then obtain the dynamic process of the related excited states inside the material from the time dimension.

[0004] When performing transient absorption imaging on materials or devices, the existing technology needs to first measure the transient absorption spectrum, lock and select the spectral range, and then use filters to achieve single-wavelength imaging according to the wavelength range to be observed. This method is too cumbersome to operate. When performing transient absorption imaging, filters are used to achieve single-wavelength transient absorption imaging instead of transient imaging in the full spectral range. Due to the bandwidth limitation of the filter, good spectral resolution cannot be achieved, and the spectral range is very limited.

[0005] In order to study the physical processes such as carrier spatial diffusion, mobility, and carrier spatial charge transfer in optoelectronic and photovoltaic materials, it is necessary to develop an ultrafast microscopic imaging system with both time and space dimensions. The ultrafast spatial imaging measurement systems of optoelectronic materials and devices, and biomolecular materials in the existing technology cannot achieve spectral resolution and spatial resolution at the same time, and there is also a lack of a technology for transient imaging in the full spectral range. Summary of the invention

[0006] To solve the above problems, the present invention proposes a hyperspectral transient absorption imaging system and a data acquisition method thereof, which utilizes ultrafast time-resolved hyperspectral imaging to realize multi-dimensional measurement of time dimension, space dimension, and spectral dimension, so as to realize ultrafast spectral imaging measurement of various advanced materials such as optoelectronic materials, photocatalytic materials, photovoltaic materials, and biological probe materials.

[0007] A first aspect of the present invention provides a hyperspectral transient absorption imaging system, comprising:

[0008] A pulse light source 1, a time delay device 4, a reflector 5, a beam splitter 6, a microscope objective lens 7, a stage 8, a filter 9, an imaging lens 10 and a hyperspectral camera assembly 11 are arranged in sequence;

[0009] Wherein, the pulse light source 1 is used to generate two pulse lights, one for generating excitation light 2, and one for generating light in a certain spectral range as detection light 3;

[0010] A time delay device 4, used to generate a time interval between the excitation light 2 and the detection light 3;

[0011] A hyperspectral camera component 11 is used to realize dispersion-type spectroscopic spectral imaging and data acquisition functions;

[0012] The excitation light 2 passes through the reflector 5 and the beam splitter 6, and after being collinear with the detection light 3, it passes through the microscope objective 7 and irradiates the surface of the sample to be measured on the stage 8. After the excitation light transmitted from the sample to be measured is filtered out by the filter 9, it passes through the imaging mirror 10 and the hyperspectral camera component 11 performs transient spectral imaging.

[0013] Furthermore, the hyperspectral camera assembly 11 includes: a slit 21, a collimator 22, a PGP dispersion unit 23, a focusing lens 24 and a spectral camera 25 which are arranged in sequence.

[0014] Furthermore, the time delay device 4 comprises: a time delay line and a pulse delay generator; wherein,

[0015] Time delay line, used to obtain femtosecond time-resolved transient absorption spectroscopy imaging with different time delays;

[0016] Pulse delay generator for nanosecond transient absorption spectroscopy imaging with different time delays.

[0017] Furthermore, the slit 21 is arranged at the image focal plane, and the light enters the PGP dispersion unit 23 through the collimator 22. After dispersion, the light passes through the focusing lens 24, and different bands are focused on different positions of the spectral camera 25. This process completes the spectral imaging at a slit of the image plane, and then the spectral camera 25 performs one-dimensional scanning in the direction of the image plane, and finally completes the spectral imaging of the entire image plane.

[0018] Furthermore, the PGP dispersion unit 23 is composed of a prism-grating-prism structure, wherein the refractive index of the prism is the same as the refractive index of the grating.

[0019] Furthermore, after the time delay device 4 causes a time interval between the excitation light 2 and the detection light 3, the two light beams achieve spatial overlap at the front surface of the sample. After passing through the sample, the detection light 3 is focused on the image focal plane through the imaging mirror 10, and the excitation light 2 is imaged at the slit 21 through the imaging mirror 10 through the filter 9, and reaches the spectral camera 25 after passing through the collimator 22, the PGP dispersion unit 23, and the focusing mirror 24, and then the spectral imaging data at the time interval is obtained by pushing and scanning the focal plane through the electrically controlled spectral camera 25.

[0020] Furthermore, the spectral camera 25 is also used to scan in the time dimension to obtain data cubes of transient hyperspectral imaging with different time delays.

[0021] A second aspect of the present invention provides a data acquisition method for a hyperspectral transient absorption imaging system. Based on the hyperspectral transient absorption imaging system described in the first aspect, the data acquisition method comprises:

[0022] S1, a pulse light source generates excitation light and detection light, and an optical chopper is used to chop and modulate the excitation light;

[0023] S2, using a time delay device to set the time interval between the excitation light and the detection light, the femtosecond light source uses a time delay line, and the nanosecond light source uses a pulse delay generator;

[0024] S3, the optical chopper outputs a synchronization signal to trigger the over-spectrum camera to collect data;

[0025] S4, obtaining transient absorption spectrum imaging data at the time interval;

[0026] S5, repeating steps S2 to S4 to obtain transient absorption spectrum imaging data at a series of time intervals.

[0027] According to a third aspect of the present invention, there is provided an electronic device, comprising:

[0028] at least one processor; and a memory in communication with the at least one processor; wherein,

[0029] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the data acquisition method for a hyperspectral transient absorption imaging system described in the second aspect of the present invention.

[0030] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which can be loaded and executed by a processor according to the data acquisition method for a hyperspectral transient absorption imaging system described in the second aspect of the present invention.

[0031] The advantages of the present invention compared to the prior art are:

[0032] The technical solution of the present invention can simultaneously realize spectral resolution, spatial imaging, and time resolution, and realize simultaneous multi-dimensional measurement, rather than different tests being performed on different test platforms, thereby reducing the measurement uncertainty of multiple measurements. At the same time, it not only improves the measurement efficiency, but also has a good guarantee for the accuracy of the analysis, while greatly improving the integration of the measurement system, facilitating measurement and system maintenance.

[0033] The transient absorption spectral imaging system based on focal plane push-scanning spectral imaging of the present invention can simultaneously realize spectral, spatial and temporal multi-dimensional measurements. Through a set of measuring devices, it can realize the measurement of physical quantities such as carrier mobility and diffusion coefficient in photoelectric materials and photovoltaic materials, providing an efficient tool for transient imaging and quantitative analysis of excited states in biological materials.

[0034] The spectral imaging technology of the present invention can organically combine two-dimensional spatial information and one-bit spectral signal. On each spatial information unit, one-dimensional spectral information is expanded. By using spectral information, qualitative and quantitative analysis of materials on each spatial information unit can be achieved. The present invention adopts push-broom spectral imaging to obtain single-wavelength signals with more pixel numbers, thus achieving high spatial resolution and system sensitivity; the prism-grating-prism spectroscopic method based on volume holographic transmission grating achieves technical effects such as high spectral resolution, high optical efficiency, and good spectral linearity. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a hyperspectral transient absorption imaging system provided by an embodiment of the present invention.

[0036] Figure 2 It is a schematic diagram of spectral imaging of the hyperspectral camera assembly 11 provided in an embodiment of the present invention.

[0037] Figure 3 It is a schematic diagram of a transient hyperspectral imaging data cube sequence provided by an embodiment of the present invention.

[0038] Figure 4 It is a flow chart of a data acquisition method of a hyperspectral transient absorption imaging system provided by an embodiment of the present invention.

[0039] Figure 5 It is a structural schematic diagram of an electronic device provided by an embodiment of the present invention.

[0040] Figure numerals: 1-pulse light source; 2-excitation light; 3-detection light; 4-time delay; 5-reflector; 6-beam splitter; 7-microscope objective; 8-stage; 9-filter; 10-imaging mirror; 11-hyperspectral camera assembly; 21-slit; 22-collimator; 23-PGP dispersion unit; 24-focusing mirror; 25-spectral camera. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] Device Example:

[0043] The present invention mainly solves the problem that the existing spectrometer cannot perform transient and steady-state tests on the same test point at the same time, improves the test efficiency, minimizes the possibility of sample denaturation, eliminates the difference in the luminescence process during the test, and realizes in-situ testing.

[0044] A hyperspectral transient absorption imaging system, the structural schematic diagram of which is shown in Figure 1 As shown, specifically including:

[0045] A pulse light source 1, a time delay device 4, a reflector 5, a beam splitter 6, a microscope objective lens 7, a stage 8, a filter 9, an imaging lens 10 and a hyperspectral camera assembly 11 are arranged in sequence;

[0046] The pulse light source 1 is used to generate two pulse lights, one for generating excitation light 2 and one for generating light in a certain spectral range as detection light 3.

[0047] The time delay device 4 is used to generate a certain time interval between the excitation light 2 and the detection light 3.

[0048] Furthermore, the excitation light 2 passes through the reflector 5 and the beam splitter 6, and is collinear with the detection light 3, and then passes through the microscope objective 7 to irradiate the surface of the sample to be measured on the stage 8, and then passes through the filter 9 to filter out the excitation light transmitted from the sample to be measured, and then passes through the imaging mirror 10, and the hyperspectral camera component 11 performs transient spectral imaging.

[0049] Furthermore, the time delay device 4 includes a time delay line and a pulse delay generator, and the time delay line is used to obtain femtosecond time-resolved transient absorption spectrum imaging with different time delays, and the pulse delay generator is used to obtain nanosecond transient absorption spectrum imaging with different time delays.

[0050] Furthermore, the hyperspectral camera assembly 11 specifically includes: a slit 21 , a collimator 22 , a PGP dispersion unit 23 , a focusing lens 24 and a spectral camera 25 which are arranged in sequence.

[0051] The hyperspectral camera assembly 11 is used to realize the functions of dispersion-type spectroscopic spectral imaging and data collection. The specific principle is as follows Figure 2As shown, the slit 21 is placed on the image focal plane, and the light passes through the collimator 22 and enters the PGP dispersion unit 23. After dispersion, it passes through the focusing lens 24, and different bands are focused on different positions of the spectral camera 25. This process completes the spectral imaging at a slit on the image plane, and then the spectral camera 25 performs one-dimensional scanning in the image plane direction, and finally completes the spectral imaging of the entire image plane.

[0052] The PGP dispersion unit 23 is composed of a prism-grating-prism (PGP) structure, wherein the refractive index of the prism is the same as the refractive index of the grating. The present invention adopts the dispersion type spectroscopic technology of the PGP dispersion unit 23, and the prism-grating-prism spectroscopic method based on the volume holographic transmission grating combines the advantages of the prism and grating spectroscopic technology, achieving technical effects such as high spectral resolution, high optical efficiency, and good spectral linearity.

[0053] The technical solution of the present invention realizes the transient absorption microscopic spectral imaging function through push-scanning spectral imaging technology and dispersive spectral imaging technology. The details are as follows:

[0054] The time delay device 4 creates a certain time interval between the excitation light 2 and the detection light 3. Femtosecond light pulses are time delayed using a time delay line, and nanosecond light pulses can be delayed using a pulse delay generator. The two light beams achieve spatial overlap at the front surface of the sample at a certain time interval. After passing through the sample, the detection light 3 is focused on the image focal plane through the imaging mirror 10, and the excitation light 2 is imaged at the slit 21 through the imaging mirror 10 through the filter 9, and then reaches the spectral camera 25 after passing through the collimator 22, the PGP dispersion unit 23, and the focusing mirror 24. The spectral imaging data at the time interval is obtained by pushing and scanning the focal plane through the electrically controlled spectral camera 25. To obtain the data of transient absorption spectral imaging, the spectral camera 25 needs to scan in the time dimension again to obtain a set of data cubes of transient hyperspectral imaging at different time intervals, such as Figure 3 As shown in the figure, ΔI (x, y, t n ) for different times t n , the signal intensity collected in different spaces (x, y), λ1 to λn are different wavelengths for measuring transient spectra.

[0055] The present invention adopts push-broom spectral imaging to obtain single-wavelength signals with a larger number of pixels, thereby achieving high spatial resolution and system sensitivity.

[0056] In the technical solution of the present invention, the push-broom spectral imaging technology and the dispersion type spectroscopic technology are used to realize the transient spectral imaging function, and the spectral imaging data of the sample under test at the time interval is obtained by push-brooming the spectral camera 25 in the focal plane. The spectral camera 25 uses a planar array detector and adopts push-broom spectral imaging. By selecting a linear field of view for imaging, the spatial information unit in each linear field of view is split into a color band through the dispersion element and projected onto the two-dimensional planar array detector. Then scan in one direction to perform two-dimensional spectral imaging.

[0057] The technical solution of the present invention has high spectral precision, small signal obtained on each spectral unit, and low signal-to-noise ratio. In order to obtain spectral resolution and spatial resolution at the same time, the technical solution of the present invention can organically combine two-dimensional spatial information and one-dimensional spectral signal, expand one-dimensional spectral information on each spatial information unit, and use the spectral information of the substance to be tested to achieve qualitative and quantitative analysis of the substance on each spatial information unit. The higher the spectral precision, the stronger the qualitative analysis and quantitative calculation capabilities of the substance. It can realize imaging of transient absorption spectra including but not limited to visible light bands and near-infrared bands, meeting the spectral range of light sources, detection light, and the response range of imaging cameras.

[0058] Method Example:

[0059] The second aspect of the present invention provides a data acquisition method based on a hyperspectral transient absorption imaging system. The method flowchart is as follows: Figure 4 shown.

[0060] A data acquisition method based on a hyperspectral transient absorption imaging system, comprising:

[0061] S1, a pulse light source 1 generates an excitation light 2 and a detection light 3, and an optical chopper is used to chop and modulate the excitation light 2.

[0062] S2, using a time delay device to set the time interval between the excitation light 2 and the detection light 3, the femtosecond light source uses a time delay line, and the nanosecond light source uses a pulse delay generator.

[0063] S3, the optical chopper outputs a synchronization signal for triggering the over-spectrum camera 25 to collect data.

[0064] S4, obtaining transient absorption spectrum imaging data at the time interval.

[0065] S5, repeating steps S2 to S4 to obtain transient absorption spectrum imaging data at a series of time intervals.

[0066] The transient absorption spectral imaging system based on focal plane push-scan spectral imaging of the present invention can simultaneously realize spectral, spatial and temporal multi-dimensional measurements. Through a set of measuring devices, it can realize the measurement of physical quantities such as carrier mobility and diffusion coefficient in photoelectric materials and photovoltaic materials, which is very necessary for transient imaging and quantitative analysis of excited states in biological materials.

[0067] Taking perovskite X-ray detector materials as an example, mobility is an important physical quantity of this functional material. The mobility and diffusion coefficient satisfy , so the mobility can be obtained by measuring the diffusion coefficient.

[0068] According to the semiconductor continuity equation, the excitation light 2 focuses on the sample to generate photogenerated carriers, and the detection light 3 shapes the spatial distribution of the carriers after the laser. The concentration distribution of the carriers in space satisfies the following form, and satisfies the Gaussian distribution at a specific time t. The diffusion coefficient D is obtained by fitting, and the mobility is further obtained.

[0069]

[0070] Wherein, μ is the carrier mobility, D is the carrier diffusion coefficient, e is the electron charge, k is the Boltzmann constant, T is the temperature (in Kelvin), n is the carrier concentration, (x, y, z) are the three-dimensional spatial coordinates, τ is the carrier lifetime, and t is time.

[0071] The technical solution of the present invention can realize spectral resolution, spatial imaging, and time resolution at the same time, and is an effective tool for the above related tests, realizing multi-dimensional measurement synchronously, rather than different tests being performed on different test platforms. Compared with the measurement method of first performing spectral measurement, then selecting a certain wavelength, and then performing transient imaging measurement, this system reduces the measurement uncertainty of multiple measurements, and at the same time not only improves the measurement efficiency, but also has a good guarantee for the accuracy of the analysis, and at the same time greatly improves the integration of the measurement system, facilitating measurement and system maintenance.

[0072] Electronic device embodiment:

[0073] According to a third aspect of the present invention, there is provided an electronic device, comprising:

[0074] at least one processor; and a memory in communication with the at least one processor; wherein,

[0075] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the data acquisition method for a hyperspectral transient absorption imaging system described in the second aspect of the present invention.

[0076] Figure 5 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Figure 5 As shown, the electronic device may include one or more ( Figure 5 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a microprocessor (Microprocessor Unit, referred to as MPU) or a programmable logic device (Programmable logic device, referred to as PLD)) and a memory 104 for storing data. In an exemplary embodiment, the electronic device may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 5 The structure shown is for illustration only and does not limit the structure of the above terminal device. Figure 5 More or fewer components as shown, or with Figure 5 Equivalent functions or comparisons shown Figure 5 A different configuration with more features is shown.

[0077] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the methods in the embodiments of the present invention. The processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, that is, to implement the above-mentioned methods. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the terminal device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0078] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the switching device. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0079] Computer readable storage medium embodiment:

[0080] The fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program can be loaded and executed by a processor to implement the data acquisition method for a hyperspectral transient absorption imaging system as described in the second aspect.

[0081] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hyperspectral transient absorption imaging system, characterized in that: include: A pulse light source (1), a time delay device (4), a reflector (5), a beam splitter (6), a microscope objective lens (7), a stage (8), an optical filter (9), an imaging lens (10), and a hyperspectral camera assembly (11) are arranged in sequence; The pulse light source (1) is used to generate two pulsed lights, one for generating excitation light (2) and one for generating light in a certain spectral range as detection light (3); A time delay device (4) is used to generate a time interval between the excitation light (2) and the detection light (3); A hyperspectral camera component (11) is used to realize dispersion-type spectroscopic spectral imaging and data acquisition functions; The excitation light (2) passes through a reflector (5) and a beam splitter (6), and after being collinear with the detection light (3), the excitation light (2) passes through a microscope objective (7) and is irradiated onto the surface of the sample to be measured on the stage (8). The excitation light transmitted from the sample to be measured is filtered out by a filter (9), and then the excitation light passes through an imaging mirror (10), and a hyperspectral camera assembly (11) performs transient spectral imaging.

2. A hyperspectral transient absorption imaging system according to claim 1, characterized in that: The hyperspectral imaging assembly (11) comprises: a slit (21), a collimating mirror (22), a PGP dispersion unit (23), a focusing mirror (24), and a spectral camera (25) which are arranged in sequence.

3. The hyperspectral transient absorption imaging system according to claim 1, characterized in that: The time delay device (4) comprises: a time delay line and a pulse delay generator; wherein: Time delay line, used to obtain femtosecond time-resolved transient absorption spectroscopy imaging with different time delays; Pulse delay generator for nanosecond transient absorption spectroscopy imaging with different time delays.

4. The hyperspectral transient absorption imaging system according to claim 2, characterized in that: The slit (21) is arranged at the focal plane of the image side, and the light passes through the collimator (22) and enters the PGP dispersion unit (23). After being dispersed, the light passes through the focusing lens (24), and different wavelength bands are focused at different positions of the spectral camera (25). This process completes the spectral imaging at a slit on the image plane, and then the spectral camera (25) performs one-dimensional scanning in the direction of the image plane, and finally completes the spectral imaging of the entire image plane.

5. The hyperspectral transient absorption imaging system according to claim 2, characterized in that: The PGP dispersion unit (23) is composed of a prism-grating-prism structure, wherein the refractive index of the prism is the same as the refractive index of the grating.

6. The hyperspectral transient absorption imaging system according to claim 2, characterized in that: After the time delay device (4) causes the excitation light (2) and the detection light (3) to generate a time interval, the two light beams are spatially overlapped at the front surface of the sample. After passing through the sample, the detection light (3) is focused on the image focal plane through the imaging mirror (10). The excitation light (2) is imaged at the slit (21) through the filter (9) and the imaging mirror (10). After passing through the collimator (22), the PGP dispersion unit (23), and the focusing mirror (24), the light reaches the spectral camera (25). The spectral imaging data at the time interval is obtained by push-scanning the focal plane through the electrically controlled spectral camera (25).

7. The hyperspectral transient absorption imaging system according to claim 6, characterized in that: The spectral camera (25) is also used to scan in the time dimension to obtain data cubes of transient hyperspectral imaging with different time delays.

8. A data acquisition method for a hyperspectral transient absorption imaging system, characterized in that: Based on a hyperspectral transient absorption imaging system according to any one of claims 1 to 7, the data acquisition method comprises: S1, a pulse light source generates excitation light and detection light, and an optical chopper is used to chop and modulate the excitation light; S2, using a time delay device to set the time interval between the excitation light and the detection light, the femtosecond light source uses a time delay line, and the nanosecond light source uses a pulse delay generator; S3, the optical chopper outputs a synchronization signal to trigger the over-spectrum camera to collect data; S4, obtaining transient absorption spectrum imaging data at the time interval; S5, repeating steps S2 to S4 to obtain transient absorption spectrum imaging data at a series of time intervals.

9. An electronic device, characterized in that: include: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the data acquisition method for a hyperspectral transient absorption imaging system as described in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which can be loaded and executed by a processor according to the data acquisition method for a hyperspectral transient absorption imaging system as claimed in claim 8.

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