CN113805128B - Automatic optical path adjusting method and device for optical detection magnetic resonance spectrometer - Google Patents
Automatic optical path adjusting method and device for optical detection magnetic resonance spectrometer Download PDFInfo
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Abstract
The invention discloses an automatic optical path adjusting method and device of a light detection magnetic resonance spectrometer, wherein the light detection magnetic resonance spectrometer comprises a convex lens, the convex lens is arranged on a displacement table, the displacement table comprises an x axis, a y axis and a z axis which are mutually perpendicular, and the method comprises the following steps: respectively obtaining fluorescence intensities corresponding to different coordinates of an x axis, a y axis and a y axis; obtaining a first curve, a second curve and a third curve according to fluorescence intensities corresponding to different coordinates of an x axis, a y axis and a y axis; fitting the first curve, the second curve and the third curve respectively to obtain the position of the first central peak, the position of the second central peak and the position of the third central peak; and determining the position of the displacement platform according to the positions of the first central peak, the second central peak and the third central peak so as to adjust the optical path. The method realizes automatic adjustment of the light path, can ensure high collection efficiency of fluorescence, and has the advantages of simple structure, automatic adjustment, high precision, stability and short time consumption.
Description
Technical Field
The invention relates to the technical field of optical path adjustment, in particular to an optical path automatic adjustment method and device of a light detection magnetic resonance spectrometer.
Background
Optical DETECTED MAGNETIC Resonance (ODMR) is a quantum science technology developed by using a diamond nitrogen-vacancy structure (NV color center). As one of the key directions of quantum science and technology, the optical detection magnetic resonance spectrometer is widely applied to the fields of quantum precision measurement, quantum computation and the like, and drives the development of application fields of physics, material science, biology and the like.
The optical detection magnetic resonance spectrometer mainly comprises a microwave part, an optical part, an electronic part and a magnet part, and is a scientific instrument developed based on the technology.
However, the optical path may be shifted after the ODMR spectrometer is used for a long time, and although the collection efficiency of fluorescence can be ensured by adjusting the collection optical path, the adjustment is manually performed at present, and the adjustment process is cumbersome, time-consuming and accompanied by some risks, and the adjustment process is slightly not noticed and may be mistakenly touched with other equipment, so that reworking is needed to be solved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide an automatic optical path adjusting method for an optical detection magnetic resonance spectrometer, which solves the problems of troublesome and time-consuming adjustment of optical paths in the related art, and has the advantages of simple structure, automatic adjustment, high precision, stability, short time consumption, and capability of ensuring high collection efficiency of fluorescence for users.
A second object of the present invention is to provide an optical path automatic adjusting device of a photodetection magnetic resonance spectrometer.
A third object of the present invention is to propose an electronic device.
A fourth object of the present invention is to propose a computer readable storage medium.
To achieve the above object, an embodiment of the first aspect of the present invention provides a method for automatically adjusting an optical path of a light detection magnetic resonance spectrometer, the light detection magnetic resonance spectrometer including a convex lens, the convex lens being mounted on a displacement table, the displacement table including an x-axis, a y-axis and a z-axis perpendicular to each other, wherein the method includes: respectively obtaining fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis; obtaining a first curve, a second curve and a third curve according to the fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis; fitting the first curve, the second curve and the third curve respectively to obtain the position of a first central peak, the position of a second central peak and the position of a third central peak; and determining the position of the displacement table according to the positions of the first central peak, the second central peak and the third central peak so as to adjust the light path.
In addition, the optical path automatic adjustment method of the optical detection magnetic resonance spectrometer according to the above embodiment of the present invention may further have the following additional technical features:
According to one embodiment of the present invention, the acquiring fluorescence intensities corresponding to different coordinates of the x-axis, the y-axis and the y-axis includes: taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the x axis; taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the y axis; and taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
According to one embodiment of the invention, the first curve, the second curve and the third curve are fitted by means of gaussian functions, respectively.
According to the optical path automatic adjustment method of the optical detection magnetic resonance spectrometer, the fluorescent intensities corresponding to the x-axis, the y-axis and the y-axis of the displacement table can be respectively obtained, the first curve, the second curve and the third curve are obtained according to the fluorescent intensities corresponding to the x-axis, the y-axis and the y-axis, the first curve, the second curve and the third curve are respectively fitted, the position of the first central peak, the position of the second central peak and the position of the third central peak are obtained, and the position of the displacement table is determined according to the position of the first central peak, the position of the second central peak and the position of the third central peak so as to adjust the optical path. Therefore, the problems that the light path is troublesome and time-consuming to adjust in the related technology are solved, automatic adjustment of the light path is realized, high collection efficiency of fluorescence can be guaranteed, and the fluorescent light collecting device is concise in structure, high in accuracy, stable and short in time consumption.
To achieve the above object, a second aspect of the present invention provides an optical path automatic adjusting device of a light detection magnetic resonance spectrometer, the light detection magnetic resonance spectrometer including a convex lens, the convex lens being mounted on a displacement table, the displacement table including an x-axis, a y-axis and a z-axis perpendicular to each other, wherein the device includes: the first acquisition module is used for respectively acquiring fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis; the second acquisition module is used for acquiring a first curve, a second curve and a third curve according to the fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis; the third acquisition module is used for fitting the first curve, the second curve and the third curve respectively to obtain the position of the first central peak, the position of the second central peak and the position of the third central peak; and the adjusting module is used for determining the position of the displacement table according to the position of the first central peak, the position of the second central peak and the position of the third central peak so as to adjust the optical path.
According to an embodiment of the present invention, the first obtaining module is specifically configured to: taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the x axis; taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the y axis; and taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
According to one embodiment of the invention, the first curve, the second curve and the third curve are fitted by means of gaussian functions, respectively.
According to the optical path automatic adjusting device of the optical detection magnetic resonance spectrometer, the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis of the displacement table can be respectively obtained, the first curve, the second curve and the third curve are obtained according to the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis, the first curve, the second curve and the third curve are respectively fitted, the position of the first central peak, the position of the second central peak and the position of the third central peak are obtained, and the optical path is adjusted according to the position of the first central peak, the position of the second central peak and the position of the third central peak. Therefore, the problems that the light path is troublesome and time-consuming to adjust in the related technology are solved, automatic adjustment of the light path is realized, high collection efficiency of fluorescence can be guaranteed, and the fluorescent light collecting device is concise in structure, high in accuracy, stable and short in time consumption.
To achieve the above object, an embodiment of a third aspect of the present invention provides an electronic device, including: the automatic optical path adjusting method of the optical detection magnetic resonance spectrometer is realized when the processor executes the program.
To achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements the above-mentioned optical path automatic adjustment method of a photodetection magnetic resonance spectrometer.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a method for automatically adjusting the optical path of a photodetection magnetic resonance spectrometer in accordance with an embodiment of the present invention;
Figure 2 is a schematic diagram of the structure of a photodetection magnetic resonance spectrometer in accordance with one embodiment of the present invention;
Fig. 3 is a block schematic diagram of an optical path automatic adjusting device of a photodetection magnetic resonance spectrometer according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes an automatic optical path adjusting method and device of a light detection magnetic resonance spectrometer according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for automatically adjusting an optical path of a photodetection magnetic resonance spectrometer according to an embodiment of the present invention. In this embodiment, the photodetection magnetic resonance spectrometer comprises a convex lens mounted on a displacement stage comprising an x-axis, a y-axis and a z-axis that are perpendicular to each other.
As shown in fig. 1, the optical path automatic adjustment method of the optical detection magnetic resonance spectrometer comprises the following steps:
S1, respectively acquiring fluorescence intensities corresponding to different coordinates of an x axis, a y axis and a z axis.
According to one embodiment of the present invention, obtaining fluorescence intensities corresponding to different coordinates of an x-axis, a y-axis and a z-axis, respectively, includes: taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the x axis; taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the y axis; and taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
It will be appreciated that as shown in fig. 2, the optical detection magnetic resonance spectrometer of the embodiment of the present invention may include: lasers, dichroic mirrors, objective lenses, diamond samples, convex lenses, pinhole, single photon detectors (APDs). Wherein, the laser can generate 520nm green light, and the green light is focused on the diamond sample by the objective lens through the reflection of the bicolor mirror. The NV color center is excited by green light to generate red fluorescence, which is collected by a lens, passes through a dichroic mirror, and is focused by a convex lens onto a small hole with the diameter of 20 um. Because all NV in the area where green light passes through can be excited, the generated fluorescence can be collected by the objective lens, the effect of the small holes is to perform spatial filtering, when the positions of the small holes are coincident with the focal point of the lens, only the fluorescence generated at the focal point of the objective lens can pass through the small holes, so that the fluorescence background can be greatly reduced, and the spatial resolution of the system can be greatly improved. Thereby enabling detection of a single color center.
However, since the aperture diameter is small, most of the fluorescence is filtered out by the aperture if the focal point of the lens is not coincident with the center of the aperture, and the collection efficiency of the fluorescence is low.
Therefore, the convex lens can be arranged on a three-dimensional displacement table, and the purpose of adjusting the light path can be achieved by moving the displacement table so as to move the lens position.
Specifically, the position of the convex lens only affects the part of the collecting light path, so that the fluorescent intensity emitted by the NV color center can be considered to be unchanged on the premise of ensuring that the laser power is unchanged, and the purpose of optimizing the fluorescent collecting efficiency of the light path can be achieved by optimizing the finally detected fluorescent intensity. Thus, the convex lens can be mounted on a displacement stage, which can include three axes perpendicular to each other, an x axis, a y axis, and a z axis, wherein the x axis, the y axis, and the z axis can be independently moved, and all positions can be ensured to be moved within a movement range of a cube.
It should be noted that, in the embodiment of the invention, a controller may be provided and connected with the displacement platform, the controller may be connected to the computer through a USB interface, and a user may perform man-machine interaction through software on the computer, so as to implement operation of the displacement platform, and when the displacement platform is operated to move, the convex lens is moved, so as to achieve the purpose of adjusting the optical path.
Further, the fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis can be measured by a single photon detector, wherein the single photon detector can be made by an Avalanche Photodiode (APD), fluorescence is focused on a photosurface of the APD through an optical path, the APD uploads the photon number collected in unit time in real time, the total number of photons in a certain period of time can be read through software, real-time measurement of the fluorescence intensity can be realized, and the fluorescence intensity can be compared after being converted into the same time length.
S2, obtaining a first curve, a second curve and a third curve according to fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis.
It can be understood that after the fluorescent intensities corresponding to different coordinates are obtained, the embodiment of the invention can draw a curve by taking the coordinate value as the abscissa and the fluorescent intensity as the ordinate, wherein a first curve can be drawn according to the fluorescent intensities corresponding to different coordinates of the x-axis, a second curve can be drawn according to the fluorescent intensities corresponding to different coordinates of the y-axis, and a third curve can be drawn according to the fluorescent intensities corresponding to different coordinates of the z-axis. It should be noted that, in the embodiment of the present invention, the coordinate value may be plotted on the ordinate, and the fluorescence intensity may be plotted on the abscissa, which is not particularly limited herein.
And S3, fitting the first curve, the second curve and the third curve respectively to obtain the position of the first central peak, the position of the second central peak and the position of the third central peak.
According to one embodiment of the invention, the first curve, the second curve and the third curve are fitted by means of gaussian functions, respectively.
S4, determining the position of the displacement table according to the positions of the first central peak, the second central peak and the third central peak so as to adjust the optical path.
Thus, after the displacement stage is moved in accordance with the above steps, the position at which the fluorescence reading is maximum can be reached. When the laser intensities are the same, the fluorescence intensity is the same, and the position with the maximum fluorescence count is collected, namely the position with the highest collection efficiency of the corresponding red light, namely the position of the optimal light path.
According to the optical path automatic adjustment method of the optical detection magnetic resonance spectrometer, which is provided by the embodiment of the invention, the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis of the displacement table can be respectively obtained, the first curve, the second curve and the third curve are obtained according to the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis, the first curve, the second curve and the third curve are respectively fitted, the position of the first central peak, the position of the second central peak and the position of the third central peak are obtained, and the position of the displacement table is determined according to the position of the first central peak, the position of the second central peak and the position of the third central peak so as to adjust the optical path. Therefore, the problems that the light path is troublesome and time-consuming to adjust in the related technology are solved, automatic adjustment of the light path is realized, high collection efficiency of fluorescence can be guaranteed, and the fluorescent light collecting device is concise in structure, high in accuracy, stable and short in time consumption.
Fig. 3 is a block schematic diagram of an optical path automatic adjusting device of a photodetection magnetic resonance spectrometer according to an embodiment of the present invention. In this embodiment, the photodetection magnetic resonance spectrometer comprises a convex lens mounted on a displacement stage comprising an x-axis, a y-axis and a z-axis that are perpendicular to each other.
As shown in fig. 3, the optical path automatic adjusting device of the optical detection magnetic resonance spectrometer comprises: the first acquisition module 100, the second acquisition module 200, the third acquisition module 300, and the adjustment module 400.
The first obtaining module 100 is configured to obtain fluorescence intensities corresponding to different coordinates of the x-axis, the y-axis and the z-axis respectively; the second obtaining module 200 is configured to obtain a first curve, a second curve, and a third curve according to fluorescence intensities corresponding to different coordinates of the x-axis, the y-axis, and the z-axis. The third obtaining module 300 is configured to fit the first curve, the second curve, and the third curve to obtain a position of the first central peak, a position of the second central peak, and a position of the third central peak. The adjustment module 400 is configured to determine a position of the displacement stage according to the position of the first central peak, the position of the second central peak, and the position of the third central peak, so as to adjust the optical path.
According to one embodiment of the present invention, the first acquisition module is specifically configured to: taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the x axis; taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the y axis; and taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
According to one embodiment of the invention, the first curve, the second curve and the third curve are fitted by means of gaussian functions, respectively.
It should be noted that the explanation of the foregoing embodiment of the optical path automatic adjustment method for the photodetection magnetic resonance spectrometer is also applicable to the optical path automatic adjustment device for the photodetection magnetic resonance spectrometer of this embodiment, and will not be repeated here.
According to the optical path automatic adjusting device of the optical detection magnetic resonance spectrometer, which is provided by the embodiment of the invention, the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis of the displacement table can be respectively obtained, the first curve, the second curve and the third curve are obtained according to the fluorescent intensities corresponding to the different coordinates of the x axis, the y axis and the y axis, the first curve, the second curve and the third curve are respectively fitted, the position of the first central peak, the position of the second central peak and the position of the third central peak are obtained, and the position of the displacement table is determined according to the position of the first central peak, the position of the second central peak and the position of the third central peak so as to adjust the optical path. Therefore, the problems that the light path is troublesome and time-consuming to adjust in the related technology are solved, automatic adjustment of the light path is realized, high collection efficiency of fluorescence can be guaranteed, and the fluorescent light collecting device is concise in structure, high in accuracy, stable and short in time consumption.
An embodiment of the present invention provides an electronic device, including: the automatic optical path adjusting method of the optical detection magnetic resonance spectrometer is realized when the processor executes the program.
The embodiment of the invention provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, realizes the automatic adjustment method of the optical path of the optical detection magnetic resonance spectrometer.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. An automatic optical path adjusting method of a light detection magnetic resonance spectrometer, wherein the light detection magnetic resonance spectrometer comprises a convex lens, the convex lens is arranged on a displacement table, the displacement table comprises an x axis, a y axis and a z axis which are perpendicular to each other, and the method comprises:
respectively obtaining fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis;
obtaining a first curve, a second curve and a third curve according to the fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis;
Fitting the first curve, the second curve and the third curve respectively to obtain the position of a first central peak, the position of a second central peak and the position of a third central peak; and
And determining the position of the displacement table according to the positions of the first central peak, the second central peak and the third central peak so as to adjust the light path.
2. The method for automatically adjusting an optical path of a photodetection magnetic resonance spectrometer according to claim 1, wherein the respectively acquiring fluorescence intensities corresponding to different coordinates of the x-axis, the y-axis, and the y-axis comprises:
Taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the x axis;
taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the y axis;
And taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
3. The method for automatically adjusting an optical path of a photodetection magnetic resonance spectrometer according to claim 1, wherein,
Fitting the first curve, the second curve and the third curve respectively through a Gaussian function.
4. An automatic light path adjusting device of a light detection magnetic resonance spectrometer, which is characterized in that the light detection magnetic resonance spectrometer comprises a convex lens, the convex lens is arranged on a displacement table, the displacement table comprises an x axis, a y axis and a z axis which are perpendicular to each other, wherein the device comprises:
the first acquisition module is used for respectively acquiring fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis;
The second acquisition module is used for acquiring a first curve, a second curve and a third curve according to the fluorescence intensities corresponding to different coordinates of the x axis, the y axis and the z axis;
The third acquisition module is used for fitting the first curve, the second curve and the third curve respectively to obtain the position of the first central peak, the position of the second central peak and the position of the third central peak; and
And the adjusting module is used for determining the position of the displacement table according to the position of the first central peak, the position of the second central peak and the position of the third central peak so as to adjust the optical path.
5. The automatic optical path adjusting device of a photodetection magnetic resonance spectrometer according to claim 4, wherein the first acquisition module is specifically configured to:
Taking the displacement table as a center, keeping the y axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the x axis;
taking the displacement table as a center, keeping the x axis and the z axis unchanged, and obtaining corresponding fluorescence intensities of the displacement table at different coordinates of the y axis;
And taking the displacement table as a center, keeping the x axis and the y axis unchanged, and obtaining the corresponding fluorescence intensity of the displacement table at different coordinates of the z axis.
6. The apparatus for automatically adjusting an optical path of a photodetection magnetic resonance spectrometer according to claim 4,
Fitting the first curve, the second curve and the third curve respectively through a Gaussian function.
7. An electronic device, comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for automatically adjusting the optical path of the optical detection magnetic resonance spectrometer according to claims 1-3 when the processor executes the program.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a method for automatically adjusting the optical path of a photodetection magnetic resonance spectrometer as claimed in claims 1-3.
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| CN106356707A (en) * | 2016-11-25 | 2017-01-25 | 中国工程物理研究院应用电子学研究所 | Optical path adjusting device and method of quasi-three-level laser amplifying system |
| CN107356820A (en) * | 2017-06-07 | 2017-11-17 | 南京邮电大学 | A kind of electromagnetic field near field imaging system and method based on pulse optical detection magnetic resonance |
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