CN218272881U

CN218272881U - Optical detection magnetic resonance light path module

Info

Publication number: CN218272881U
Application number: CN202222638402.7U
Authority: CN
Inventors: 段石生; 彭朝阳; 沈锐
Original assignee: Chinainstru and Quantumtech Hefei Co Ltd
Current assignee: Guoyi Quantum Technology Hefei Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-01-10
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a light detection magnetic resonance light path module, include: the first laminate is provided with a light source hole, and the light source hole is suitable for being opposite to the light source; the second laminate is distributed with the first laminate at intervals, the second laminate is provided with a dichroic mirror, light at the light source hole is reflected to the dichroic mirror to form a laser light path and a collection light path after passing through the dichroic mirror, and a focusing lens is arranged in the collection light path; and the adjusting component is arranged on the first layer plate and is used for adjusting the position of the focusing lens relative to the dichroic mirror. According to the utility model discloses optical detection magnetic resonance light path module, through setting up first plywood and second plywood, guarantee that optical device can rationally arrange on first plywood and second plywood, and set up route and direction of a plurality of speculum in order to change the light source on first plywood and second plywood to for realizing compacter arranging optical device and providing the arrangement condition, and then be convenient for adjust each optical device in the outside.

Description

Optical detection magnetic resonance light path module

Technical Field

The utility model belongs to the technical field of the light path module technique and specifically relates to a light detection magnetic resonance light path module is related to.

Background

Optical Detected Magnetic Resonance (ODMR) refers to a quantum science technique developed based on the nitrogen-vacancy center structure (NV color center for short) in diamond. As one of the key directions of quantum science and technology, the optical system is widely applied to quantum precision measurement, and the development of application fields such as physics, material science and biology is driven, and the optical system of the optical detection magnetic resonance has the function of exciting and reading fluorescence emitted by the NV color center. However, the structure of the optical detection magnetic resonance optical path in the related art is complex, and it is inconvenient to perform adjustment operation on each optical device. Therefore, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an optical detection magnetic resonance optical path module, which is used to solve the problem that the optical detection magnetic resonance optical path module is complicated in structure and not beneficial to adjusting various optical devices.

According to the utility model discloses optical detection magnetic resonance light path module, include: a first laminate formed with light source apertures adapted to face a light source; the second laminate is distributed with the first laminate at intervals, a dichroic mirror is arranged on the second laminate, light rays at the light source hole are reflected to the dichroic mirror to form a laser light path and a collection light path after passing through the dichroic mirror, and a focusing lens is arranged in the collection light path; an adjustment component mounted to the first layer plate and configured to adjust a position of the focusing lens relative to the dichroic mirror.

According to the utility model discloses optical detection magnetic resonance light path module, through setting up first plywood and second plywood, guarantee that optical device can rationally arrange on first plywood and second plywood, and set up route and direction of a plurality of speculum in order to change the light source on first plywood and second plywood to for realizing compacter arranging optical device and providing the arrangement condition, and then be convenient for adjust each optical device in the outside.

According to the utility model discloses optical detection magnetic resonance light path module, the second floor is equipped with dodges the hole, adjusting part includes drive structure, unable adjustment base and sliding seat, unable adjustment base install in first floor, sliding seat movably install in unable adjustment base, drive structure is used for the drive the sliding seat for unable adjustment base is close to or keeps away from towards the direction motion of dichroscope, the upper end of sliding seat is worn to locate dodge the hole with focusing lens links to each other.

According to the utility model discloses optical detection magnetic resonance light path module, the drive structure includes threaded sleeve and threaded rod, threaded sleeve for first floor is rotatable, threaded sleeve cover is located the one end of threaded rod outer and with threaded rod screw-thread fit, the other end of threaded rod with the sliding seat links to each other.

According to the magnetic resonance light path module for optical detection provided by the embodiment of the utility model, the first layer board is provided with a first reflector and a second reflector, and the light at the light source opening is suitable for passing through the first reflector and the second reflector in sequence; the second laminate is provided with a third reflector, and the light reflected by the second reflector is reflected to the dichroic mirror through the third reflector.

According to the utility model discloses optical detection magnetic resonance light path module, the light source hole is for following the thickness direction of first layer board link up and form, first speculum with the height-alike and mirror surface parallel of second speculum.

According to the utility model discloses optical detection magnetic resonance light path module, the incident ray of second mirror with the reflected light of third mirror is parallel.

According to the utility model discloses optical detection magnetic resonance light path module, still be equipped with fourth speculum and fifth speculum in the collection light path, process the collection light of dichroic mirror passes through in proper order fourth speculum and fifth speculum, focusing lens is located the fourth speculum with between the fifth speculum.

According to the utility model discloses optical detection magnetic resonance light path module still includes: and the collected light reflected by the fifth reflector enters the photoelectric detector.

According to the utility model discloses optical detection magnetic resonance light path module still includes: and the laser light which passes through the dichroic mirror is reflected by the sixth reflector and then enters the laser generator.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an optical detection magnetic resonance optical path module according to an embodiment of the present invention;

fig. 2 is a top view of a light detection magnetic resonance optical path module according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an adjusting assembly according to an embodiment of the present invention.

Reference numerals:

a light detection magnetic resonance optical path module 100,

a first layer 1, a light source hole 11, a first reflector 12, a second reflector 13,

a second layer plate 2, an avoidance hole 21, a third reflector 22,

the adjusting component 3, the driving structure 31, the threaded sleeve 311, the threaded rod 312, the fixed base 32, the sliding seat 33,

a dichroic mirror 4, a laser light path 5, a laser generator 51, a sixth reflector 52, a collecting light path 6, a focusing lens 61, a photodetector 62, a fourth reflector 63 and a fifth reflector 64.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

An optical detection magnetic resonance optical path module 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3, including: a first layer plate 1, a second layer plate 2 and an adjusting component 3. Among them, the following are mentioned. First plywood 1 is equipped with light source hole 11, and light source hole 11 is suitable for just right so that the light source sent can penetrate light source hole 11 with the light source, and still is provided with a plurality of reflectors on first plywood 1 for the change in light source route takes place through the reflex action of a plurality of reflectors after the light source wears to establish from light source hole 11, thereby can move light from first plywood 1 to second plywood 2.

That is, the second layer board 2 and the first layer board 1 are distributed at intervals and all the optical devices are arranged, so that the optical detection magnetic resonance optical path module 100 can be more compact in structure, and the adjustment operation of each optical device is more convenient. Wherein, a dichroic mirror 4 is also arranged on the second laminate 2. That is to say that light is at the dichroic mirror 4 of second plywood 2 of shot behind a plurality of speculum, through the effect of dichroic mirror 4 with the transmission path of light divide into laser light path 5 and collection light path 6 to realize the purpose of light beam split. Wherein, including laser generator 51 in the laser light path 5, including photoelectric detector 62 in the collection light path 6, and still be provided with focusing lens 61 in the collection light path 6 in order to be used for the focusing to collecting light.

And the adjusting component 3 is arranged on the first layer plate 1, the adjusting component 3 is connected with the focusing lens 61 and can be used for adjusting the position of the focusing lens 61 relative to the dichroic mirror 4, so that focusing of the collected light in the collecting light path 6 is realized.

Wherein, the embodiment of the utility model provides a set up the light path of objective lens cone in the probe NV colour center department of optical detection magnetic resonance light path module 100, and set up optical detection magnetic resonance light path module 100 in the top position department of objective lens cone to guarantee the whole centrobaric steady of optical detection magnetic resonance light path module 100.

It can be understood that the emission path of light in the optical detection magnetic resonance optical path module 100 of the embodiment of the present invention is: 1. aligning the objective lens barrel light source to the center of the light source hole 11 and emitting light rays, so that the light rays are emitted on the first laminate 1 for multiple times when passing through the light source hole 11, and the light rays can be reflected to the second laminate 2; 2. screening light rays when the light rays pass through the dichroic mirror 4 on the second laminate 2, so that the light rays are divided into collected light rays and excited light rays; 3. the excitation light is reflected to the laser generator 51 under the action of the dichroic mirror 4 and the reflecting mirror and is emitted from the laser generator 51; 4. the collected light is reflected to the photodetector 62 by the mirror and the focusing lens 61 and exits from the photodetector 62.

According to the utility model discloses optical detection magnetic resonance light path module 100, through setting up first plywood 1 and second plywood 2, guarantee that optical device can be rationally arranged on first plywood 1 and second plywood 2, and set up route and direction of a plurality of speculum in order to change light on first plywood 1 and second plywood 2 to provide the arrangement condition for realizing compacter arrangement optical device, and then be more convenient for adjust each optical device in the outside.

In some embodiments, the second ply 2 is positioned above the first ply 1 and spaced parallel to the first ply 1. Note that, as shown in fig. 1, the first layer plate 1 and the second layer plate 2 are the same in size and are each configured as a rectangular plate. Wherein, first plywood 1 and second plywood 2 all are used for arranging optical device, and second plywood 2 and first plywood 1 just set up in the Z direction, not only can reduce the whole area of optical detection magnetic resonance light path module 100 on the horizontal direction, and reduced optical device's quantity and arrangement space for each part is arranged in layers on first plywood 1 and second plywood 2, avoids the structure of homostorey too compact, thereby the regulation operation of being more convenient for.

In some embodiments, the second layer 2 is provided with an escape aperture 21, and the adjustment assembly 3 comprises a driving structure 31, a fixed base 32 and a sliding seat 33. It should be noted that, as shown in fig. 3, the fixing base 32 may be configured as a rectangular structure, and the fixing base 32 is installed on the first layer board 1 and is fixedly connected with the first layer board 1; the bottom surface of the sliding seat 33 is the same as the top surface of the fixed base 32 in size, and the sliding seat 33 is movably installed on the fixed base 32; and the driving structure 31 is used for driving the sliding seat 33 to move towards or away from the dichroic mirror 4 relative to the fixed base 32, so that the focusing lens 61 can slide in the collecting light path 6 as required, and the focusing effect on the light rays is realized.

The length of the avoiding hole 21 in the X direction is greater than the maximum value of the movement path of the focusing lens 61, and the upper end of the sliding seat 33 penetrates through the avoiding hole 21 to be connected with the focusing lens 61, so that the sliding seat 33 can drive the focusing lens 61 to move. Thus, when the sliding base 33 is moved by the driving force of the driving mechanism 31, the focusing lens 61 can move simultaneously with the driving mechanism 31.

In some embodiments, the drive structure 31 includes a threaded sleeve 311 and a threaded rod 312. It should be noted that, as shown in fig. 3, the threaded sleeve 311 is rotatable relative to the first layer plate 1, the threaded sleeve 311 is sleeved outside one end of the threaded rod 312 and is in threaded engagement with the threaded rod 312, and the other end of the threaded rod 312 is connected to the sliding seat 33. The threaded rod 312 is disposed at one side of the sliding seat 33, and an axial direction of the threaded rod 312 is parallel to a sliding track direction of the sliding seat 33.

Therefore, when the sliding seat 33 needs to be adjusted in position, the threaded sleeve 311 is rotated in an external driving manner, so that the threaded rod 312 in threaded connection with the threaded sleeve 311 moves axially, and therefore, the sliding seat 33 fixedly connected with the end of the threaded rod 312 slides, and the sliding direction can be consistent with the moving direction of the threaded rod 312. That is, the slide holder 33 and the threaded rod 312 can be moved simultaneously in a direction to approach or separate from the dichroic mirror 4, so that the position of the focusing lens 61 with respect to the dichroic mirror 4 can be adjusted.

In some embodiments, the first layer 1 is provided with a first reflector 12 and a second reflector 13, and the light at the light source hole 11 is adapted to pass through the first reflector 12 and the second reflector 13 in sequence. It should be noted that, as shown in fig. 1, the first reflector 12 is disposed at the center of the first layer board 1 and is disposed opposite to the light source hole 11, and the second reflector 13 is disposed at the edge of the first layer board 1 and is disposed opposite to the first reflector 12 in the Y direction. It can be understood that when the light ray is perpendicular to the first layer board 1 and enters the light source hole 11, the reflection path of the light ray is perpendicular to the incident path after passing through the first reflector 12, and the light ray is parallel to the first layer board 1; when the light beam enters the second reflector 13 after passing through the first reflector 12, the reflection path of the light beam is perpendicular to the incident path after passing through the second reflector 13, and the light beam is perpendicular to the first layer board 1.

Thus, the light rays enter the first layer 1 and leave the first layer 1, and are perpendicular to the first layer 1. The position of the light relative to the first layer 1 is changed by the action of the first and

second mirrors

12, 13, i.e. in a central position when entering the first layer 1 to an edge position when leaving the first layer 1, thereby facilitating the splitting of the light when entering the second layer 2 and the arrangement of the second layer 2 to reduce the number of optical devices.

In some embodiments, the second layer 2 is provided with a third reflector 22, and the light reflected by the second reflector 13 is reflected to the dichroic mirror 4 via the third reflector 22. As shown in fig. 1, the third reflecting mirror 22 is disposed to face the second reflecting mirror 13 in the Z direction, and the third reflecting mirror 22 is disposed to face the dichroic mirror 4 in the Y direction. It will be appreciated that when light enters from the second reflector 13 and exits from the third reflector 22, the incident path and the reflected path of the light are parallel, and the light passing through the third reflector 22 can be parallel to the second layer plate 2 and directed to the dichroic mirror 4 at the central position of the second layer plate 2.

In some embodiments, the light source holes 11 are formed through the first laminate 1 in the thickness direction thereof, thereby ensuring that light can enter the first laminate 1. The first reflector 12 and the second reflector 13 have the same height and are parallel to each other. Specifically, as shown in fig. 1, the mirror surfaces of the first reflecting mirror 12 and the second reflecting mirror 13 are both inclined by 45 ° with respect to the first layer plate 1, and it is ensured that the mirror surface of the first reflecting mirror 12 and the mirror surface of the second reflecting mirror 13 are arranged in parallel in the Y direction. Thus, when the light passes through the mirror surface of the first reflector 12 and the mirror surface of the second reflector 13, the two normal lines are parallel, that is, the incident light entering the light source hole 11 is ensured to be parallel to the reflected light passing through the second reflector 13, so that the position of the light relative to the first layer plate 1 is changed without changing the moving direction of the light.

In some embodiments, the incident light of the second mirror 13 is parallel to the reflected light of the third mirror 22. It should be noted that the incident light of the second reflector 13 moves opposite to the reflected light of the third reflector 22. Specifically, the mirror surface of the second reflecting mirror 13 and the mirror surface of the third reflecting mirror 22 are both inclined at 45 ° with respect to the second layer 2, and the mirror surface of the second reflecting mirror 13 is disposed perpendicular to the mirror surface of the third reflecting mirror 22. Thereby, it is ensured that the incident light entering the second reflector 13 and the reflected light passing through the third reflector 22 remain parallel but in the opposite direction, so that the arrangement area of the second layer plate 2 can be reduced, thereby achieving a more compact layout design.

In some embodiments, a fourth mirror 63 and a fifth mirror 64 are further disposed in the collection optical path 6. It should be noted that, as shown in fig. 2, collected light formed by light passing through the dichroic mirror 4 passes through a fourth reflecting mirror 63 and a fifth reflecting mirror 64 in sequence, wherein the focusing lens 61 is located between the fourth reflecting mirror 63 and the fifth reflecting mirror 64. It can be understood that the dichroic mirror 4 splits the light so that the collected light can directly penetrate the dichroic mirror 4, and therefore, the collected light is consistent with the moving direction and path of the light entering the dichroic mirror 4. That is, the fourth reflecting mirror 63 is spaced from the dichroic mirror 4 in the Y direction.

The fourth mirror 63 and the fifth mirror 64 are arranged in parallel in the X direction, and the mirror surface of the fourth mirror 63 is arranged perpendicular to the mirror surface of the fifth mirror 64, so that the incident light entering the fourth mirror 63 is parallel to the reflected light passing through the fifth mirror 64 and the movement direction is opposite. And, the focusing lens 61 sliding between the fourth mirror 63 and the fifth mirror 64 can be used to adjust the focal length of the collected light passing through the fourth mirror 63, so that the collecting light path 6 is more focused on the detecting point of the photodetector 62.

In some embodiments, the collection light path 6 further comprises: the photodetector 62 receives the collected light reflected by the fifth mirror 64 and enters the photodetector 62. It should be noted that, as shown in fig. 2, the photodetector 62 and the fifth reflector 64 are disposed at an interval in the Y direction, so as to ensure that the collected light passing through the fifth reflector 64 can smoothly enter the photodetector 62

In some embodiments, the excitation light path further comprises: a sixth reflecting mirror 52 and a laser generator 51, and the laser light passing through the dichroic mirror 4 is reflected by the sixth reflecting mirror 52 and enters the laser generator 51. It should be noted that the light that is reflected by the light source after passing through the dichroic mirror 4 is the excitation light, and the mirror surface of the sixth reflecting mirror 52 is perpendicular to the mirror surface of the dichroic mirror 4, so that the reflected light that passes through the sixth reflecting mirror 52 can be kept parallel to and in the opposite direction to the incident light that enters the dichroic mirror 4. The laser generator 51 and the sixth reflector 52 are spaced in the Y direction, so that the excitation light passing through the sixth reflector 52 can smoothly enter the laser generator 51.

1. In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

2. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

3. In the description of the present invention, "a plurality" means two or more.

4. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

5. In the description of the invention, "on", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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, the schematic representations of the terms used above do not necessarily refer 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical detection magnetic resonance optical path module, comprising:

a first layer plate (1), wherein the first layer plate (1) is provided with a light source hole (11), and the light source hole (11) is suitable for being opposite to a light source;

the second laminate (2) is distributed with the first laminate (1) at intervals, a dichroic mirror (4) is arranged on the second laminate (2), light rays at the light source holes (11) are reflected to the dichroic mirror (4) to form a laser light path (5) and a collection light path (6) after passing through the dichroic mirror (4), and a focusing lens (61) is arranged in the collection light path (6);

an adjustment assembly (3), the adjustment assembly (3) being mounted to the first layer plate (1) and being for adjusting the position of the focusing lens (61) relative to the dichroic mirror (4).

2. A photodetection magnetic resonance light path module according to claim 1, characterized in that the second layer plate (2) is located above the first layer plate (1) and spaced parallel to the first layer plate (1).

3. The optical detection magnetic resonance light path module according to claim 2, wherein the second layer is provided with an avoiding hole (21), the adjusting component (3) includes a driving structure (31), a fixing base (32) and a sliding seat (33), the fixing base (32) is installed on the first layer board (1), the sliding seat (33) is movably installed on the fixing base (32), the driving structure (31) is used for driving the sliding seat (33) to move towards a direction close to or away from the dichroic mirror (4) relative to the fixing base (32), and the upper end of the sliding seat (33) is penetrated through the avoiding hole (21) to connect with the focusing lens (61).

4. The optical detection magnetic resonance optical path module according to claim 3, wherein the driving structure (31) includes a threaded sleeve (311) and a threaded rod (312), the threaded sleeve (311) is rotatable relative to the first layer board (1), the threaded sleeve (311) is sleeved outside one end of the threaded rod (312) and is in threaded fit with the threaded rod (312), and the other end of the threaded rod (312) is connected with the sliding seat (33).

5. The optical detection magnetic resonance optical path module of claim 1,

the first layer plate (1) is provided with a first reflector (12) and a second reflector (13), and light rays at the light source opening are suitable for sequentially passing through the first reflector (12) and the second reflector (13);

the second laminate (2) is provided with a third reflector (22), and light reflected by the second reflector (13) is reflected to the dichroic mirror (4) through the third reflector (22).

6. The optical detection MR optical path module according to claim 5, wherein the light source hole (11) is formed through the first layer board (1) in the thickness direction, and the first reflector (12) and the second reflector (13) have the same height and are parallel to each other.

7. The optical detection mrnas of claim 6, wherein the incident light of the second mirror (13) is parallel to the reflected light of the third mirror (22).

8. The optical detection magnetic resonance optical path module according to claim 1, wherein a fourth mirror (63) and a fifth mirror (64) are further disposed in the collection optical path (6), the collected light passing through the dichroic mirror (4) passes through the fourth mirror (63) and the fifth mirror (64) in sequence, and the focusing lens (61) is located between the fourth mirror (63) and the fifth mirror (64).

9. The optical detection magnetic resonance optical path module of claim 8, further comprising: and the collected light reflected by the fifth reflector (64) enters the photoelectric detector (62).

10. The optical detection magnetic resonance optical path module of claim 1, further comprising: the laser light passes through the dichroic mirror (4) and is reflected by the sixth reflecting mirror (52) and enters the laser generator (51).