CN218156509U

CN218156509U - Integrated detection device and integrated detection system for optical collection

Info

Publication number: CN218156509U
Application number: CN202223137343.1U
Authority: CN
Inventors: 赵博文; 张少春; 张振; 刘鑫; 陈道源; 陈宝亮; 关立棚; 陈守祥
Original assignee: Anhui Guosheng Quantum Technology Co ltd
Current assignee: Anhui Guosheng Quantum Technology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2022-12-27
Anticipated expiration: 2032-11-25

Abstract

The utility model provides an integrated detection device and integrated detection system for optics is collected, include: photoelectric detector, condensing lens, the filter, coupling assembling includes the joint ring, the plug-in strip, the plug-in column, be provided with the spliced eye on the plug-in strip, open the inside of plug-in column has the grafting passageway, the one end of plug-in column is installed on the plug-in strip, the grafting passageway is linked together with the spliced eye, condensing lens's one end detachably is pegged graft in the grafting passageway, the outer fringe face of plug-in strip and photoelectric detector's the outer fringe face of detection mouth respectively with the interior anchor ring looks joint of joint ring, the filter is laid between condensing lens and photoelectric detector's detection mouth. On the one hand, the collection detection efficiency of the detection light can be ensured, on the other hand, the installation and debugging are convenient, the stability of light path transmission and the integration level of the light path can be improved, and meanwhile, the integrated structure greatly reduces the size and is beneficial to the industrialized application of the integrated structure.

Description

Integrated detection device and integrated detection system for optical collection

Technical Field

The utility model relates to an optical detection field especially relates to an integrated detection device and integrated detection system for optics is collected.

Background

In the field of optical detection, a photodetector is required to detect a generated optical signal, for example, in quantum sensing measurement based on NV color center, fluorescence excited by diamond is used to measure related physical quantity, when the photodetector is used to detect the generated fluorescence, focusing and filtering of the generated fluorescence are often required first, a light-gathering and filtering optical device and a photodetector are generally adopted to form a collecting light path, each device is independently and separately arranged at a position, and the relative positions of the devices are respectively fixed through corresponding mounting components, so that the detection device is large in size, and when detection is performed, a better detection effect needs to be obtained by adjusting the positions of the devices, and the fine adjustment function of the mounting components is high in requirement. And because each device is independently arranged, the relative position of the devices is easily interfered by environmental factors in the test process, the light path is unstable, and the devices need to be finely adjusted for many times in the test process, thereby generating adverse effect on the detection efficiency. In addition, for each test, the positions of the devices need to be reinstalled and debugged, so that the operation is complicated and the efficiency is low.

Based on the defects in the prior art, a detection device which is convenient to install, stable in performance and high in integration level needs to be designed to meet the detection requirement in the optical field.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides an integrated detection device and an integrated detection system for optical collection, which are used to solve the technical problems of complicated installation and debugging operations and low efficiency of the devices for optical collection in the prior art due to the independent and separate arrangement.

To achieve the above and other related objects, the present invention provides an integrated detection device for optical collection, the detection device comprising: the photoelectric detector comprises a photoelectric detector, a condensing lens, a filter and a connecting assembly, wherein the connecting assembly comprises a clamping ring, an inserting sheet and an inserting column, an inserting hole is formed in the inserting sheet, an inserting channel is formed in the inserting column, one end of the inserting column is installed on one side face of the inserting sheet, the inserting channel is communicated with the inserting hole, one end of the condensing lens is detachably inserted into the inserting channel, the outer edge face of the inserting sheet and the outer edge face of a detection port of the photoelectric detector are respectively clamped with the inner ring face of the clamping ring, the filter is arranged between the condensing lens and the detection port of the photoelectric detector, and the two side faces of the filter are respectively attached to the end face and the detection port of the condensing lens, which are inserted into the inserting channel.

Furthermore, the connecting device also comprises a ring body, the outer edge surface of the ring body is clamped with the inner ring surface of the clamping ring, and one side surface of the ring body is pressed against the side surface of the inserting sheet, which is provided with the inserting column.

Furthermore, the inner ring surface of the clamping ring is provided with threads, and the outer edge surface of the detection port of the photoelectric detector, the outer edge surface of the insertion piece and the outer edge surface of the ring body are provided with thread structures matched with the outer edge surface of the detection port of the photoelectric detector and the outer edge surface of the ring body.

Furthermore, the side surface of the insertion column is provided with a fixing hole communicated with the insertion channel, and the fixing hole is used for inserting a fixing piece to fix the condensing lens inserted into the insertion channel.

In order to achieve the above objects and other related objects, the present invention also provides an integrated detection system based on NV colour center, the detection system comprising:

an integrated detector device for optical collection as described in any one of the preceding, diamond containing NV colour centres, optical fibre;

the end face of one end of the optical fiber is connected with the diamond containing the NV color center, and the end face, which is not attached with the filter, of the condensing lens faces the diamond containing the NV color center.

Further, the diamond containing the NV color center comprises a microwave antenna, wherein the microwave antenna is positioned at the periphery of the diamond containing the NV color center and used for radiating microwaves to the diamond containing the NV color center.

Further, still include magnetic field assembly, magnetic field assembly includes two coils, and two the coil is located respectively the both sides of diamond that contains the NV colour center.

Further, the magnetic field component still includes two magnetic conduction poles, two the coil one-to-one cover is located two on the magnetic conduction pole, two the magnetic conduction pole is located respectively the both sides that contain the diamond of NV colour center, and every magnetic conduction pole do not overlap the cross-sectional diameter of establishing the part of coil is greater than it establishes the central aperture of coil.

The optical fiber is connected with one end of a diamond containing an NV color center and is arranged on the fixing frame, one ends of the two magnetic conducting rods are arranged on the fixing frame, and the end faces of the other ends of the two magnetic conducting rods are opposite.

Further, the mount includes end firmware and the first side spare, two second side spares that the bottom is connected with end firmware, the one end that is connected with the diamond that contains the NV color center of optic fibre is installed on the first side spare, two the one end one-to-one of magnetic conduction pole is installed respectively on two the second side spare.

As described above, the utility model discloses an integrated detecting device and integrated detecting system for optics is collected has following beneficial effect:

1. through setting up the grafting passageway, install condensing lens on the plug-in strip, the rethread with the outer fringe face of plug-in strip and photoelectric detector's the outer fringe face of detection mouth in proper order with the interior anchor ring looks joint of joint ring, and lay the filter plate between condensing lens and the detection mouth to the realization passes through coupling assembling with condensing lens, filter plate, photoelectric detector and is in the same place through coupling assembling, can guarantee the collection detection efficiency of detecting light on the one hand, and on the other hand is convenient for install and debug, can improve the stability of light path transmission and the integrated level of light path, and the structure that integrates simultaneously has reduced the size greatly, is favorable to integrated structure's industrialization to be used.

2. The integrated detection device is applied to a detection system based on the NV color center, the integration degree of the whole system is high, the installation and debugging are convenient, the efficiency is improved, meanwhile, the stability of light path transmission can be improved, the size of the system is reduced, and the popularization and the application in quantum sensing measurement are facilitated.

Drawings

Fig. 1 is a schematic cross-sectional view of an integrated detection device for optical collection according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a connecting component in an embodiment of the integrated detecting device for optical collection according to the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the NV-color-center-based integrated detection system of the present invention;

fig. 5 is a schematic view of a fixing frame structure in an embodiment of the integrated detecting system based on NV color center according to the present invention.

Element number description:

1-a photodetector; 11-a probe port; 2-a condenser lens; 3, a filter plate; 4-connecting the components; 41-snap ring; 42-plug-in piece; 43-plug column; 44-a plug-in channel; 45-ring body; 46-fixing holes; 5-diamond containing NV colour centre; 6-an optical fiber; 7-a microwave antenna; 8-a magnetic field assembly; 81-coil; 82-a flux-conducting rod; 9, a fixing frame; 91-bottom firmware; 92-a first side piece; 93-a second side part; 94-mounting hole.

Detailed Description

The following description is given for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention.

It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the proportion relation or the adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes.

As shown in fig. 1, the utility model provides an integrated detection device for optics is collected can be used to the optical detection field, has the advantage that the integrated level is high, the installation is convenient, and detection device includes: photoelectric detector 1, condensing lens 2, filter 3, coupling assembling 4 includes joint ring 41, plug-in sheet 42, peg graft post 43, be provided with the spliced eye on the plug-in sheet 42, peg graft post 43's inside is opened has grafting passageway 44, the one end of peg graft post 43 is installed on a side of plug-in sheet 42, grafting passageway 44 is linked together with the spliced eye, condensing lens 2's one end detachably pegs graft in grafting passageway 44, the outer fringe face of plug-in sheet 42 and photoelectric detector 1's the outer fringe face of detection mouth 11 respectively with joint ring 41's inner ring looks joint, filter 3 lays between condensing lens 2 and photoelectric detector 1's detection mouth 11, and its both sides face is laminated mutually with terminal surface and detection mouth 11 in condensing lens 2's the insertion grafting passageway 44 respectively. From this, through grafting passageway 44, install collector lens 2 on plug-in sheet 42, the outer fringe face of the detection mouth 11 through with plug-in sheet 42 and photoelectric detector 1 again in proper order with the interior anchor ring looks joint of joint ring 41, and lay filter 3 between collector lens 2 and detection mouth 11, and laminate mutually with collector lens 2 and detection mouth 11, in order to realize collector lens 2, filter 3, photoelectric detector 1 passes through coupling assembling 4 integrated equipment together, on the one hand can guarantee the collection detection efficiency of detecting light, on the other hand is convenient for the installation and debugging, can improve the stability of optical path transmission and the integrated level of optical path, the structure that integrates simultaneously has reduced the size greatly, be favorable to the industrialization of integrated structure to be used.

In an embodiment, as shown in fig. 2, the integrated structure further includes a ring body 45, an outer edge surface of which is clamped with the inner ring surface of the clamping ring 41, and a side surface of which is pressed against the side surface of the plug tab 42 on which the plug post 43 is installed, so as to further enhance the stability of the whole integrated structure.

In an embodiment, as shown in fig. 3, the clamping manner is a threaded clamping manner, a thread is provided on an inner annular surface of the clamping ring 41, and a thread structure matched with an outer edge surface of the detection port 11, an outer edge surface of the insertion piece 42, and an outer edge surface of the ring body 45 of the photodetector 1 are provided, so that the clamping is realized by screwing the thread. When the integrated installation device is installed, the clamping ring 41 is screwed on the outer edge surface of the detection port 11, the filter 3 is placed in the clamping ring 41, the condensing lens 2 is inserted in the insertion channel 44, and finally the insertion sheet 42 is screwed on the inner ring surface of the clamping ring 41, so that the two side surfaces of the placed filter 3 are respectively attached to the end surface of the condensing lens 2 and the detection port 11 to complete the integrated installation.

In one embodiment, the side of the plug-in post 43 is opened with a fixing hole 46 communicating with the plug-in channel 44 for inserting a fixing member to fix the condenser lens 2 inserted into the plug-in channel 44.

In one embodiment, the fixing holes 46 are threaded holes, the fixing member is a screw structure, and a soft material is disposed on an end surface of the fixing member for pressing the condenser lens 2, so as to prevent the screw from wearing the condenser lens.

In one embodiment, the condenser lens 2 is a parabolic lens or a convex lens.

In an embodiment, the condensing lens 2 is inserted into the insertion channel 44, and the insertion channel 44 may be a channel with the same cross section, or a channel shape adapted to the outer side surface of the condensing lens 2.

In an embodiment, as shown in fig. 4-5, the present invention further provides an integrated detection system based on NV color center, the detection system comprising:

an integrated detector for optical collection as in any of the previous embodiments, a diamond 5 containing NV colour centers, an optical fibre 6;

wherein, the end face of one end of the optical fiber 6 is connected with the diamond 5 containing NV color center, and the end face of the condenser lens 2, which is not attached with the filter 3, faces the diamond 5 containing NV color center.

Be applied to in the detecting system based on NV color center with aforementioned integrated detecting device, transmit the laser that contains the diamond of NV color center through optic fibre 6 and make the diamond arouse fluorescence, fluorescence is surveyed by photoelectric detector after being filtered by filter plate 3 after being focused by condensing lens 2, form a stable fluorescence collection route from this, on the one hand can realize effectively collecting the fluorescence that the diamond arouses in quantum sensing measurement, on the other hand, entire system integrated degree is high, be convenient for install and debug, raise the efficiency, can improve the stability of optical path transmission simultaneously, reduce the size of system, be favorable to popularization and application in quantum sensing measurement.

In one embodiment, as shown in fig. 4 and 5, the diamond laser further comprises a microwave antenna 7, wherein the microwave antenna 7 is located at the periphery of the diamond 5 with the NV color center and is used for radiating microwaves to the diamond 5 with the NV color center. The microwave antenna 7 may be a helical antenna or a waveguide antenna. Fig. 4 and 5 show an example of a mounting manner of the spiral antenna, and diamond containing NV color centers is positioned in spiral coils of the spiral antenna. When the microwave antenna 7 is a waveguide antenna, the diamond containing the NV color center is located at the radiation center of the waveguide antenna. Therefore, the diamond containing the NV color center obtains better microwave radiation effect.

In one embodiment, as shown in fig. 4-5, the magnetic field assembly 8 is further included, and the magnetic field assembly 8 includes two coils 81, and the two coils 81 are respectively located at two sides of the diamond 5 having the NV color center. The magnetic field assembly 8 further includes two magnetic conductive rods 82, the two coils 81 are sleeved on the two magnetic conductive rods 82 in a one-to-one correspondence manner, the two magnetic conductive rods 82 are respectively located at two sides of the diamond 5 containing the NV color center, and the cross-sectional diameter of the portion of each magnetic conductive rod 82 not sleeved with the coil 81 is larger than the central aperture of the coil 81 sleeved with the magnetic conductive rod. The magnetic conducting rod 82 is arranged to further enhance the magnetic field intensity, and preferably, the magnetic conducting rod 82 is made of iron or permalloy. Preferably, the outer surface of the magnetic conductive rod 82 is coated with an insulating material to prevent the insulating layer coated on the outer surface of the coil 81 from being worn and short-circuited with the magnetic conductive rod 82. Because the cross-sectional diameter of the portion of the magnetic conductive rod 82 not sleeved with the coil 81 is larger than the central aperture of the coil 81, the coil 81 can be limited on the portion of the magnetic conductive rod 82 sleeved with the coil 81, thereby improving the stability of the generated magnetic field.

In an embodiment, as shown in fig. 5, the optical fiber module further includes a fixing frame 9, one end of the optical fiber 6 connected with the diamond 5 having the NV color center is mounted on the fixing frame 9, one end of each of the two magnetic rods 82 is mounted on the fixing frame 9, and the end faces of the other ends are opposite. As shown in fig. 5, the coil 81 is not sleeved at the end portion of the two magnetic rods 82 opposite to the end surface, the cross-sectional diameter of the coil 81 is larger than the central aperture of the coil 81, the coil 81 is sleeved at the other end, and when the other end of the magnetic rod 82 is mounted on the fixing frame 9, the coil 81 is limited on the magnetic rod 82, so as to further improve the stability of the generated magnetic field.

In one embodiment, as shown in fig. 5, the fixing frame 9 includes a bottom fixing member 91, and a first side member 92 and two second side members 93, the bottom end of which is connected to the bottom fixing member 91, and the mounting end of the microwave antenna 7 is mounted on the bottom fixing member 91 and connected to an external microwave source through the bottom fixing member 91. One end of the optical fiber 6 to which the diamond 5 having the NV color center is connected is mounted on the first side member 92, and the two magnetic conductive rods 82 are respectively mounted on the second side members 93 located on both sides. The fixing frame 9 may be in other forms as long as the optical fiber 6, the magnetic field assembly 8, and the microwave antenna 7 can be fixedly mounted. Carry out integrated installation with diamond NV color center probe 4, microwave antenna 7, magnetic field component 8 through mount 9, can guarantee fluorescence excitation and collection efficiency on the one hand, on the other hand can reduce the structure size, and easy to assemble and debug improves the stability of light path transmission.

In one embodiment, as shown in fig. 5, the bottom fixing member 91, the first side member 92, and the two second side members 93 are all plate-shaped structures, and the two second side members 93 are disposed oppositely. The bottom fixing member 91, the first side member 92 and the two second side members 93 are respectively provided with a mounting hole 94, and the microwave antenna 7, the optical fiber 6 and the two magnetic conducting rods 82 are respectively mounted on the bottom fixing member 91, the first side member 92 and the two second side members 93 through the mounting holes 94. The installation mode can adopt the installation piece in the prior art, such as bolt, fastening ring etc. to install and fix.

To sum up, the utility model discloses in, with condensing lens 2, filter 3, photoelectric detector 1 through coupling assembling 4 integrated equipment together, can guarantee the collection detection efficiency of detecting light on the one hand, on the other hand be convenient for installation and debugging can improve the stability of light path transmission and the integrated level of light path, the structure that integrates simultaneously has reduced the size greatly, is favorable to the industrialization of integrated structure to be used. The integrated detection device is applied to a detection system based on the NV color center, the whole system is high in integration degree, convenient to install and debug and high in efficiency, meanwhile, the stability of optical path transmission can be improved, the size of the system is reduced, and the integrated detection device is favorable for popularization and application in quantum sensing measurement. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An integrated detection device for optical collection, the detection device comprising: photoelectric detector (1), condensing lens (2), filter (3), coupling assembling (4) are including joint ring (41), plug-in strip (42), plug-in post (43), be provided with the spliced eye on plug-in strip (42), the inside of plug-in post (43) is opened has grafting passageway (44), the one end of plug-in post (43) is installed on a side of plug-in strip (42), grafting passageway (44) with the spliced eye is linked together, the one end detachably of condensing lens (2) peg graft in grafting passageway (44), the outer fringe face of plug-in strip (42) and the outer fringe face of the detection mouth (11) of photoelectric detector (1) are respectively with the interior anchor ring looks joint of joint ring (41), filter (3) are laid between condensing lens (2) and the detection mouth (11) of photoelectric detector (1), and its both sides respectively with the inserting of condensing lens (2) terminal surface in grafting passageway (44) and detection mouth (11) are laminated mutually.

2. The integrated detection device for optical collection according to claim 1, characterized in that: the clamping ring further comprises a ring body (45), the outer edge surface of the ring body is clamped with the inner ring surface of the clamping ring (41), and one side surface of the ring body is pressed against the side surface, provided with the inserting column (43), of the inserting sheet (42).

3. The integrated detection device for optical collection according to claim 2, characterized in that: the inner ring surface of the clamping ring (41) is provided with threads, and the outer edge surface of the detection port (11) of the photoelectric detector (1), the outer edge surface of the insertion sheet (42) and the outer edge surface of the ring body (45) are provided with thread structures matched with the outer edge surfaces.

4. The integrated detection device for optical collection according to claim 1, characterized in that: the side surface of the insertion column (43) is provided with a fixing hole (46) communicated with the insertion channel (44) and used for inserting a fixing piece to fix the condensing lens (2) inserted into the insertion channel (44).

5. An integrated detection system based on NV colour centers, the detection system comprising:

an integrated detection device for optical collection according to any of claims 1-4, a diamond (5) containing NV colour centers, an optical fibre (6);

the end face of one end of the optical fiber (6) is connected with the diamond (5) containing the NV color center, and the end face, which is not attached with the filter (3), of the condenser lens (2) faces the diamond (5) containing the NV color center.

6. The integrated NV colour center-based detection system of claim 5, wherein: the diamond containing the NV color center is characterized by further comprising a microwave antenna (7), wherein the microwave antenna (7) is located on the periphery of the diamond containing the NV color center (5) and used for radiating microwaves to the diamond containing the NV color center (5).

7. The NV colour center based integrated detection system of claim 5, wherein: the diamond grinding wheel further comprises a magnetic field assembly (8), wherein the magnetic field assembly (8) comprises two coils (81), and the two coils (81) are respectively located on two sides of the diamond (5) with the NV color center.

8. The integrated NV-color-center-based detection system of claim 7, wherein: magnetic field subassembly (8) still include two magnetic conduction poles (82), two coil (81) one-to-one cover is located two on magnetic conduction pole (82), two magnetic conduction pole (82) are located respectively the both sides that contain NV color center's diamond (5), and every magnetic conduction pole (82) do not overlap and establish the cross-sectional diameter of the part of coil (81) is greater than that it establishes to overlap the central aperture of coil (81).

9. The NV colour center based integrated detection system of claim 8, wherein: the optical fiber is characterized by further comprising a fixing frame (9), one end, connected with a diamond (5) with an NV color center, of the optical fiber (6) is installed on the fixing frame (9), one end of each of the two magnetic conducting rods (82) is installed on the fixing frame (9), and the end faces of the other ends of the two magnetic conducting rods are opposite.

10. The NV-color-center based integrated detection system of claim 9, wherein: mount (9) are including end firmware (91) and bottom first side spare (92), two second side spares (93) that are connected with end firmware (91), the one end that is connected with diamond (5) that contain the NV color center of optic fibre (6) is installed on first side spare (92), two the one end one-to-one respectively of magnetic conduction pole (82) is installed two on second side spare (93).