CN220304699U - Imaging device of ion trap system - Google Patents
Imaging device of ion trap system Download PDFInfo
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- CN220304699U CN220304699U CN202321934913.1U CN202321934913U CN220304699U CN 220304699 U CN220304699 U CN 220304699U CN 202321934913 U CN202321934913 U CN 202321934913U CN 220304699 U CN220304699 U CN 220304699U
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- ion trap
- electrode
- vacuum cavity
- ions
- ion
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- 238000005040 ion trap Methods 0.000 title claims abstract description 65
- 238000003384 imaging method Methods 0.000 title claims abstract description 46
- 150000002500 ions Chemical class 0.000 claims abstract description 35
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 108010083687 Ion Pumps Proteins 0.000 claims abstract description 16
- 239000011575 calcium Substances 0.000 claims abstract description 16
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 15
- 239000010453 quartz Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002073 fluorescence micrograph Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000960 laser cooling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses an imaging device of an ion trap system, which relates to the technical field of ion traps, and comprises: the device comprises a vacuum cavity, an ion pump, a calcium furnace, a miniature surface electrode ion trap, an imaging lens group, a CCD camera, a photomultiplier and a photon counter; the outer surface of the vacuum cavity is provided with a plurality of observation windows; the ion pump is connected with the vacuum cavity; the calcium furnace is connected with the vacuum cavity; a miniature surface electrode ion trap is arranged in the vacuum cavity; the imaging lens group is provided with a plurality of combined lenses used for forming a light path, and the combined lenses are used for collecting fluorescence emitted by ions and imaging; the CCD camera is used for shooting fluorescent images of ions passing through the imaging lens group, and the photomultiplier is used for receiving and amplifying fluorescent signals of the ions; the photon counter is capable of measuring a fluorescence signal of the ions output through the photomultiplier tube.
Description
Technical Field
The utility model relates to the technical field of ion traps, in particular to an imaging device of an ion trap system.
Background
In the application fields of quantum computing and quantum sensing, as the increase of the temperature of ions can lead to the enhancement of incoherent effect in the information processing process and the reduction of the measurement accuracy of a quantum sensing system, people often need to cool the ions in different ways, and meanwhile, the temperature of the ions needs to be accurately measured. In addition, if the time taken to measure the ion temperature is too long, the speed of information processing in the quantum computing process or the sampling rate of the quantum sensing device will be reduced, so that it is important in the field to measure the ion temperature quickly and accurately.
Measuring ion temperature by image has very wide application field of quantum computing and quantum sensing, so a set of imaging device for measuring ion temperature by image is needed.
Disclosure of Invention
In view of the shortcomings in the prior art, the present utility model provides an imaging device for an ion trap system.
In order to achieve the above purpose, the present utility model may adopt the following technical scheme:
an imaging apparatus of an ion trap system, comprising: the device comprises a vacuum cavity, an ion pump, a calcium furnace, a miniature surface electrode ion trap, an imaging lens group, a CCD camera, a photomultiplier and a photon counter; the outer surface of the vacuum cavity is provided with a plurality of observation windows; the ion pump is connected with the vacuum cavity; the calcium furnace is connected with the vacuum cavity; the vacuum cavity is internally provided with the miniature surface electrode ion trap; the imaging lens group is provided with a plurality of combined lenses used for forming a light path, and the combined lenses are used for collecting fluorescence emitted by ions and imaging; the CCD camera is used for shooting fluorescent images of the ions passing through the imaging lens group, and the photomultiplier tube is used for receiving and amplifying fluorescent signals of the ions; the photon counter is capable of measuring a fluorescence signal of the ions output through the photomultiplier tube.
The imaging device of the ion trap system further comprises a vacuum cavity which is a sphere, and four CF16 quartz observation windows and five CF63 quartz observation windows are arranged on the outer surface of the vacuum cavity.
The imaging device of the ion trap system further comprises two optical flat plates, wherein the two optical flat plates are horizontally arranged and are formed with step heights, and the bottom of the vacuum cavity is fixed through a bracket and forms a height difference with the ion pump.
The imaging device of the ion trap system as described above, further, the miniature surface electrode ion trap comprises a central direct current electrode, a ring-shaped radio frequency electrode and seven pairs of direct current control electrodes.
The imaging device of the ion trap system, further, the vacuum cavity is provided with an electrode lead flange; the miniature surface electrode ion trap is arranged on a tube seat, an electrode of the miniature surface electrode ion trap is connected with an electrode of the tube seat, a pin of the tube seat is inserted into a PCB slot, the PCB slot is fixed on a fixing plate, the edge of the fixing plate is fixedly provided with the calcium furnace, the fixing plate is fixed on the electrode lead flange, and the PCB slot is connected with the electrode on the electrode lead flange.
The imaging device of the ion trap system as described above, further, the vacuum chamber is provided with a voltage source connection flange.
The imaging device of the ion trap system as described above, further, the vacuum chamber is provided with three pairs of magnetic field coils, and the magnetic field coils are wound around the outer periphery of the observation window.
The imaging device of the ion trap system as described above, further, the tube holder is a ceramic tube holder, and the micro surface electrode ion trap is fixed on the ceramic tube holder by vacuum glue.
The imaging device of the ion trap system further comprises a getter pump, wherein the getter pump is connected with the vacuum cavity.
The imaging device of the ion trap system as described above, further, the computer is connected with the CCD camera and the photon counter control signal.
Compared with the prior art, the utility model has the beneficial effects that: the utility model collects fluorescence emitted by ions in the ion trap through the imaging lens group and images the fluorescence, the CCD camera can detect the fluorescence image of the ions, the photomultiplier can receive and amplify the fluorescence signal of the ions, the photon counter is used for measuring the ion fluorescence signal output by the photomultiplier, the ion trap is positioned in the vacuum cavity, the fluorescence emitted by the ions enters the CCD through the rear part of the imaging lens group, the other part of the fluorescence enters the photomultiplier, the output signal of the photomultiplier enters the photon counter to be measured, and the computer can control the operation of the photon counter, the CCD camera, the signal source, the radio frequency switch and other equipment, thereby completing the collection of the ion image.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an imaging device of an ion trap system according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of an ion trap system according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 2 from another perspective;
fig. 5 is a schematic structural diagram of a miniature surface electrode ion trap structure.
1, a vacuum cavity; 2. an ion pump; 3. a CF16 quartz viewing window; 4. a CF63 quartz viewing window; 5. an ion trap electrode direct current voltage signal connection port; 6. an ion trap electrode radio frequency voltage signal connection port; 7. a getter pump; 8. a magnetic field coil; 9. an optical plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Examples:
it should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, 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.
Referring to fig. 1 to 4, an imaging apparatus of an ion trap system, comprising: the ion pump comprises a vacuum cavity 1, an ion pump 2, a calcium furnace, a miniature surface electrode ion trap, an imaging lens group, a CCD camera, a photomultiplier and a photon counter; the outer surface of the vacuum cavity 1 is provided with a plurality of observation windows which can be used for inputting laser and detecting fluorescent signals; the ion pump 2 is connected with the vacuum cavity 1, and the ion pump 2 is used for maintainingThe vacuum degree in the vacuum cavity 1; the calcium furnace is connected with the vacuum cavity 1, and the calcium furnace has the function of ejecting calcium atoms; the vacuum cavity 1 is internally provided with the miniature surface electrode ion trap, the miniature surface electrode ion trap has the function of generating a three-dimensional trapping potential well, and calcium atoms ejected by a calcium furnace (or called an atomic furnace) are generated in a photoionization mode 40 Ca + Loading ions into the trapping well; the imaging lens group is provided with a plurality of combined lenses used for forming a light path, and the combined lenses are used for collecting fluorescence emitted by ions and imaging; the CCD camera is used for shooting fluorescent images of the ions passing through the imaging lens group, and the photomultiplier tube is used for receiving and amplifying fluorescent signals of the ions; the photon counter is capable of measuring a fluorescence signal of the ions output through the photomultiplier tube.
In specific use, the ion trap system comprises a calcium furnace, a vacuum cavity 1, an ion pump 2 and a miniature surface electrode ion trap, wherein the calcium furnace is used for ejecting calcium atoms, the vacuum cavity 1 is provided with a plurality of observation windows, and the miniature surface electrode ion trap is arranged in the vacuum cavity 1; the vacuum cavity 1 is provided with an ion trap electrode direct current voltage signal connection port 5 and an ion trap electrode radio frequency voltage signal connection port 6. In this embodiment, fluorescence emitted by ions in an ion trap is collected and imaged through an imaging lens group, a CCD camera can detect a fluorescence image of the ions, a photomultiplier tube can receive and amplify fluorescence signals of the ions, a photon counter is used for measuring ion fluorescence signals output by the photomultiplier tube, the ion trap is located in a vacuum cavity 1, fluorescence emitted by the ions enters the CCD through the rear part of the imaging lens group, the other part of the fluorescence enters the photomultiplier tube, and signals output by the photomultiplier tube enter a photon counter for measurement.
As an alternative embodiment, in some examples, the vacuum chamber 1 is a sphere, and the vacuum chamber 1 is provided with four CF16 quartz viewing windows 3 and five CF63 quartz viewing windows 4 on the outer surface. Specifically, one CF63 quartz observation window 4 is used for detecting a fluorescence signal, and the other CF63 quartz observation windows 4 and CF16 quartz observation window 3 are used for inputting 866nm laser light and 397nm laser light required for laser cooling. Further, the vacuum chamber 1 is provided with three pairs of magnetic field coils 8, and the magnetic field coils 8 wound around the outer periphery of some of the observation windows can be seen in fig. 3.
As an alternative embodiment, in some examples, two optical flat plates 9 are further included, two optical flat plates 9 are horizontally arranged and formed with a step height, and the bottom of the vacuum chamber 1 is fixed by a bracket and forms a height difference with the ion pump 2.
As an alternative implementation, in some embodiments, the micro surface electrode ion trap includes a central dc electrode, a ring rf electrode, and seven pairs of dc control electrodes. Referring to fig. 2, the outer surface of the vacuum cavity 1 is provided with an ion trap electrode direct current voltage signal connection port 5 and an ion trap electrode radio frequency voltage signal connection port 6. Fig. 5 is a schematic diagram of a miniature surface electrode ion trap structure of an ion trap system according to a preferred embodiment, wherein RF is a radio frequency electrode, A1, A7, B1, B7 are cap electrodes, and other electrodes are compensation electrodes.
As an alternative embodiment, in some embodiments, the vacuum chamber 1 is provided with an electrode lead flange; the miniature surface electrode ion trap is arranged on a tube seat, an electrode of the miniature surface electrode ion trap is connected with an electrode of the tube seat, a pin of the tube seat is inserted into a PCB slot, the PCB slot is fixed on a fixing plate, the edge of the fixing plate is fixedly provided with the calcium furnace, the fixing plate is fixed on the electrode lead flange, and the PCB slot is connected with the electrode on the electrode lead flange. Further, the fixing plate is fixed on the electrode lead flange through a fixing rod. In the above embodiment, further, the tube seat is a ceramic tube seat, and the micro surface electrode ion trap is fixed on the ceramic tube seat through vacuum glue. In the above embodiment, further, the vacuum chamber 1 is provided with a voltage source connection flange, and the voltage source connection flange is connected to an external rf voltage source.
As an alternative embodiment, in some embodiments, a getter pump 7 is further included, and the getter pump 7 is connected to the vacuum chamber 1. Specifically, ionsThe pump 2 and the getter pump 7 function to maintain the vacuum level of the vacuum chamber 1 within the ion trap furnace. Further, the ion pump 2 and the getter pump 7 maintain the vacuum degree in the vacuum chamber 1 at 10 -9 Pa。
As an alternative implementation manner, in some embodiments, the system further includes a computer, where the computer is connected to the CCD camera and the photon counter control signal, and may further be connected to a signal source, a radio frequency switch, and other devices control signals.
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 utility model. 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.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the essence of the present utility model are intended to be included within the scope of the present utility model.
Claims (10)
1. An imaging apparatus of an ion trap system, comprising: the device comprises a vacuum cavity, an ion pump, a calcium furnace, a miniature surface electrode ion trap, an imaging lens group, a CCD camera, a photomultiplier and a photon counter; the outer surface of the vacuum cavity is provided with a plurality of observation windows; the ion pump is connected with the vacuum cavity; the calcium furnace is connected with the vacuum cavity; the vacuum cavity is internally provided with the miniature surface electrode ion trap; the imaging lens group is provided with a plurality of combined lenses used for forming a light path, and the combined lenses are used for collecting fluorescence emitted by ions and imaging; the CCD camera is used for shooting fluorescent images of the ions passing through the imaging lens group, and the photomultiplier tube is used for receiving and amplifying fluorescent signals of the ions; the photon counter is capable of measuring a fluorescence signal of the ions output through the photomultiplier tube.
2. The imaging apparatus of claim 1, wherein the vacuum chamber is a sphere and the vacuum chamber is provided with four CF16 quartz viewing windows and five CF63 quartz viewing windows on an outer surface.
3. The ion trap system of claim 1, further comprising two optical plates horizontally disposed and formed with a stepped height, the bottom of the vacuum chamber being fixed by a bracket and forming a height difference with the ion pump.
4. The imaging apparatus of claim 1, wherein said miniature surface electrode ion trap comprises a central dc electrode, a ring rf electrode, and seven pairs of dc control electrodes.
5. The imaging apparatus of an ion trap system of claim 1, wherein the vacuum chamber is provided with an electrode lead flange; the miniature surface electrode ion trap is arranged on a tube seat, an electrode of the miniature surface electrode ion trap is connected with an electrode of the tube seat, a pin of the tube seat is inserted into a PCB slot, the PCB slot is fixed on a fixing plate, the edge of the fixing plate is fixedly provided with the calcium furnace, the fixing plate is fixed on the electrode lead flange, and the PCB slot is connected with the electrode on the electrode lead flange.
6. The imaging apparatus of an ion trap system of claim 1, wherein the vacuum chamber is provided with a voltage source connection flange.
7. The imaging apparatus of claim 1, wherein the vacuum chamber is provided with three pairs of magnetic field coils, the magnetic field coils being wound around the periphery of the viewing window.
8. The ion trap system of claim 5, wherein the tube holder is a ceramic tube holder, and the miniature surface electrode ion trap is secured to the ceramic tube holder by vacuum glue.
9. The ion trap system imaging apparatus of claim 1, further comprising a getter pump, the getter pump being coupled to the vacuum chamber.
10. The imaging apparatus of an ion trap system of claim 1, further comprising a computer in signal connection with the CCD camera and the photon counter control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321934913.1U CN220304699U (en) | 2023-07-21 | 2023-07-21 | Imaging device of ion trap system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321934913.1U CN220304699U (en) | 2023-07-21 | 2023-07-21 | Imaging device of ion trap system |
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| Publication Number | Publication Date |
|---|---|
| CN220304699U true CN220304699U (en) | 2024-01-05 |
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| CN202321934913.1U Active CN220304699U (en) | 2023-07-21 | 2023-07-21 | Imaging device of ion trap system |
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| CN (1) | CN220304699U (en) |
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- 2023-07-21 CN CN202321934913.1U patent/CN220304699U/en active Active
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