CN108346963A - Spherical gas chamber - Google Patents
Spherical gas chamber Download PDFInfo
- Publication number
- CN108346963A CN108346963A CN201810093874.4A CN201810093874A CN108346963A CN 108346963 A CN108346963 A CN 108346963A CN 201810093874 A CN201810093874 A CN 201810093874A CN 108346963 A CN108346963 A CN 108346963A
- Authority
- CN
- China
- Prior art keywords
- cue ball
- ball shell
- thang
- kng
- capillary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/14—Apparatus for producing preselected time intervals for use as timing standards using atomic clocks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/22—Gases
- H01S3/227—Metal vapour
Abstract
Spherical gas chamber is related to atomic air chamber preparing technical field；Including cue ball shell, capillary and 4 thang-kng disks；Wherein, cue ball shell is hollow spheres structure；Capillary stretches into the inside of cue ball shell from top；Thang-kng disk is flat column construction；4 thang-kng disks are fixedly mounted in the side wall of cue ball shell；The top center of the cue ball shell is provided with circular aperture；Capillary is goed deep by circular aperture inside cue ball shell；At the side wall center of the cue ball shell, it is uniformly surrounded with 4 round light holes；4 thang-kng disks are fixedly mounted in 4 light holes；The present invention provides the two-dimentional thang-kng paths of high quality, and effectively slow down the collision relaxation of atom and gas chamber inner wall, to the polarizability for promoting atomic air chamber and macroscopical spin relaxation time.
Description
Technical field
The present invention relates to a kind of atomic air chamber preparing technical field, especially a kind of spherical gas chamber.
Background technology
Atomic air chamber is a kind of simple device for preparing alkali metal atom ground state polarization state, and atomic vapour is stored in one by it
In a confined space, the Effective Regulation of alkali metal atom quantum state is realized using pumping laser.Based on alkali metal atom air chamber
Be widely used it is general, including atomic gyroscope, atom magnetometer, atomic clock, slower rays, quantum storage etc. fields.Atomic air chamber
The factors such as preparation method, including alkali metal type and density, inert gas type and air pressure, the shape of gas chamber shell and volume,
Directly determine the precision of related quantum instrument.
Wherein, it once attempts to use spherical shape for the shape research persons of gas chamber, hemispherical, cylinder, bicylindrical shape, stand
It is rectangular etc. to study influence of the gas chamber shape to its performance.The outer wall of spherical gas chamber is a spherical shell emptied, entire gas chamber
Inner wall there is no dead angle (<90 °), it can effectively avoid atom and enter dead angle, hemispherical and cylindrical air chamber inner wall are equally to utilize
Gas chamber inner wall curvature this advantage.But for spherical gas chamber, due to the presence of gas chamber inner wall curvature, light beam is in gas
Propagation in room is affected, and needs to correct using lens, and there may be stray lights, are unfavorable for the true of gas chamber performance
Expression.Cube and bicylindrical shape gas chamber, which then have four planes, to provide good light for orthogonal pump light and detection light
Window is learned, but they still have 12 and eight right-angle sides respectively.
Invention content
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, spherical gas chamber is provided, the two of high quality are provided
Thang-kng path is tieed up, and effectively slows down the collision relaxation of atom and gas chamber inner wall, to promote the polarizability and macroscopic view of atomic air chamber
Spin relaxation time.
The above-mentioned purpose of the present invention is achieved by following technical solution：
Spherical gas chamber, including cue ball shell, capillary and 4 thang-kng disks；Wherein, cue ball shell is hollow spheres structure；Hair
Tubule stretches into the inside of cue ball shell from top；Thang-kng disk is flat column construction；4 thang-kng disks are fixedly mounted on cue ball shell
In side wall.
The top center of above-mentioned spherical gas chamber, the cue ball shell is provided with circular aperture；Capillary passes through
Circular aperture gos deep into inside cue ball shell.
At above-mentioned spherical gas chamber, the side wall center of the cue ball shell, it is uniformly surrounded with 4 round light holes；4
A thang-kng disk is fixedly mounted in 4 light holes.
In above-mentioned spherical gas chamber, the cue ball shell outer diameter is 2-50mm；Wall thickness is 0.2-2mm；The circular aperture is straight
Diameter is 0.5-5mm；The a diameter of 1.5-3.5mm of light hole.
In above-mentioned spherical gas chamber, the capillary is hollow rod shape structure；Capillary outer diameter is 0.5-5mm, and wall thickness is
0.1-2mm；The thang-kng disc diameter is 1.5-3.5mm；Thickness is 0.2-2mm.
In above-mentioned spherical gas chamber, the cue ball shell, capillary and thang-kng disk are all made of quartz glass or Pyrex
Material.
In above-mentioned spherical gas chamber, alkali metal, buffer gas are filled with to the inner cavity of cue ball shell by capillary and gas is quenched
Body.
In above-mentioned spherical gas chamber, thang-kng disk is fixedly connected by welding or optical contant technique with the inner wall of light hole；
Capillary is fixedly connected by welding or optical contant technique with circular aperture inner wall.
The present invention has the following advantages that compared with prior art：
(1) dead angle is not present in the spherical atomic air chamber inner wall of the present invention, can to avoid atom in cube atomic air chamber into
Enter the possibility at dead angle；
(2) four planes of spherical shell side wall provide good optical window for gas chamber in the present invention, avoid spherical gas
Birefringence and spurious effects of the room to light.
Description of the drawings
Fig. 1 is the fused component schematic diagram of the spherical gas chamber of the present invention；
Fig. 2 is capillary schematic diagram of the present invention；
Fig. 3 is thang-kng disk schematic diagram of the present invention.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments：
It is as shown in Figure 1 the fused component schematic diagram of spherical gas chamber, as seen from the figure, spherical gas chamber includes cue ball shell 1, capillary
Pipe 4 and 4 thang-kng disks 5；Wherein, cue ball shell 1 is hollow spheres structure；Capillary 4 stretches into the inside of cue ball shell 1 from top；
Thang-kng disk 5 is flat column construction；4 thang-kng disks 5 are fixedly mounted in the side wall of cue ball shell 1.Cue ball shell 1,4 and of capillary
Thang-kng disk 5 is all made of quartz glass or borosilicate glass material.All components are glass material, and pass through precision glass welding
Technology realizes prepared by the processing of gas chamber.
It is illustrated in figure 2 capillary schematic diagram, as seen from the figure, the top center of the cue ball shell 1 is provided with circle
Shape aperture 3；Capillary 4 is goed deep by circular aperture 3 inside cue ball shell 1.Capillary 4 passes through welding or optical contant technique and circle
3 inner wall of aperture is fixedly connected
It is illustrated in figure 3 thang-kng disk schematic diagram, as seen from the figure, at the side wall center of cue ball shell 1, is uniformly surrounded with
4 round light holes 2；For passing through for two-way orthogonal laser light beam；4 thang-kng disks 5 are fixedly mounted in 4 light holes 2；
Thang-kng disk 5 is fixedly connected by welding or optical contant technique with the inner wall of light hole 2.
Wherein, 1 outer diameter of cue ball shell is 2-50mm；Wall thickness is 0.2-2mm；It should ensure that the intensity of gas chamber ensures outside again
Volume and light transmittance in the ever-reduced situation lower chamber of diameter；3 a diameter of 0.5-5mm of the circular aperture；The light hole 2
A diameter of 1.5-3.5mm；The capillary 4 is hollow rod shape structure；4 outer diameter of capillary is 0.5-5mm, wall thickness 0.1-2mm；
5 a diameter of 1.5-3.5mm of the thang-kng disk；Thickness is 0.2-2mm.
Alkali metal, buffer gas are filled with to the inner cavity of cue ball shell 1 or gas is quenched by capillary 4.
The preparation method of the spherical shape gas chamber, includes the following steps：
Step (1), cleaning simultaneously dry cue ball shell 1, thang-kng disk 5 and capillary 4；
Step (2), on cue ball shell 1 welding or using optical contant technique connection thang-kng disk 5 and capillary (4) or
Person directly prepares gas chamber shell using die methods；
Step (3) carries out external gas chamber to carry out anti-relaxation plated film after thoroughly cleaning；
Gas chamber is fused on 1 dispenser of cue ball shell, and is connect with external vacuum system by step (4)；
Step (5) is condensed alkali metal atom into cue ball shell 1 using the method for distillation；
Step (6) by a certain amount of inert gas and is quenched gas and is uniformly filled in cue ball shell 1 and (is carried out when needing)；
Capillary 4 in step (7), fusing cue ball shell 1 obtains final spherical gas chamber.
The content that description in the present invention is not described in detail belongs to the known technology of those skilled in the art.
Claims (8)
1. spherical gas chamber, it is characterised in that：Including cue ball shell (1), capillary (4) and 4 thang-kng disks (5)；Wherein, cue ball shell
(1) it is hollow spheres structure；Capillary (4) stretches into the inside of cue ball shell (1) from top；Thang-kng disk (5) is flat column construction；
4 thang-kng disks (5) are fixedly mounted in the side wall of cue ball shell (1).
2. spherical shape gas chamber according to claim 1, it is characterised in that：The top center of the cue ball shell (1) is set
It is equipped with circular aperture (3)；Capillary (4) gos deep into cue ball shell (1) inside by circular aperture (3).
3. spherical shape gas chamber according to claim 2, it is characterised in that：At the side wall center of the cue ball shell (1), uniform ring
It is provided around 4 round light holes (2)；4 thang-kng disks (5) are fixedly mounted in 4 light holes (2).
4. spherical shape gas chamber according to claim 3, it is characterised in that：Cue ball shell (1) outer diameter is 2-50mm；Wall thickness is
0.2-2mm；The a diameter of 0.5-5mm of the circular aperture (3)；The a diameter of 1.5-3.5mm of the light hole (2).
5. spherical shape gas chamber according to claim 4, it is characterised in that：The capillary (4) is hollow rod shape structure；Capillary
It is 0.5-5mm, wall thickness 0.1-2mm to manage (4) outer diameter；The a diameter of 1.5-3.5mm of the thang-kng disk (5)；Thickness is 0.2-
2mm。
6. spherical shape gas chamber according to claim 5, it is characterised in that：The cue ball shell (1), capillary (4) and thang-kng circle
Piece (5) is all made of quartz glass or borosilicate glass material.
7. spherical shape gas chamber according to claim 6, it is characterised in that：It is filled to the inner cavity of cue ball shell (1) by capillary (4)
Enter alkali metal, buffer gas and gas is quenched.
8. spherical shape gas chamber according to claim 7, it is characterised in that：Thang-kng disk (5) passes through welding or optical contant technique
It is fixedly connected with the inner wall of light hole (2)；Capillary (4) is fixed by welding or optical contant technique with circular aperture (3) inner wall
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093874.4A CN108346963A (en) | 2018-01-31 | 2018-01-31 | Spherical gas chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093874.4A CN108346963A (en) | 2018-01-31 | 2018-01-31 | Spherical gas chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108346963A true CN108346963A (en) | 2018-07-31 |
Family
ID=62961726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810093874.4A Pending CN108346963A (en) | 2018-01-31 | 2018-01-31 | Spherical gas chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108346963A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319854A (en) * | 2019-05-17 | 2019-10-11 | 北京航空航天大学 | A kind of alkali metal air chamber structure convenient for making anti-relaxation coating |
| CN110981212A (en) * | 2019-12-18 | 2020-04-10 | 北京航空航天大学 | Method for manufacturing single-layer TCTS anti-relaxation coating in alkali metal gas chamber |
| CN114280911A (en) * | 2020-09-27 | 2022-04-05 | 北京华信泰科技股份有限公司 | CPT atomic clock physical system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010109412A (en) * | 2008-10-28 | 2010-05-13 | Epson Toyocom Corp | Atomic oscillator |
| CN103763847A (en) * | 2014-01-14 | 2014-04-30 | 中国科学院上海光学精密机械研究所 | Integrating sphere magnetism-insensitive imprisoning system |
| CN105310682A (en) * | 2014-07-02 | 2016-02-10 | 精工爱普生株式会社 | Lid, gas cell, sealing method for gas cell, manufacturing method for lid, and lid array substrate |
-
2018
- 2018-01-31 CN CN201810093874.4A patent/CN108346963A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010109412A (en) * | 2008-10-28 | 2010-05-13 | Epson Toyocom Corp | Atomic oscillator |
| CN103763847A (en) * | 2014-01-14 | 2014-04-30 | 中国科学院上海光学精密机械研究所 | Integrating sphere magnetism-insensitive imprisoning system |
| CN105310682A (en) * | 2014-07-02 | 2016-02-10 | 精工爱普生株式会社 | Lid, gas cell, sealing method for gas cell, manufacturing method for lid, and lid array substrate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319854A (en) * | 2019-05-17 | 2019-10-11 | 北京航空航天大学 | A kind of alkali metal air chamber structure convenient for making anti-relaxation coating |
| CN110981212A (en) * | 2019-12-18 | 2020-04-10 | 北京航空航天大学 | Method for manufacturing single-layer TCTS anti-relaxation coating in alkali metal gas chamber |
| CN114280911A (en) * | 2020-09-27 | 2022-04-05 | 北京华信泰科技股份有限公司 | CPT atomic clock physical system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180731 |