CN109103734A - Quasi-static noncurrent discharge excitation oxygen-iodine laser - Google Patents
Quasi-static noncurrent discharge excitation oxygen-iodine laser Download PDFInfo
- Publication number
- CN109103734A CN109103734A CN201710474028.2A CN201710474028A CN109103734A CN 109103734 A CN109103734 A CN 109103734A CN 201710474028 A CN201710474028 A CN 201710474028A CN 109103734 A CN109103734 A CN 109103734A
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- discharge
- gas
- iodine
- oxygen
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- 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
- H01S3/036—Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube
-
- 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
- H01S3/038—Electrodes, e.g. special shape, configuration or composition
-
- 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
- H01S3/2215—Iodine compounds or atomic iodine
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The present invention is quasi-static noncurrent discharge excitation oxygen-iodine laser.The present invention is in a hollow airtight chamber, singlet oxygen generator and iodine atom generator and optical resonator are combined as a whole, carry out oxygen and the mixed gas discharges such as iodide and diluent gas, creating singlet oxygen, iodine atom are not only generated in the airtight cavity of gas mixing electric discharge, and generate excitation state iodine atom, and optical resonator installation is coupled in the two sides of confined gas electric discharge chamber, carries out the extraction of iodine laser.This design solves Pressure Recovery System or vacuum system required for general Supersonic Flow electric excitation oxygen-iodine laser, realize quasi-static non-current gas laser system, the perfect combination of singlet oxygen generator, iodine atom generator and gain generator and optical resonator is realized, to realize that the industrial application of electric excitation oxygen-iodine laser is laid a good foundation.
Description
Technical field
The invention belongs to gas or chemical laser fields, and in particular to the noncurrent 1315nm oxygen of gas discharge excitation
Iodine laser.
Background technique
There is the oxygen-iodine laser that wavelength is 1315nm high power, high efficiency, low loss fiber transmission, preferable atmosphere to pass
The advantages that defeated window, is widely used in the fields such as industry, medical treatment, scientific research.Oxygen-iodine laser is usually chemical energy pumping, surpasses at present
Velocity of sound flowing+pneumatic injection pressure recovery working method, this makes oxygen iodine chemical laser, and there is operate not when in use
Just, logistics support is complicated, the unfavorable factors such as bulky, drastically influences the popularization and use of oxygen iodine chemical laser.
Electric excitation oxygen iodine Laser System has obtained laser output power by 2008 since acquisition postiive gain in 2004
Super hectowatt, using mixed gas direct-current discharge, radio frequency discharge or compound discharge mode etc., system is supersonic flow for they
The problem of dynamic low pressure works, brings is exactly to need vacuum tank or pneumatic injection Pressure Recovery System, seriously affects its future
It promotes and uses.
Summary of the invention
The present invention is in a hollow airtight chamber, by singlet oxygen generator and iodine atom generator and gain
Generator is combined as a whole, and oxygen and the mixed gas discharges such as iodine/iodide and diluent gas is carried out, in gas mixing discharge cavity
Creating singlet oxygen, iodine atom are inside not only generated, but also generates excitation state iodine atom, and optical resonator installation is coupled in gas
The two sides of discharging chamber carry out the extraction of iodine laser.Absorbing unit and gas circulating fan are had in cavity.This design solves
Pressure Recovery System or vacuum system required for general Supersonic Flow electric excitation oxygen-iodine laser, realize quasi-static non-
Flowing gas laser work operational mode realizes singlet oxygen generator, iodine atom generator and gain generator and light
The perfect combination of resonant cavity is learned, to realize that the industrial application of electric excitation oxygen-iodine laser is laid a good foundation.
To achieve the purpose of the present invention, specific technical solution includes:
This quasi-static noncurrent electric excitation oxygen-iodine laser, including a hollow airtight chamber, in chamber internal upper part
Equipped with discharge electrode, discharge electrode is a pair of plate electrode or needle plate electrode staggered relatively, plate electrode or needle plate electrode
Electrode pad is rectangle, and interelectrode gas-discharge zone is known as discharge cavity, and discharge electrode can be needle plate electric discharge or lath is put
Electric (also referred to as plate electrode)；The discharge power supply of discharge electrode connection can be radio-frequency power supply, high-voltage DC power supply or high pressure
The pulse power.In offering corresponding through-hole respectively in the chamber sidewall at two end of discharge cavity rectangular electrodes short side, in through-hole
Airtight connection has the internal hysteroscope box for placing hysteroscope respectively at place, and two hysteroscopes constitute optical resonator；In plate electrode in chamber or
Needle plate electrode lower part is equipped with fan, and fan makes the indoor gas of chamber from edge between plate electrode or two comparative electrodes of needle plate electrode
One long side of pole plate is flowed to another long side；Filled with oxygen, containing iodine compound and inert atmosphere gases in chamber.Containing iodate
Conjunction object is one of iodomethane, seven fluorine iodopropanes or two kinds, inert atmosphere gases He, Ar, N2One of or two kinds with
On.It is equipped with gas adsorption unit in the flow path of gas, gas adsorption unit is the soda lime molecular sieve of metal mesh package,
For adsorbing iodine molecule.In offering pumping and/or inflating port in chamber sidewall, three-way valve is set at pumping and/or inflating port,
One interface of three-way valve is connected with hollow chamber, and second interface is connected with vacuum pump or aspiration pump, third interface with to
Gas source is filled to be connected.In offering pressure tap in chamber sidewall, pressure gauge is equipped at pressure tap.Gas is equipped with more in cavity
New homogenizer is provided with molecular sieve adsorption layer absorption iodine molecule comprising reticular structure, includes the column blade knot rotated at a slow speed
The runner of structure, by discharge cavity gas in absence of discharge chamber gas exchanges, update and homogenize.This design solves general
Pressure Recovery System or vacuum system required for Supersonic Flow electric excitation oxygen-iodine laser, to realize electric excitation oxygen iodine laser
The industrial application of device is laid a good foundation.
The beneficial effects of the present invention are:
The present invention solves Pressure Recovery System or vacuum required for general Supersonic Flow electric excitation oxygen-iodine laser
System realizes quasi-static non-current gas laser system, realizes singlet oxygen generator, iodine atom generator and gain hair
The perfect combination of raw device and optical resonator, to realize that the industrial application of electric excitation oxygen-iodine laser is laid a good foundation.
Detailed description of the invention
Fig. 1 is the front view of quasi-static noncurrent discharge excitation oxygen-iodine laser structural schematic diagram.
Fig. 2 is the sectional view of quasi-static noncurrent discharge excitation oxygen-iodine laser structural schematic diagram.
In figure: 1 is hollow airtight chamber, and 2 be discharge electrode, and 3 be absorbing unit, and 4 be cylindrical fan, and 5 be hysteroscope box, 6
It is vacuum pump or aspiration pump for three-way valve, 7,8 be inflation storage tank, and 9 be pressure gauge.
Specific embodiment
The present invention is quasi-static noncurrent discharge excitation oxygen-iodine laser.Discharge excitation oxygen-iodine laser includes singlet state
Oxygen Generator, iodine atom generator, gain generator, optical resonator and gas replenishment homogenizer.General electric excitation oxygen
Iodine laser is supersonic flow kinety system, and creating singlet oxygen is that (the gas glow discharge production containing oxygen is generated by discharge excitation
It is raw), iodine molecule is added in discharge cavity outlet port, obtains iodine atom by creating singlet oxygen dissociation iodine molecule, passes through supersonic nozzle
Creating singlet oxygen and iodine atom near resonant energy transfer obtain excitation state iodine atom, are extracted by optical resonator, lasing goes out iodine laser.This
In creating singlet oxygen be accumulation energy particle, iodine atom be optical medium.The present invention is in a hollow airtight chamber, by singlet state
Oxygen Generator and iodine atom generator and optical resonator are combined as a whole, and carry out oxygen and iodide and diluent gas etc. are mixed
Gas discharge is closed, creating singlet oxygen, iodine atom are not only generated in the airtight cavity of gas mixing electric discharge, but also generate excitation state iodine
Atom, and optical resonator is installed to the two sides for being coupled in confined gas electric discharge chamber, carry out the extraction of iodine laser.It is this to set
Meter solves Pressure Recovery System or vacuum system required for general Supersonic Flow electric excitation oxygen-iodine laser, realizes standard
Static non-current gas laser system, realizes singlet oxygen generator, iodine atom generator and gain generator and optics
The perfect combination of resonant cavity, to realize that the industrial application of electric excitation oxygen-iodine laser is laid a good foundation.
Embodiment
Quasi-static noncurrent discharge excitation oxygen-iodine laser structural schematic diagram such as Fig. 1 and Fig. 2, whole laser is one
In a hollow sealed cylindrical chamber 1, top is equipped with discharge electrode 2 in cylinder chamber room, and discharge electrode is a pair of staggered relatively
Plate electrode, plate electrode plate are rectangle, and interelectrode gas-discharge zone is known as discharge cavity, the electric discharge electricity of discharge electrode connection
Source is radio-frequency power supply.Filled with oxygen, iodomethane, inert gas He in chamber, gas absorption is equipped in the flow path of gas
Unit 3, gas adsorption unit is the soda lime molecular sieve of metal mesh package, for adsorbing iodine molecule.In plate electrode in chamber
Lower part be equipped with fan 4, fan make the indoor gas of chamber between plate electrode or two comparative electrodes of needle plate electrode along pole plate
One long side is flowed to another long side, the cylindrical fan rotated at a slow speed, by the gas in the gas and absence of discharge chamber in discharge cavity
Body exchange is updated and is homogenized.It is corresponding logical in being offered respectively in the chamber sidewall at two end of discharge cavity rectangular electrodes short side
Hole, in through hole, airtight connection has the internal hysteroscope box 5 for placing hysteroscope respectively, and two hysteroscopes constitute optical resonator.In chamber side
Offer pumping and/or inflating port on wall, set three-way valve at pumping and/or inflating port, one interface of three-way valve with it is hollow
Airtight chamber is connected, and second interface is connected with vacuum pump or aspiration pump, and third interface is connected with gas source to be filled.In
Pressure tap is offered in chamber sidewall, is equipped with pressure gauge at pressure tap.When laser works, aspiration pump takes out closed cylinder chamber
Vacuum to 100Pa is less than, be filled with later the certain air pressure of 2k-10kPa mixed gas (oxygen, iodomethane iodine and He/N2 it is mixed
Close gas), startup power supply carries out gas discharge, and laser is exported by optical resonance cavity oscillations.
Claims (8)
1. quasi-static noncurrent discharge excitation oxygen-iodine laser, it is characterised in that:
Including a hollow airtight chamber, it is equipped with discharge electrode in chamber internal upper part, discharge electrode is a pair of plate staggered relatively
The electrode pad of shape electrode or needle plate electrode, plate electrode or needle plate electrode is rectangle, the chamber in two end of rectangle short side
Corresponding through-hole is offered on side wall respectively, airtight connection has the internal hysteroscope box for placing hysteroscope, two chambers respectively in through hole
Mirror constitutes optical resonator；
It is equipped with fan in plate electrode in chamber or needle plate electrode lower part, fan makes the indoor gas of chamber from plate electrode or needle plate
It is flowed along a long side of pole plate to another long side between two comparative electrodes of electrode；
Filled with oxygen, containing iodine compound and inert atmosphere gases in chamber.
2. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that:
It is equipped with gas adsorption unit in the flow path of gas, gas adsorption unit is the soda lime molecule of metal mesh package
Sieve, for adsorbing iodine molecule.
3. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that:
It is one of iodomethane, seven fluorine iodopropanes or two kinds, inert atmosphere gases He, Ar, N containing iodine compound2One of
Or two kinds or more.
4. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that: in offering pumping in chamber sidewall
And/or inflating port, pumping and/or inflating port at set three-way valve, one interface of three-way valve is connected with hollow chamber, second
Interface is connected with vacuum pump or aspiration pump, and third interface is connected with gas source to be filled.
5. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that:
Be equipped with discharge electrode in cavity, interelectrode gas-discharge zone is known as discharge cavity, discharge electrode can be needle plate electric discharge or
Lath discharges (also referred to as plate electrode)；The discharge power supply of discharge electrode connection can be radio-frequency power supply, high-voltage DC power supply
Or high-voltage pulse power source.
6. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that:
The adjustment box of optical mirror slip is installed in the two sides of cavity, forms optical resonator, optical axis is parallel to discharge plate.
7. cavity described in accordance with the claim 1, it is characterised in that:
Discharge electrode is equipped in cavity, interelectrode gas-discharge zone is known as discharge cavity, and fan is cylindrical fan, will be in discharge cavity
Gas in absence of discharge chamber gas exchanges, update and homogenize.
8. discharge excitation oxygen-iodine laser described in accordance with the claim 1, it is characterised in that: survey pressure in offering in chamber sidewall
Mouthful, pressure gauge is equipped at pressure tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474028.2A CN109103734A (en) | 2017-06-21 | 2017-06-21 | Quasi-static noncurrent discharge excitation oxygen-iodine laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474028.2A CN109103734A (en) | 2017-06-21 | 2017-06-21 | Quasi-static noncurrent discharge excitation oxygen-iodine laser |
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| Publication Number | Publication Date |
|---|---|
| CN109103734A true CN109103734A (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474028.2A Pending CN109103734A (en) | 2017-06-21 | 2017-06-21 | Quasi-static noncurrent discharge excitation oxygen-iodine laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265857A (en) * | 2019-06-25 | 2019-09-20 | 中国工程物理研究院化工材料研究所 | A kind of Solid State Laser source |
| CN116404502A (en) * | 2023-06-07 | 2023-07-07 | 北京精亦光电科技有限公司 | Excimer laser discharge cavity structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264866A (en) * | 1995-03-28 | 1996-10-11 | Tokai Univ | Laser oscillator |
| US20050175055A1 (en) * | 2004-02-11 | 2005-08-11 | Levatter Jeffrey I. | Rare gas-halogen excimer lasers with baffles |
| CN101295852A (en) * | 2008-05-19 | 2008-10-29 | 牡丹江师范学院 | Oxygen iodine laser for co-cavity discharging and initiating enclosed circulating impulse |
-
2017
- 2017-06-21 CN CN201710474028.2A patent/CN109103734A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264866A (en) * | 1995-03-28 | 1996-10-11 | Tokai Univ | Laser oscillator |
| US20050175055A1 (en) * | 2004-02-11 | 2005-08-11 | Levatter Jeffrey I. | Rare gas-halogen excimer lasers with baffles |
| CN101295852A (en) * | 2008-05-19 | 2008-10-29 | 牡丹江师范学院 | Oxygen iodine laser for co-cavity discharging and initiating enclosed circulating impulse |
Non-Patent Citations (1)
| Title |
|---|
| 桑凤亭: "《氧碘化学激光器》", 31 December 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265857A (en) * | 2019-06-25 | 2019-09-20 | 中国工程物理研究院化工材料研究所 | A kind of Solid State Laser source |
| CN116404502A (en) * | 2023-06-07 | 2023-07-07 | 北京精亦光电科技有限公司 | Excimer laser discharge cavity structure |
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Application publication date: 20181228 |