CN101174755A - Airborne oxygen-iodine laser device - Google Patents
Airborne oxygen-iodine laser device Download PDFInfo
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- CN101174755A CN101174755A CNA2007101395291A CN200710139529A CN101174755A CN 101174755 A CN101174755 A CN 101174755A CN A2007101395291 A CNA2007101395291 A CN A2007101395291A CN 200710139529 A CN200710139529 A CN 200710139529A CN 101174755 A CN101174755 A CN 101174755A
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- iodine
- laser
- oxygen
- airborne oxygen
- iodine laser
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Abstract
The present invention relates to an oxyiodide laser device, in particular to an oxyiodide laser device adopting the skyborne sunlight stimulation in the stratospheric atmosphere. The present invention consists of a target positioning device, an iodine beam linear-path spraying device and a skyborne oxyiodide laser trigger. The skyborne oxyiodide laser trigger emits a beam of laser along a photo enlarging medium line drafted by a computer, the wavelength of the laser is the same with the photo enlarging medium composed of stimulated iodine atoms in terms of energy level, the beam of the laser is increasingly stronger and stronger due to the amplification of the photo enlarging medium. The beam of laser can burn or damage all kinds of aerocrafts beyond 100km.
Description
Affiliated technical field
The present invention relates to a kind of oxygen-iodine laser device, especially in the atmosphere stratosphere, adopt the sunlight excitation, be fit to airborne oxygen-iodine laser.
Background technology
Up to now, known oxygen-iodine laser is also referred to as chemical oxygen iodine laser with the chemical reaction excitation.Chemical oxygen iodine laser Gas chemical Oxygen-Iodine laser (COIL) is a kind of high-effect, the short wavelength's chemical laser that has grown up gradually since the seventies from last century, and its optical maser wavelength of sending is 1.315 μ m.Its basic principle is to utilize chemical reaction, as by a special gas-liquid phase exoergic chemical reaction, produces metastable oxygen excited state particle O
2(
1Δ
g), O then
2(
1Δ
g) transmit energy with iodine atom I collision, generation excitation state iodine I (
2P
1/2), last iodine I (
2P
1/2) transit to ground state and send near infrared laser.Chemical equation is as follows:
CL
2+2KOH+H
2O
2→2KCL+2HO+O
2(
1Δ
g)
O
2(
1Δ
g)
+I(
2P
3/2)→O
2(X
3∑
- g)+I(
2P
1/2)
I(
2P
1/2)→I(
2P
1/2)+hv(1.315μm)
The core of chemical oxygen iodine laser (COIL) is to produce metastable oxygen excited state particle O
2(
1Δ
g).At present, the purposes of powerful chemical oxygen iodine laser (COIL) mainly is ground-to-air weapon and air weapon, and high power laser can burn various aircraft, guided missile, satellite at the utmost point in the short time.The shortcoming of chemical oxygen iodine laser (COIL) is that volume is big, Heavy Weight, uncomfortable cooperation air weapon.Also useful high-tension electricity, radio frequency, microwave excited low power oxygen-iodine laser in the laboratory in addition, its purposes mainly is scientific research.The shortcoming of this class oxygen-iodine laser is that launching efficiency is low, and power is little.
Summary of the invention
In order to overcome a series of shortcomings of chemical oxygen iodine laser (COIL), the invention provides a kind of airborne oxygen-iodine laser device that in the upper atmosphere stratosphere, adopts the sunlight excitation.
The thinking that the present invention solves its technical problem is a large amount of oxygen excited state particle O that utilize the upper atmosphere stratosphere to exist under solar radiation
2(
1Δ
g) artificially adding the iodine atomic beam at straight path, the iodine atomic beam is when diffusion, and with the collision of oxygen excited state particle, the energy level counter-rotating that resonance transfer is realized the iodine atomic beam externally under the triggering of oxygen-iodine laser laser, realizes the amplification of oxygen iodine laser.The principle that the present invention solves its technical problem is in the upper atmosphere stratosphere, because the sunlight ultra-violet radiation, a large amount of oxygen molecules are excited to oxygen excited state particle O
2(
1Δ
g).Oxygen excited state particle O
2(
1Δ
g) because the strong forbidden transition restriction of itself can not be returned ground state by spontaneous transition, become long-life metastable state.This oxygen excited state particle O
2(
1Δ
g) with the collision of other air molecule after, do not react yet, be the long-life.(list of references: Chinese University of Science and Technology's doctorate paper), its life-span can reach tens of minutes (document announcement average life span 46.7 minutes) according to relevant result of study.Relevant oxygen excited state particle O
2(
1Δ
g) in stratospheric distribution, can from the observational data of halogen occultation test (HALOE), obtain.
HALOE is arranged on an abbreviation that is called halogen occultation experimental rig (Halogen Occultation Experiment) on the Upper Atmosphere Research Satellite (ILARS).It adopts sun occultation method to measure atmosphere minimum gas and aerocolloidal vertical distribution.Promptly when the sun be when just having risen or having fallen with respect to the somewhere, HALOE measure from solar direction and with the tangent height of atmosphere on solar radiation, the vertical distribution of this ground minimum gas of inverting and Aerosol Extinction etc. thus again.It can measure aerial oxygen excitation state O simultaneously
2(
1Δ
g), O
3, HCI, HF, CH
4, H
2O, NO, NO
2, aerosol extinction and temperature etc. vertical distribution.Its horizontal survey scope between north and south latitude 80 degree, the vertical survey scope from 5 kilometers to the 60-130 kilometer.Its vertical resolution is about 500m at stratosphere.This device is from the data of the various minimum gas vertical distribution of starting working so far and issued on the 11st October in 1991.Its observed result once contrasted with the observational data of ATMOS (Atmospheric TraceMolecule Spectroscopy), and was very identical.Here quoting is the data of vertical range 20-50km in the observational data of halogen occultation test (HALOE).
Beginning more than the top, troposphere is stratosphere, greatly about between the 18km-50km of distance ground.Stratospheric temperature is little with height change, is also referred to as stratosphere, temperature (list of references: j.v.iribarne (Canada)＜atmospheric physics 〉) from 223k to 273k.It upwards begins to increase from the stratosphere low layer, reaches the maximum of ozone mixing ratio near the 10kPa of 25km place, up reduces always again, is substantially zero to the middle part ozone mixing ratio in intermediate layer.At these layers, major ingredients N
2And O
2Approximately account for 79% and 21% of total number density respectively, so the average molecular wt of air is little with height change
Photochemical reaction: O
2+ O+M → O
3
O
3+hv→O
2(
1Δ
g)+O(
1D)
The necessary condition that produces photochemistry laser is that (1) exists photochemistry energy storage reaction: the stored energy of (2) photochemistry energy storage reaction must convert the interior energy of iodine atom to, make it reach excitation state, form the exciting media of laser: pumping (pumping) or pumping process that above two processes are exactly photochemistry laser.(3) not only to produce excitation state iodine atom, and will form population inversion, promptly require the speed of photochemistry pumping rate greater than the various excitation processes that disappear.The excitation process that disappears here mainly is that hydrone is to excitation state iodine atom cancellation effect.Fortunately stratospheric hydrone is few, can not produce the bigger excitation that disappears.The speed of the excitation process that disappears is much smaller than the photochemistry pumping rate.
Oxygen excited state particle O
2(
1Δ
g) with behind other gas molecule collision, chemical reaction and energy delivery do not take place, the long life-span (tens of minutes) is therefore arranged.Only at oxygen excited state particle O
2(
1Δ
g) and iodine atomic collision, resonance energy just takes place to be shifted, the iodine I of acquisition excitation state (
2P
1/2).The iodine I of excitation state (
2P
1/2) after the Stimulated Light wavelength is 1.315 μ m light radiation perturbations, the iodine I of excitation state (
2P
1/2) transition returns the ground state of iodine, sends the laser that wavelength is 1.315 μ m again, realized that wavelength is that the laser of 1.315 μ m amplifies.
The technical solution adopted for the present invention to solve the technical problems is: (1) artificially makes the optical amplification medium of energy level counter-rotating (acquisition population) by the straight path of design in advance in stratosphere. and (2) are triggered optical amplification medium with airborne small oxygen iodine laser and are sent light laser.Be described in detail as follows:
Make the optical amplification medium of straight path energy level counter-rotating (can obtain population).By high-altitude vehicle at the stratosphere of distance ground 20km to the 50km place, according to the observational data of halogen occultation test (HALOE), combining target position, the straight line path that designs emission high speed shell or miniature high-speed aircraft.Because high speed shell or miniature high-speed aircraft spray the iodine atomic beam along track.Tiny iodine atomic beam diffuses into thick atomic beam at stratosphere.The iodine atomic beam in diffusion with the collision of the oxygen atom of excitation state, resonance energy shifts the iodine atomic beam that becomes excitation state.The iodine atomic beam of excitation state is exactly an optical amplification medium.The technological difficulties of making the optical amplification medium of straight path energy level counter-rotating (can obtain population) are the linear match of the curve and the iodine atomic beam optical amplification medium of high speed shell or miniature high-speed aircraft running orbit.Fortunately stratospheric atmospheric density is less, and air pressure has only 10kp, and air drag is very little, air flows is very little, and high speed shell or miniature high-speed aircraft speed change little, and the curve of running orbit is near straight line, add the cylinder that is diffused as of iodine atomic beam, help fitting a straight line.The utilization computer combines iodine trajectory parameters and iodine diffusion parameter, drafts the straight line optical amplification medium.
The present invention is by the goal orientation device, iodine atomic beam collimation line tracking tossed device, and the airborne oxygen-iodine laser flip flop is formed.Wherein the goal orientation device is by satellite fix, and long-range radar and computer are formed.Iodine atomic beam collimation line tracking tossed device is made up of high speed shell or miniature high-speed aircraft, and the inner iodine vapor generator of installing of high speed shell or miniature high-speed aircraft carries the iodine amount and can satisfy shedding of tens of km.The airborne oxygen-iodine laser flip flop is made up of small oxygen iodine laser or iodine laser.The goal orientation device is determined the direction of shedding track and the position of iodine atomic beam collimation line tracking tossed device, and the laser direction of airborne oxygen-iodine laser flip flop is determined according to target and iodine atomic beam collimation line tracking by the computer of goal orientation device.
The airborne oxygen-iodine laser flip flop is actual to be a small oxygen iodine laser, also can be iodine laser, and its effect has been light-triggered effect.Need certain power because light triggers, also claim threshold power.Relevant small oxygen iodine laser or iodine laser adopt mature technology and product.The optical amplification medium straight line that the airborne oxygen-iodine laser flip flop is drafted along computer sends beam of laser, and the optical amplification medium energy level that the iodine atom of Wavelength of Laser and excitation state is formed is identical, and this laser beam is more and more stronger under the amplification of optical amplification medium.This Shu Jiguang can burn or damage various aircraft beyond 100km.
Embodiment
Suppose under the sunlight direct projection, north latitude 25 degree, the first aircraft locking same latitude height 100km of height 25km is apart from the second aircraft (low orbit satellite) of 200km.The first aircraft is pressed high speed iodine shell of computer projected path emission, speed be 6 Mach near 1.8km/ second, range is about 90km, be 50 seconds running time.The temperature 240k at 22km place, atmospheric density 10kp does not almost have hydrone.The diffusion velocity of iodine atom is 0.5m/ second, after 50 seconds, diffuses into the cylinder that is close to 50 meters of diameters.In the diffusion process, the oxygen of iodine atom and excitation state resonates, and becomes the iodine atom of excitation state.Owing to do not have hydrone or hydrone few, can not cause the optical quenching of the iodine atom of excitation state.The lifetime of excited state of oxygen reaches tens of minutes, has objectively gathered the ultra-violet radiation energy of the tens of minutes sun.The iodine atom of the excitation state behind the resonance transfer, the gain of every km is more than kilojoule.Earth radius is 4700km, and according to the projectile motion rule, the curve fit straight line portion is near 50km.This moment, the first aircraft was launched a branch of iodine laser, and the luminous power behind the 50km reaches kilojoules up to a hundred.Because high light has the self focusing phenomenon, is mapped to million Jiao that reach of second aircraft after the focusing.The luminous energy of million burnt levels can directly burn or damage the second aircraft.
The present invention has huge military using value, and its utilization can significantly increase the national defence ability.Its principle might develop into novel high-altitude radar, finds and destroy stealth aircraft or all kinds of aircraft.
Claims (6)
1. airborne oxygen-iodine laser device, it is characterized in that by the goal orientation device, iodine atomic beam collimation line tracking tossed device, the airborne oxygen-iodine laser flip flop is formed, and (1) artificially makes the optical amplification medium of energy level counter-rotating (acquisition population) by the straight path of design in advance in stratosphere. and (2) are triggered optical amplification medium with airborne small oxygen iodine laser and are sent light laser.
2. a kind of airborne oxygen-iodine laser device according to claim 1 is characterized in that: the goal orientation device is by satellite fix, and long-range radar and computer are formed.
3. a kind of airborne oxygen-iodine laser device according to claim 1, it is characterized in that: iodine atomic beam collimation line tracking tossed device is made up of high speed shell or miniature high-speed aircraft, the inner iodine vapor generator of installing of high speed shell or miniature high-speed aircraft carries the iodine amount and can satisfy shedding of tens of km.
4. a kind of airborne oxygen-iodine laser device according to claim 1 is characterized in that: the airborne oxygen-iodine laser flip flop is made up of small oxygen iodine laser or iodine laser.
5. a kind of airborne oxygen-iodine laser device according to claim 1 is characterized in that: the laser direction of airborne oxygen-iodine laser flip flop is determined according to target and iodine atomic beam collimation line tracking by the goal orientation device.
6. a kind of airborne oxygen-iodine laser device according to claim 1 is characterized in that: the laser direction of airborne oxygen-iodine laser flip flop is determined according to target and iodine atomic beam collimation line tracking by the goal orientation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101395291A CN101174755A (en) | 2007-09-30 | 2007-09-30 | Airborne oxygen-iodine laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101395291A CN101174755A (en) | 2007-09-30 | 2007-09-30 | Airborne oxygen-iodine laser device |
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| Publication Number | Publication Date |
|---|---|
| CN101174755A true CN101174755A (en) | 2008-05-07 |
Family
ID=39423083
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|---|---|---|---|
| CNA2007101395291A Pending CN101174755A (en) | 2007-09-30 | 2007-09-30 | Airborne oxygen-iodine laser device |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813136A (en) * | 2020-07-02 | 2020-10-23 | 中国人民解放军国防科技大学 | Method for quickly forming extinction type bioaerosol at preset height |
-
2007
- 2007-09-30 CN CNA2007101395291A patent/CN101174755A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111813136A (en) * | 2020-07-02 | 2020-10-23 | 中国人民解放军国防科技大学 | Method for quickly forming extinction type bioaerosol at preset height |
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Open date: 20080507 |