CN106403721B - A kind of broadband lasing safety method and structure - Google Patents
A kind of broadband lasing safety method and structure Download PDFInfo
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- CN106403721B CN106403721B CN201610817167.6A CN201610817167A CN106403721B CN 106403721 B CN106403721 B CN 106403721B CN 201610817167 A CN201610817167 A CN 201610817167A CN 106403721 B CN106403721 B CN 106403721B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 50
- 239000010980 sapphire Substances 0.000 claims abstract description 50
- 239000000725 suspension Substances 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 38
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 33
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000004544 sputter deposition Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 8
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 7
- 230000008021 deposition Effects 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 210000002966 serum Anatomy 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000003599 detergent Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
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- 239000002904 solvent Substances 0.000 claims description 3
- 238000012876 topography Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
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- 239000010408 film Substances 0.000 claims 7
- 241000208340 Araliaceae Species 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
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- 230000003647 oxidation Effects 0.000 claims 1
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- 239000006228 supernatant Substances 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000000790 scattering method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
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- 230000005540 biological transmission Effects 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000007903 penetration ability Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H13/00—Means of attack or defence not otherwise provided for
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Lasers (AREA)
Abstract
A kind of broadband lasing safety method and structure, are related to face coat, nonlinear optics and lasing safety technical field.It is configured by vanadic anhydride preparation, sapphire housing design, carbon nano tube suspension, injection and the sealing series of steps of suspension obtain the structure that can carry out broadband lasing safety, be widely used in optics smart window and lasing safety technical field.It is characterized in that the broadband lasing safety structure is protected using composite multi-component, in conjunction with the band characteristic of current various nonlinear optical limiting materials, pass through thermal induced phase transition optical Limiting and nonlinear scattering method, can more effectively it decay to light laser interference signal, to realize the protection for being continuously adjusted laser to visible light wave range and near infrared band.Method provided by the invention has many advantages, such as simple for process, high yield rate, mature and reliable.
Description
Technical field
The present invention relates to a kind of face coat, nonlinear optics lasing safety technology, especially a kind of lasing safety technology,
Specifically know a kind of broadband lasing safety method and its structure well.
Background technology
Laser technology is widely used in military field as one of the important means of war under the conditions of modern high technology.Especially
It, which is laser weapon, has the advantages that other weapons such as quick (light velocity), accurate, Anti-amyloid-β antibody are incomparable, it will makes not
Carry out war mode and profound change occurs.In all kinds of laser weapons, Laser interferometers are with blinding weapon in some west military powers
Start to equip in the eighties, what only U.S. army disclosed report just there are as many as 7 kinds of models.The object of attack of this kind of weapon is main
It is human eye and electrooptical device.Such as interference, damage and blinding photoelectronic reconnaissance, cannon, navigation and guidance system vision or even people
Eye etc..With the continuous development of this kind of weapon, the continuous improvement of the degree of automation, the threat that this respect is faced is more and more tighter
Weight, corresponding counter measure have caused the great attention of many countries.Carry out laser blinding Protective Research, to enhancing photoelectric guidance
The anti-laser of weapon injures performance, and the penetration ability for improving electro-optical guided weapons is of great significance, and is to win the following height
The basis of technology war.
With the further development of laser weapon, corresponding counter measure will be strategic research topic, be limited using light
Width nonlinear optical material is important one of counter measure.Organic material, high polymer, semi-conducting material and carbon nanomaterial
The protection of laser blinding, the safety of protection staff and detection instrument can be carried out in respectively distinctive wave band.However, in face of wide wave
The characteristics of the shortcomings of continuously adjustable laser of section is narrow there is guard band, new pattern laser blinding weapon can not be well adapted to
Development.
Using composite multi-component safeguard structure, in conjunction with the band characteristic of current various nonlinear optical limiting materials, by thermotropic
Phase transformation optical Limiting and nonlinear scattering method can be designed that with broadband laser optics safeguard structure, and more effectively
Decay to Laser interferometers signal, to realize the protection for being continuously adjusted laser to visible light wave range and near infrared band.
Invention content
It is an object of the invention to be directed to existing light laser signal（Laser power density is in 50W/mm2More than）Lack reason
The problem of safeguard procedures thought, invents a kind of broadband dual laser means of defence, while providing a kind of corresponding safeguard structure,
It is configured by vanadic anhydride preparation, sapphire housing design, carbon nano tube suspension, injection and one system of sealing of suspension
Row step obtains the structure that can carry out broadband lasing safety, is widely used in visible light wave range and near infrared band laser
In protection technology field.
One of technical scheme of the present invention is：
A kind of broadband lasing safety method, it is characterised in that include the following steps：
First, using sapphire as shell, radio frequency is utilized at least in the one side of sapphire shell face laser light incident
Magnetic control sputtering technology deposits vanadium pentoxide films layer, and vanadium pentoxide films layer is more than 50W/mm in laser power density2
Strong laser irradiation when undergo phase transition, to make transmitance≤5% of light laser；
Secondly, carbon nano tube suspension is perfused in sapphire shell, and make through five oxygen on the sapphire shell plane of incidence
Change two vanadium film layers and enters laser beam in sapphire shell all after carbon nano tube suspension from another surface sapphire shell
The another side of body projects, and the carbon nano tube suspension in sapphire shell generates microbubble to the strong of incidence after strong laser irradiation
Laser carries out effectively scattering to further decrease the transmitance of light laser, to make the light laser through sapphire shell in five oxygen
Change 84% or more decaying under the double action of two vanadium film layers and carbon nano tube suspension.
The sapphire material shell is by polishing, having very excellent surface topography, rms surface coarse
Degree is maintained at 3nm hereinafter, and first being dipped in upper detergent with cotton before carrying out magnetron sputtering deposition and gently being cleaned and fall sapphire shell
Then it is distinguished sonic oscillation at least 20 min, then sapphire shell by the dust and particle on surface in acetone and alcohol
Body is cleaned by ultrasonic at least 20 min in deionized water.
The vanadium pentoxide films layer magnetron sputtering deposition parameter be：Oxygen argon flow-rate ratio is 0.11 (1.8/
11.3sccm), base reservoir temperature is 400 DEG C, and sputter temperature is 450 DEG C, sputtering pressure 2Pa, and sputtering time is 35 min, is splashed
Radio pressure is 315 V.
The vanadium pentoxide films layer be one layer of one-component, color be orange-yellow, have it is apparent preferentially
It is orientated, the laser protective film based on thermal induced phase transition principle that thickness is 300-400nm.
Solvent used by the carbon nano tube suspension is benzene or ethanol solution.
A concentration of N=4e14/m3 of the carbon nano tube suspension, sample path length are not less than 10mm, i.e., laser is in carbon nanometer
Stroke in pipe suspension is not less than 10mm；When projectile energy is 0.4J/cm2, microbubble reaches steady in carbon nano tube suspension
Determine state incident laser is carried out to be 10ns the time required to effectively scattering, the transmitance measured is less than 10%.
The carbon nano tube suspension should slowly be poured by inlet in sapphire shell, and blend rubber lid capsule will
Suspension is sealed preservation.
Technical scheme of the present invention second is that：
A kind of broadband lasing safety structure, it includes sapphire shell 4, it is characterized in that the sapphire shell 4 is just
To having vanadium pentoxide films layer 1 by magnetron sputtering method deposition on the plane of incidence of laser light source, it is equipped in sapphire shell 4
The cavity of carbon nano tube suspension 5 is perfused, which is connected with the liquid injection port 2 of perforation sapphire shell 4, and carbon nanotube suspends
Liquid 5 is injected by the liquid injection port 2 in the cavity, is installed additional on one end that the liquid injection port 2 is located at outside sapphire shell 4
There is serum cap capsule 3 to realize cavity and extraneous isolation.
The thickness of the vanadium pentoxide films layer 1 is 300-400nm, preferential 350 nm.
The beneficial effects of the invention are as follows：
The present invention is protected using composite multi-component, in conjunction with the band characteristic of current various nonlinear optical limiting materials, passes through heat
Phase transformation optical Limiting and nonlinear scattering method are caused, can more effectively be decayed to light laser interference signal, to which realization pair can
Light-exposed wave band and near infrared band are continuously adjusted the protection of laser.
The method of the present invention is simple, high yield rate, mature and reliable.
The broadband lasing safety structure of the present invention can be used as optical window, for photoelectricity investigation, cannon, aircraft navigation
In the systems such as missile guidance.Broadband lasing safety component preparation method mature and reliable provided by the invention, process time be short,
It can play in lasing safety field and optics smart window and widely apply.
Description of the drawings
Fig. 1 is facing and side view schematic diagram for the broadband lasing safety structure of the present invention.
Fig. 2 is that this hair is distant broadband lasing safety structure detection schematic diagram.
Fig. 3 is transmitance variation diagram before and after 1024nm Laser interferometers of the present invention.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated.
A kind of preparation method of broadband lasing safety structure, includes the following steps：
（1）First sapphire material is polished, conjunction has very excellent surface topography, rms surface roughness
It is maintained at 3nm or less.Before preparing vanadium oxide film in sapphire material, upper detergent is dipped in cotton first and gently clean indigo plant
Then it is distinguished 20 min of sonic oscillation in acetone and alcohol, then sapphire is existed by the dust and particle of gemstone surface
It is cleaned by ultrasonic 20 min in deionized water.
（2）Using radio-frequency magnetron sputter method, vanadium pentoxide films, used parameter are coated in sapphire material
For：Oxygen argon flow-rate ratio is 0.11 (1.8/11.3sccm), and base reservoir temperature is 400 DEG C, and sputter temperature is 450 DEG C, and sputtering pressure is
2Pa, sputtering time are 35 min, and sputtering voltage is 315 V.
（3）It is being coated with the stabilization of process Chinese medicine moment holding technological parameter, and by the thickness of time control film, is making system
It is standby go out film thickness be maintained between 300-400 nanometers, most preferably 350nm or so, and can and sapphire to meet certain combination strong
Degree requires.Obtained vanadium pentoxide films layer is that one layer of one-component, color are orange-yellow, have and significantly preferentially take
To the laser protective film based on thermal induced phase transition principle.
（4）According to certain component ratio, carbon nano tube suspension is configured, solvent selects benzole soln or ethanol solution（Carbon
Scattering coefficient bigger of the nanotube in ethanol solution, the transmissivity of incident laser is lower, can carry out bigger to light laser signal
Decaying in degree）, solution is stirred evenly by stirring rod, makes a concentration of N=4e of carbon nano tube suspension14/ m3, incident energy
When amount is 0.4J/cm2, microbubble reaches stable state and is taken to incident laser progress effectively scattering in carbon nano tube suspension
Between be 10ns, the transmitance measured be less than 10%, sample path length 10mm, i.e., the width of carbon nanometer visitor's suspension in Fig. 1 left figures,
Namely stroke of the laser in carbon nano suspending liquid.
（5）In order to avoid splashing, suspension should slowly be poured by inlet 2 in sapphire shell 4；Suspension 5 is in shell
It is sealed by serum cap capsule 3 in body 4.
（6）Sapphire shell uses acetone and alcohol wipe clean respectively.It can be suspended from detection device shown in Fig. 2 and carry out
Detection.
Two vanadium film of titanium dioxide is prepared in the enterprising excessively specific technological parameter of sapphire material, has certain knot
Intensity and practical light transmission requirement are closed, and can be undergone phase transition in broadband light laser signal interference, protection is played the role of.For
It prepares that component is pure, crystallinity is high and the vanadium oxide film of excellent optical characteristics, the moment is wanted to keep in magnetron sputtering process
The stabilization of technological parameter；The carbon nano tube suspension configured will be uniformly mixed, and guarantor is sealed at once after injecting sapphire shell
It deposits, becomes the second layer protective barrier of decaying Laser interferometers signal.
Detect example 1.
Such as Fig. 2, the 635nm red lasers of 10W are placed as incident light source in the front end of safeguard structure shown in Fig. 1,
PVM types photodetector is as signal receiving end, by adjusting the intensity of laser, before test safeguard structure is by Irradiation of High
The variation of transmitance afterwards.In visible light and close, middle infrared band, vanadium pentoxide films undergo phase transition the time used and exist
Within 3ms, it is the time required to microbubble reaches stable state to incident laser progress effectively scattering in carbon nano tube suspension
10ns, i.e. the protection response time of composite protection structure are within 3ms.
Detect example 2.
Such as Fig. 2, the 1024nm optical fiber lasers of 20W are placed as incident light source in the front end of safeguard structure shown in Fig. 1,
PVM types photodetector is as signal receiving end, by adjusting the intensity of laser, before test safeguard structure is by Irradiation of High
The variation of transmitance afterwards.It measures in light laser signal（50W/mm2）The light transmission rate of predose film is 91%, after irradiation
Light transmission rate is 5%, and attenuation amplitude is up to 86%（See Fig. 3）.
Detect example 3.
Such as Fig. 2, the 635nm red lasers of 10W are placed as incident light source in the front end of safeguard structure shown in Fig. 1,
PVM types photodetector is as signal receiving end, by adjusting the intensity of laser, before test safeguard structure is by Irradiation of High
The variation of transmitance afterwards.It measures in light laser signal（50W/mm2）The light transmission rate of predose film is 87%, after irradiation
Light transmission rate is 3%, and decaying reaches 84%.
Detect example 4.
Such as Fig. 2, the 532nm green (light) lasers of 15W are placed as incident light source in the front end of safeguard structure shown in Fig. 1,
PVM types photodetector is as signal receiving end, by adjusting the intensity of laser, before test safeguard structure is by Irradiation of High
The variation of transmitance afterwards.It measures in light laser signal（50W/mm2）The light transmission rate of predose film is 88%, after irradiation
Light transmission rate is 3%, and decaying reaches 85%.
Embodiment two.
As shown in Figure 1.
A kind of broadband lasing safety structure, it includes sapphire shell 4, the 4 face laser light of sapphire shell
It is 300-400nm to have thickness by magnetron sputtering method deposition on the plane of incidence in source（Most preferably 350 nm）Vanadium pentoxide films
Layer 1 is equipped with the cavity of perfusion carbon nano tube suspension 5, the note of the cavity and perforation sapphire shell 4 in sapphire shell 4
Liquid mouth 2 is connected, and carbon nano tube suspension 5 is injected by the liquid injection port 2 in the cavity, is located in the liquid injection port 2
Serum cap capsule 3 is added on one end outside sapphire shell 4 to realize cavity and extraneous isolation.The safeguard structure of the present invention
Actually detected device it is as shown in Figure 2.
Part that the present invention does not relate to is same as the prior art or can be realized by using the prior art.
Claims (5)
1. a kind of broadband lasing safety method, it is characterised in that include the following steps：
First, using sapphire as shell, radio frequency magnetron is utilized at least in the one side of sapphire shell face laser light incident
Sputtering technology processed deposits vanadium pentoxide films layer, and vanadium pentoxide films layer is more than 50W/mm in laser intensity2Light laser
It is undergone phase transition when irradiation, to make transmitance≤5% of light laser；The vanadium pentoxide films layer is one layer of one-component
, color be orange-yellow, the laser based on thermal induced phase transition principle that there is apparent preferred orientation, thickness to be 300-400nm it is anti-
Cuticula；
Secondly, carbon nano tube suspension is perfused in sapphire shell, and makes through five oxidations two on the sapphire shell plane of incidence
Vanadium film layer enters the laser beam in sapphire shell all after carbon nano tube suspension from the another side of sapphire shell
It projects, the carbon nano tube suspension in sapphire shell generates microbubble after strong laser irradiation incident light laser
Effect scattering is to further decrease the transmitance of light laser, to make the light laser through sapphire shell in vanadium pentoxide films
84% or more decaying under the double action of layer and carbon nano tube suspension；A concentration of N=4e14/m of the carbon nano tube suspension
3, sample path length is not less than 10mm, i.e. stroke of the laser in carbon nano tube suspension is not less than 10mm；Projectile energy is 0.4J/
When cm2, microbubble reaches stable state and carries out the time required to effectively scattering being 10ns to incident laser in carbon nano tube suspension,
The transmitance measured is less than 10%;
The sapphire material shell is by polishing, there is very excellent surface topography, rms surface roughness to protect
It holds in 3nm hereinafter, and first being dipped in upper detergent with cotton before carrying out magnetron sputtering deposition and gently being cleaned and fall sapphire surface of shell
Dust and particle, then by it in acetone and alcohol distinguish sonic oscillation at least 20 min, then sapphire shell is existed
It is cleaned by ultrasonic at least 20 min in deionized water.
2. according to the method described in claim 1, it is characterized in that the vanadium pentoxide films layer magnetron sputtering deposition ginseng
Number is：Oxygen argon flow-rate ratio is 0.11, and base reservoir temperature is 400 DEG C, and sputter temperature is 450 DEG C, sputtering pressure 2Pa, sputtering time
For 35 min, sputtering voltage is 315 V.
3. according to the method described in claim 1, it is characterized in that solvent used by the carbon nano tube suspension is benzene
Or ethanol solution.
4. according to the method described in claim 1, it is characterized in that the carbon nano tube suspension should be by inlet slowly
It pours into sapphire shell, suspension is sealed preservation by blend rubber lid capsule.
5. a kind of broadband lasing safety structure, it includes sapphire shell（4）, it is characterized in that the sapphire shell（4）
There is vanadium pentoxide films layer by magnetron sputtering method deposition on the plane of incidence of face laser light source（1）, in sapphire shell（4）
In be equipped with perfusion carbon nano tube suspension（5）Cavity, the cavity with perforation sapphire shell（4）Liquid injection port（2）It is connected,
Carbon nano tube suspension（5）Pass through the liquid injection port（2）It injects in the cavity, in the liquid injection port（2）Positioned at sapphire
Shell（4）Serum cap capsule is added on outer one end（3）To realize cavity and extraneous isolation;The vanadic anhydride is thin
Film layer（1）Thickness be 300-400nm；A concentration of N=4e14/m3 of the carbon nano tube suspension, sample path length are not less than
The stroke of 10mm, i.e. laser in carbon nano tube suspension is not less than 10mm；When projectile energy is 0.4J/cm2, carbon nanotube is outstanding
It is 10ns that microbubble, which reaches the time required to stable state carries out effectively scattering to incident laser, in supernatant liquid, and the transmitance measured is less than
10%。
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| CN108572468A (en) * | 2017-03-13 | 2018-09-25 | 深圳大学 | A kind of intelligence laser protection mirror |
| CN108731823B (en) * | 2017-04-20 | 2020-02-07 | 清华大学 | Terahertz wave communication method |
| CN109917498B (en) * | 2017-12-12 | 2020-01-17 | 中国科学院上海硅酸盐研究所 | Dual-mode intelligent response laser protection structure and optical detector with same |
| CN111929758A (en) * | 2020-08-12 | 2020-11-13 | 中国科学院长春光学精密机械与物理研究所 | Laser protective equipment and protective system |
| CN112068234A (en) * | 2020-09-10 | 2020-12-11 | 天津津航技术物理研究所 | Intelligent protection narrowband optical filter |
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| US9268194B2 (en) * | 2006-10-02 | 2016-02-23 | PM & AM Research | Method and technique to control laser effects through tuning of parameters such as repetition rate |
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| CN102747325A (en) * | 2012-07-04 | 2012-10-24 | 华中科技大学 | Preparation method for vanadium dioxide thin film and product thereof, and application of product |
| CN103869574A (en) * | 2014-03-14 | 2014-06-18 | 天津理工大学 | Low-concentration soluble carbon nano-tube suspension liquid limiter based on negative pressure effect |
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