CN203732563U - Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method - Google Patents
Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method Download PDFInfo
- Publication number
- CN203732563U CN203732563U CN201420099866.8U CN201420099866U CN203732563U CN 203732563 U CN203732563 U CN 203732563U CN 201420099866 U CN201420099866 U CN 201420099866U CN 203732563 U CN203732563 U CN 203732563U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- liquid
- plastic sleeve
- port
- short straight
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a device for preparing a large-cone-angle optical fiber probe by an inverted tube corrosion method. The method for optical fiber probe preparing at present is complex in operation and not high in light collection efficiency. The device comprises a right-angle bracket, an optical fiber, a plastic sleeve and a plastic beaker. The plastic sleeve is integrally J-shaped and is fixed on the right-angle bracket. The inside of the plastic beaker is internally filled with bromnaphthalene solution, hydrofluoric acid liquid and sealing liquid from bottom to top. A short straight pipe part and a bent pipe part of the plastic sleeve are arranged in the bromnaphthalene solution. One end of the optical fiber extends out of a port of the short straight pipe part and is disposed in the hydrofluoric acid liquid, and the other end of the optical fiber extends out of a port of a long straight pipe part. The device of the utility model is simple, and convenient to operate. Low requirement on the stability of environment and corrosive liquid is maintained. The probe surface is smooth, the light transmission loss is small, and the preparation repeatability is good. A larger-cone-angle optical fiber probe than that obtained by a traditional upright tube corrosion method is obtained.
Description
Technical field
The utility model relates to a kind of device that pipe etch is prepared large cone angle optical fiber probe of being inverted.
Technical background
The application of optical microscope for scanning near field (SNOM) in the numerous areas such as physics, chemistry, material science, life science, the micro-processing of optics and spectral measurement is increasingly extensive.Wherein utilizing SNOM to carry out spectral investigation to low-dimensional Jie's sight system of nanoscale, is one of developing direction of the tool application prospect of SNOM.In the spectrographic detection of nanoscale, how effectively to improve intensity and the optical resolution of the spectral information that gathers, become the matter of utmost importance in SNOM improvement.Research shows, the fundamental way of its solution is exactly to improve the collection efficiency of sample surface near field optic information as far as possible.Improve the preparation technology of probe, can repeatedly prepare in a large number the microprobe that most advanced and sophisticated yardstick is little, shape is determined, light collection efficiency is high and have great significance.Theoretical calculating and all confirmations of experiment, the probe that the probe that needle point is short, cone angle is large is longer than needle point, cone angle is little has better near-field information capacity gauge.
The method of preparing at present optical fiber probe has the method such as complex method and laser ablation of molten daraf(reciprocal of farad), Turner chemical corrosion method, pipe etch, stretching-corrosion.Molten daraf(reciprocal of farad) is prepared probe, and fast, detecting probe surface is smooth, and optical transmission loss is little, and shortcoming is to draw cone equipment price costliness, needs accurate control, complicated operation, and the needle point of preparation is carefully grown, and cone angle is less, and light collection efficiency is not high.Turner chemical corrosion subtraction unit is simple to operation, and shortcoming is that detecting probe surface quality is easily subject to the impact of environment, and especially on the pattern impact of its needle point obviously, the needle surface of preparation is coarse conventionally in the small concussion of liquid level, and optical transmission loss is large.The complex method of stretch-corrosion can be prepared the optical fiber probe of larger cone angle, but does not overcome the inherent defect of molten daraf(reciprocal of farad) and chemical corrosion method.Laser ablation is irradiation time by the distance that regulates optical fiber and oil reservoir-air interface, can prepare the probe of different cone angle, but require the power of laser instrument higher, and apparatus expensive, is difficult to promote.
The people such as R.Stockle propose a kind of new method of pipe corrosion, directly the optical fiber with tubular polymer overcoat are vertically inserted to HF acid corrosion liquid, and corrosion process is carried out in columniform pipe.Due to capillary effect, add the convection current of HF acid corrosion liquid and the effect of concentration gradient, HF acid corrosion liquid forms miniflow upwards reaction step by step in tube chamber, makes tube edges corrosion very fast.Because the isotropy of optical fiber, through the corrosion of certain hour, at a suitable temperature, can obtain the probe of the large cone angle in small-bore.The method experimental provision is simple, easy to operate, low to the stability requirement of environment, corrosive liquid, and detecting probe surface is smooth, and optical transmission loss is little, has good preparation repeatability, can prepare multiple samples simultaneously.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of device that pipe etch is prepared large cone angle optical fiber probe of being inverted is provided.
The utility model comprises a right angle rack, optical fiber, plastic sleeve and a plastic beaker.
Described right angle rack comprises the pole of vertical setting and the crossbeam vertical with pole; Plastic sleeve comprises parallel long straight-tube portion and short straight tube part, and connects respectively the bent tube section of long straight-tube portion and short straight tube part, and plastic sleeve entirety is J type; The long straight-tube portion of plastic sleeve is fixed on the crossbeam of support, and optical fiber is through plastic sleeve setting.
How immersion liquid of bromo, hydrofluorite liquid and confining liquid are housed in described plastic beaker from the bottom to top successively; The short straight tube part of plastic sleeve and bent tube section are arranged on bromo how in immersion liquid, and bromo is the port of immersion liquid submergence short straight tube part how; The port of short straight tube part is stretched out in one end of optical fiber, and is positioned at hydrofluorite liquid, and the other end of optical fiber stretches out the port of long straight-tube portion.
Described confining liquid is sunflower oil, isooctane, dimethylbenzene or m-xylene.
Described optical fiber is for removing plastics jacket layer or overlay, and with the optical fiber of plastics covering; Described plastics covering can be by hydrofluorite Liquid Penetrant, and not by hydrofluorite liquid corrosion.
Stretch out one section of optical fiber of short straight tube part port of plastic sleeve perpendicular to the how interface of immersion liquid and hydrofluorite liquid of bromo.
In the utility model, be inverted in HF acid corrosion liquid with the optical fiber of plastics covering, core material is SiO
2, there is chemical reaction with HF acid:
SiO
2?+?4HF?→?SiF
4?+2H
2O
3SiF
4?+?2H
2O?→?SiO
2?+?2H
2SiF
6
HF acid corrosion optical fiber derives from two aspects, is that profile of optic fibre directly contacts with HF on the one hand, and above formula reaction occurs; On the other hand, the HF of optical fiber side acid infiltration plastics covering corrosion fibre core.Therefore, the core segment nearer apart from covering corroded soon, and the core segment far away apart from covering corroded slowly.There is diametrically gradient in corrosion rate, so corrosion forms taper needle point.
SiO
2generate SiF with HF acid reaction
4can be understood as SiO
2the process of dissolving, SiF
4with H
2o reaction generates SiO
2and H
2siF
6can be understood as SiO
2the process of crystallization.Traditional upright disposed tubes corrosion, the optical fiber with covering immerses HF acid, and end face down, the SiF generating
4under Action of Gravity Field, sedimentation downwards, leaves optical fiber.Otherwise, be inverted optical fiber, allow its end face upward, SiO
2the product SiF dissolving
4under Action of Gravity Field, being deposited on the space between optical fiber and covering, is SiF
4generate SiO with water reactive crystallization
2create condition, simultaneously H
2siF
6also weaken the further corrosion of HF acid to fiber core, under both effects, caused the more traditional upright disposed tubes etch of tapered probe generating to there is larger cone angle.Meanwhile, be inverted pipe corrosion, whole corrosion part is all immersed in HF acid solution body, therefore all irrelevant apart from the distance of liquid layer with kind and the fiber end face of confining bed.The corrosion of fibre core is limited within the scope of plastics covering, this narrow space, and diameter is generally hundreds of microns, and therefore the small vibrations of extraneous corrosive liquid concussion or optical fiber are minimum on its impact, thereby ensured the smooth of detecting probe surface, the advantage that optical transmission loss is little.
The utility model is inverted in the optical fiber with plastics covering in hydrofluorite by plastic sleeve, and the corrosion of optical fiber is confined within the scope of optic fibre plastics covering.There is gradient disparities in fiber optical corrosive speed, thereby corrosion forms taper needle point diametrically.Utilize and be inverted optical fiber particular design, the impact of gravity on corrosion, prepares the optical fiber probe with the larger cone angle of more traditional uprise etch.
Device of the present utility model is simple, easy to operate, kept pipe etch low to the stability requirement of environment, corrosive liquid, and detecting probe surface is smooth, optical transmission loss is little, prepare multiple advantages such as favorable repeatability, and obtained the optical fiber probe of the larger cone angle of more traditional upright disposed tubes etch.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, be a kind ofly inverted the device that pipe etch is prepared large cone angle optical fiber probe, comprise a right angle rack 1, optical fiber 2, plastic sleeve 3 and a plastic beaker 4.
Wherein right angle rack 1 comprises the pole 1-1 of vertical setting and the crossbeam 1-2 vertical with pole; Plastic sleeve 3 comprises parallel long straight-tube portion 3-1 and short straight tube part 3-2, and connects respectively the bent tube section 3-3 of long straight-tube portion 3-1 and short straight tube part 3-2, and plastic sleeve 3 entirety are J type; The long straight-tube portion 3-1 of plastic sleeve is fixed on the crossbeam 1-2 of support, and optical fiber 2 arranges through plastic sleeve 3.
How immersion liquid 5 of bromo, hydrofluorite liquid 6 and confining liquid 7 are housed in plastic beaker 4 from the bottom to top successively, and the short straight tube part 3-2 of plastic sleeve and bent tube section 3-3 are arranged on bromo how in immersion liquid 5, and bromo is the port of immersion liquid 5 submergence short straight tube part 3-2 how; The port of short straight tube part 3-2 is stretched out in one end of optical fiber 2, and is positioned at hydrofluorite liquid 6, and the other end of optical fiber 2 stretches out the port of long straight-tube portion 3-1; Stretch out one section of optical fiber of short straight tube part 3-2 port of plastic sleeve perpendicular to the how interface of immersion liquid 5 and hydrofluorite liquid 6 of bromo, to ensure that the tapered probe generating has good symmetry.
Concrete installation and procedure of processing are as follows:
1, the plastics jacket layer of outside of fiber or overlay are divested with optical fiber wire-stripping pliers, then use cotton ball soaked in alcohol wiped clean;
2, optical fiber inserts from the long straight-tube portion port of rigid plastic sleeve, stretches out from short straight tube part port; Excise short section of optical fiber with optical fiber cutter, ensure that the section flat of output terminal optical fiber is neatly clean; Pull the optical fiber in plastic sleeve, adjusting optical fiber is 5-10mm from the exposed length of short straight tube part port;
3, the plastic sleeve that is inserted with optical fiber is placed in to plastic beaker, the long straight-tube portion of plastic sleeve is fixed on the crossbeam of support, adjusts the direction of sleeve, and the one section of optical fiber that makes it the short straight tube part port that stretches out plastic sleeve is vertically placed;
4,, to injecting how immersion liquid of bromo in plastic beaker, its liquid level is a little more than the port of the short straight tube part of plastic sleeve, and lower than the end face that exposes optical fiber;
5, to slow hydrogen injecting fluoric acid liquid in plastic beaker, make to expose optical fiber and immerse hydrofluorite liquid completely;
6, in plastic beaker, slowly inject confining liquid, the about 0.1-0.5mm of thickness with dropper;
7, wait for fiber optical corrosive quietly approximately 50 minutes (time length is relevant with concentration and the temperature of hydrofluorite liquid), the optical fiber front end being dipped in hydrofluorite liquid has generated taper needle point, takes out plastic sleeve;
8, optical fiber is extracted out from the galianconism end of J jacket cylinder, taper needle tip is placed in to the concentrated sulphuric acid and soaks 20 minutes, after taking-up, by the careful wipe surfaces of cotton ball soaked in alcohol, removes plastics covering;
9, the optical fiber probe of removing covering is placed in to deionized water rinsing, takes out and dry.
Claims (3)
1. be inverted the device that pipe etch is prepared large cone angle optical fiber probe, comprise a right angle rack, optical fiber, plastic sleeve and a plastic beaker, it is characterized in that:
Described right angle rack comprises the pole of vertical setting and the crossbeam vertical with pole; Plastic sleeve comprises parallel long straight-tube portion and short straight tube part, and connects respectively the bent tube section of long straight-tube portion and short straight tube part, and plastic sleeve entirety is J type; The long straight-tube portion of plastic sleeve is fixed on the crossbeam of support, and optical fiber is through plastic sleeve setting;
How immersion liquid of bromo, hydrofluorite liquid and confining liquid are housed in described plastic beaker from the bottom to top successively; The short straight tube part of plastic sleeve and bent tube section are arranged on bromo how in immersion liquid, and bromo is the port of immersion liquid submergence short straight tube part how; The port of short straight tube part is stretched out in one end of optical fiber, and is positioned at hydrofluorite liquid, and the other end of optical fiber stretches out the port of long straight-tube portion; Stretch out one section of optical fiber of short straight tube part port of plastic sleeve perpendicular to the how interface of immersion liquid and hydrofluorite liquid of bromo.
2. a kind of device that pipe etch is prepared large cone angle optical fiber probe of being inverted as claimed in claim 1, is characterized in that: described optical fiber is for removing plastics jacket layer or overlay, and with the optical fiber of plastics covering; Described plastics covering can be by hydrofluorite Liquid Penetrant, and not by hydrofluorite liquid corrosion.
3. a kind of device that pipe etch is prepared large cone angle optical fiber probe of being inverted as claimed in claim 1, is characterized in that: described confining liquid is sunflower oil, isooctane, dimethylbenzene or m-xylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099866.8U CN203732563U (en) | 2014-03-06 | 2014-03-06 | Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099866.8U CN203732563U (en) | 2014-03-06 | 2014-03-06 | Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732563U true CN203732563U (en) | 2014-07-23 |
Family
ID=51202626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420099866.8U Expired - Fee Related CN203732563U (en) | 2014-03-06 | 2014-03-06 | Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033092A (en) * | 2015-03-09 | 2016-10-19 | 中国科学院物理研究所 | Optical fiber probe and preparation method thereof |
| CN107102174A (en) * | 2017-05-16 | 2017-08-29 | 中国计量科学研究院 | A kind of preparation method for the extraordinary probe that micro-measurement apparatus is scanned for needlepoint type |
-
2014
- 2014-03-06 CN CN201420099866.8U patent/CN203732563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033092A (en) * | 2015-03-09 | 2016-10-19 | 中国科学院物理研究所 | Optical fiber probe and preparation method thereof |
| CN106033092B (en) * | 2015-03-09 | 2018-09-07 | 中国科学院物理研究所 | A kind of optical fiber probe and preparation method thereof |
| CN107102174A (en) * | 2017-05-16 | 2017-08-29 | 中国计量科学研究院 | A kind of preparation method for the extraordinary probe that micro-measurement apparatus is scanned for needlepoint type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105203607B (en) | A kind of preparation method of carbon fibre ultramicro-electrode | |
| CN203732563U (en) | Device for preparing large-cone-angle optical fiber probe by inverted tube corrosion method | |
| CN104345178A (en) | Preparation method of metal probe | |
| CN102590560B (en) | Method for manufacturing optical fiber probe by using focused ion beam technology | |
| CN204302310U (en) | A kind of dynamic temperature change etch prepares the device of large cone angle optical fiber probe | |
| CN102901846B (en) | The device and method of preparation metal needle point | |
| CN103011146A (en) | Graphene glue film, preparation method of graphene glue film and transfer method of graphene | |
| CN105445226A (en) | Method and apparatus for observing one-dimensional nano-material | |
| CN104142223A (en) | Small-scale solidified cohesive sediment incipient motion measuring system | |
| WO2016038108A1 (en) | Particle detection apparatus | |
| Tan et al. | Investigation of fog collection on cactus-inspired structures | |
| CN202676697U (en) | Vulcanized rubber fluid-resistance testing device special for immersion of test specimens | |
| CN104677293A (en) | Method for manufacturing three-core fiber grating micro-scale measurement probe based on self-assembly principle | |
| CN203079843U (en) | Etching auxiliary device | |
| CN108896633B (en) | High-precision pH microelectrode and manufacturing method thereof | |
| CN103884550A (en) | Method for extracting and analyzing oxides in steel by electrolysis | |
| CN113406162B (en) | Preparation method for forming nano-gap electrode pair | |
| CN107290252B (en) | A method of test fiber wetness can | |
| CN109455955A (en) | A kind of U-shaped fibre-optical probe preparation method | |
| CN106770028B (en) | For detecting the fibre optical sensor and preparation method thereof of embryo metabolism product | |
| CN102840843B (en) | Method for obtaining effective capillary radius of unidirectional fiber bundle | |
| CN104193182A (en) | Accurate control method of etching technology in optical fiber preform production | |
| CN103645276B (en) | Simple core oil-displacement test system prepared from injector tube barrel and simulation method using the same | |
| CN103817861A (en) | Mold for preparing solid-phase extraction stirring bar and preparation method thereof | |
| CN104280434B (en) | A kind of coaxial positioning capillary electrophoresis electrochemical integrated detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20170306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |