CN217386686U - Vacuum environment light driving device based on micro-nano optical fiber - Google Patents
Vacuum environment light driving device based on micro-nano optical fiber Download PDFInfo
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- CN217386686U CN217386686U CN202220243553.XU CN202220243553U CN217386686U CN 217386686 U CN217386686 U CN 217386686U CN 202220243553 U CN202220243553 U CN 202220243553U CN 217386686 U CN217386686 U CN 217386686U
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Abstract
The utility model discloses a vacuum environment light drive arrangement based on receive optic fibre a little relates to receive optic fibre technical field a little. The utility model comprises a micro-nano optical fiber, a micro-nano object matched with the micro-nano optical fiber and a fiber laser connected with the micro-nano optical fiber; the micro-nano object is arranged on the micro-nano optical fiber, and the contact between the micro-nano object and the micro-nano optical fiber is uneven; the micro-nano optical fiber forms an evanescent field at the boundary after the optical fiber laser is introduced with laser, and the effect of driving a micro-nano object in a vacuum environment is realized.
Description
Technical Field
The utility model belongs to the technical field of receive optic fibre a little, especially relate to a vacuum environment light drive arrangement based on receive optic fibre a little.
Background
In recent years, micro-nano optical fibers have been widely used in various fields such as detection, medical treatment, and communication, and have an indispensable role, because of their advantages such as low loss, low cost, and easy mass production. The manufacturing process and the structural characteristics of the micro-nano optical fiber, the modulation of the micro-nano optical fiber on a light field, the influence of the micro-nano optical fiber on the light beam quality of an output light beam and the like are receiving more and more attention
The patent application with the publication number of CN207817253U discloses an optical fiber flange, including the flange base, the both ends face of flange base sets up first connecting pipe and second connecting pipe respectively, connection structure has on first connecting pipe and the second connecting pipe, and the connection structure of first connecting pipe is used for cooperating with the joint of A end optic fibre, and the connection structure of second connecting pipe is used for cooperating with the joint of B end optic fibre, the inside optic fibre collimation hole that is equipped with of ring flange, A end optic fibre and B end optic fibre pass through the optic fibre collimation hole is aimed at, the inside in optic fibre collimation hole is equipped with fresnel lens, fresnel lens is used for assembling the optic fibre that the A end optic fibre terminal surface jetted out and conducts to B end optic fibre terminal surface or assembles the optic fibre that the B end optic fibre terminal surface jetted out and conducts to A end optic fibre terminal surface. When the existing optical fiber flange plate is installed, the optical fiber flange plate still needs to be fixed through screws, and when the optical fiber flange plate is damaged, the optical fiber flange plate is not easy to replace.
In addition, the adhesion force between two micro-nano objects is larger in a vacuum environment, and the movement of the micro-nano objects cannot be controlled by utilizing the optical force. The object can be controlled by utilizing the optical force, various optical elements are lumped, the micro-nano object can be controlled by realizing the super-strong electric field local area, the method is difficult to realize in a vacuum environment, the adhesion force between two micro-nano objects is increased in the vacuum environment, the driving is more difficult compared with the air environment, and further the optical driving in the vacuum environment has important application value for future extreme experimental conditions (such as space environment), such as object transportation in the space environment and the like.
The existing method for controlling objects by utilizing optical force is carried out in a liquid environment, in a vacuum system, the optical force system is complex and is difficult to integrate with the vacuum environment, the adhesion force between two micro-nano objects in the vacuum environment is about three orders of magnitude larger than the optical force, and the traditional optical force is not enough to drive the motion of the micro-nano objects in the vacuum environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum environment light drive arrangement based on receive optic fibre a little, it all goes on under the liquid environment to have solved current utilization light power and control the object, in vacuum system, because light power system is complicated, hardly with vacuum environment integration, and vacuum environment two receive the adhesion force between the object a little about than the big three order of magnitude of light power, traditional light power is not enough to drive the technical problem of motion and the optical fiber flange dish among the prior art of receiving the object a little in the vacuum environment when damaging, be difficult for carrying out the technical problem who changes.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the method comprises the following steps: the system comprises a micro-nano optical fiber, a micro-nano object matched with the micro-nano optical fiber and an optical fiber laser connected with the micro-nano optical fiber; the micro-nano object is arranged on the micro-nano optical fiber, and the contact between the micro-nano object and the micro-nano optical fiber is uneven; the micro-nano fiber forms an evanescent field at the boundary after the fiber laser is introduced with laser.
Optionally, the size of the micro-nano object is several micrometers to several hundred micrometers, and the thickness is several tens of nanometers to several tens of micrometers. And (5) deforming the bottom of the micro-nano object.
Optionally, the optical fiber laser includes optical fiber flanges disposed on two sides of the micro-nano optical fiber, one of the optical fiber flanges is connected with a power meter and an optical fiber coupler, an attenuator is disposed on one side of the optical fiber coupler, and a driving light source is disposed on one side of the attenuator.
Optionally, the micro-nano object and the micro-nano optical fiber are placed in a vacuum environment.
Optionally, the method comprises an electron microscope, wherein the micro-nano object and the micro-nano optical fiber are arranged in the electron microscope. The opening with fiber flange matched with is all seted up to electron microscope's both sides, and fiber flange includes with opening matched with barrel, sliding fit at the internal driving barrel of barrel, normal running fit at barrel week side and with driving barrel matched with change, elastic fit at barrel week side and with a plurality of joint pieces of driving barrel matched with.
Optionally, an annular groove is formed in the periphery of the cylinder body, the rotating ring is rotationally matched in the annular groove, and a thread protrusion in threaded fit with the transmission cylinder is arranged on the periphery of the inner wall of the rotating ring.
Optionally, the circumferential side of the transmission cylinder is provided with a thread groove matched with the thread protrusion, and the circumferential side of the transmission cylinder is provided with teeth meshed with the plurality of clamping blocks.
Optionally, notches corresponding to the plurality of clamping blocks one to one are formed in the periphery of the cylinder body, each clamping block comprises a gear which is in running fit with the notches and is meshed with the teeth, a protruding block is arranged on one side of the gear and matched with the notches, and the protruding block is matched with the opening.
Optionally, an electron gun is installed in the electron microscope, and the electron gun is located between the two optical fiber flanges.
Optionally, the driving light source is a broad spectrum light source or a single wavelength light source.
Optionally, the driving light source is any one of nanosecond pulse laser, picosecond pulse laser and femtosecond pulse laser.
Optionally, a micro-nano optical fiber is arranged in the optical fiber flange, and the diameter of the micro-nano optical fiber is between 0.5 micrometers and 5 micrometers.
Optionally, the micro-nano fiber is a single mode fiber or a multimode fiber.
The embodiment of the utility model has the following beneficial effect:
the utility model discloses an embodiment can cooperate with the change through the joint piece that sets up, carries out the centre gripping to the electron microscope of opening both sides to make the optic fibre flange fix, through the change that sets up, can drive the driving drum and remove, and drive a plurality of joint pieces through the driving drum and remove, remove the centre gripping to electron microscope, thereby can change the optic fibre flange under the condition that the user lacks the instrument, improved the efficiency that the flange was changed.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages simultaneously.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of an electron microscope according to an embodiment of the present invention;
fig. 2 is a schematic side sectional view of an electron microscope according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an optical fiber flange according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
the device comprises an electron microscope 1, an optical fiber flange 2, a power meter 3, an optical fiber coupler 4, an attenuator 5, a driving light source 6, a barrel 8, a transmission barrel 9, a rotary ring 10, a clamping block 11, an annular groove 12, a gear 13, a convex block 14, an electron gun 15 and a notch 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To keep the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known parts of the invention has been omitted.
Referring to fig. 1 to 3, in the present embodiment, a vacuum environment light driving apparatus based on micro-nano optical fiber is provided, including: the system comprises a micro-nano optical fiber, a micro-nano object matched with the micro-nano optical fiber and a fiber laser connected with the micro-nano optical fiber; the micro-nano object is arranged on the micro-nano optical fiber, and the contact between the micro-nano object and the micro-nano optical fiber is uneven; the micro-nano fiber forms an evanescent field at the boundary after the fiber laser is introduced with laser.
The size of the micro-nano object is between several micrometers and several hundred micrometers, and the thickness of the micro-nano object is between tens of nanometers and tens of micrometers. And (5) deforming the bottom of the micro-nano object.
According to the scheme, the micro-nano object and the micro-nano optical fiber are not in uniform contact, when the optical fiber is led into the micro-nano optical fiber by the optical fiber laser, the micro-nano optical fiber supports stable optical field transmission, evanescent fields exist at the boundary of the micro-nano optical fiber triggered by laser, the micro-nano optical fiber converts light into heat of the micro-nano object, the micro-nano object and the micro-nano optical fiber are partially melted, and the melted liquid is asymmetrically deformed to drive the micro-nano object to form Laplace force along the axial direction of the optical fiber. The scheme is different from other optical driving schemes, because the scheme is arranged under a vacuum condition for optical driving, the scattering ratio under the vacuum environment is poor, so that when the micro-nano optical fiber is heated by laser, the contact surface of the micro-nano optical fiber and the micro-nano object is more easily melted into molten liquid drops, the force generated by the asymmetric deformation of the liquid drops is greater than the optical force, and the micro-nano object is driven to move.
The diameter of the micro-nano optical fiber is 0.5-5 microns, the initial optical fiber can be any one of a single mode optical fiber and a multimode optical fiber, and the micro-nano optical fiber can be heated by any one of flame heating, electric heating and laser heating.
According to the scheme, the micro-nano object can be transferred to the micro-nano optical fiber by using the conical optical fiber, the conical optical fiber touches the bottom of the micro-nano object, and the bottom of the micro-nano object deforms. In some embodiments, the micro-nano object moves towards one end contacted with the micro-nano optical fiber, and the movement direction of the micro-nano object is controlled by controlling the shape of the micro-nano object. According to the scheme, the bottom form of the micro-nano object is changed through the tapered optical fiber, so that the bottom of the micro-nano object is partially contacted with the micro-nano optical fiber and partially not contacted with the micro-nano optical fiber; however, the micro-nano object at the contact part is melted to generate laplace force.
The micro-nano object can be manufactured by a micro-nano processing method, and also can be manufactured by mechanically stripping a block object. The size of the micro-nano object is between several micrometers and several hundred micrometers, and the thickness of the micro-nano object is between tens of nanometers and tens of micrometers.
The fiber laser comprises fiber flanges arranged on two sides of the micro-nano fiber, one of the fiber flanges is connected with a power meter and a fiber coupler, an attenuator is arranged on one side of the fiber coupler, and a driving light source is arranged on one side of the attenuator.
In order to conveniently observe the movement of the micro-nano object under the vacuum environment, the scheme further comprises an electron microscope 1, the micro-nano object and the micro-nano optical fiber are arranged in the electron microscope 1, the electron microscope 1 forms the vacuum environment, openings matched with the optical fiber flanges 2 are formed in the two sides of the electron microscope 1, the optical fiber flanges 2 comprise barrel bodies 8 matched with each other, transmission barrels 9 in the barrel bodies 8 in a sliding fit mode, the rotation fit is formed in the peripheral sides of the barrel bodies 8 and is provided with rotating rings 10 matched with the transmission barrels 9, and the elastic fit is formed in the peripheral sides of the barrel bodies 8 and is provided with a plurality of clamping blocks 11 matched with the transmission barrels 9.
The application of one aspect of the embodiment is as follows: when needing to be changed optical fiber flange 2, rotate change 10, change 10 rotations, drive transmission cylinder 9 and remove, and transmission cylinder 9 removes, drives a plurality of joint pieces 11 and removes to relieve the extrusion of joint piece 11 to the inner wall of electron microscope 1, can change optical fiber flange 2. It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.
Through the joint piece 11 that sets up, can cooperate with change 10, carry out the centre gripping to the electron microscope 1 of both sides to make the optic fibre flange fix, through the change 10 that sets up, can drive transmission cylinder 9 and remove, and drive a plurality of joint pieces 11 through transmission cylinder 9 and remove, remove the centre gripping to electron microscope 1, thereby can change the optic fibre flange under the condition that the user lacks the instrument, improved the efficiency that the flange was changed.
In the embodiment, the circumferential side of the cylinder body 8 is provided with an annular groove 12, the rotating ring 10 is rotationally matched in the annular groove 12, and the circumferential side of the inner wall of the rotating ring 10 is provided with a thread bulge in threaded fit with the transmission cylinder 9; the periphery of the transmission cylinder 9 is provided with a thread groove matched with the thread protrusion, and the periphery of the transmission cylinder 9 is provided with teeth meshed with the plurality of clamping blocks 11.
Through the screw thread arch that sets up, can rotate when driving cylinder 9 at the user, through the screw thread arch with the screw thread groove cooperation on the driving cylinder 9 to drive driving cylinder 9 and remove in barrel 8.
The notch 16 with a plurality of joint piece 11 one-to-one is seted up to 8 week sides of barrel of this embodiment, joint piece 11 includes that normal running fit just meshes with the tooth gear 13 in notch 16, lug 14 has been installed to one side of gear 13, lug 14 cooperatees with notch 16, lug 14 cooperatees, wherein transmission barrel 9 week side is equipped with the stopper, 8 inner wall week sides of barrel have been seted up with stopper matched with spacing groove, the rubber block has been installed to one side of lug 14, the torsional spring has been installed to the rotation department of gear 13, the limiting plate with notch 16 matched with has been installed to one side of lug 14. The gear 13 is arranged, so that when the transmission cylinder 9 moves, teeth are meshed with the gear 13, the gear 13 drives the lug 14 to retract into the notch 16, and the extrusion on the inner wall of the electron microscope 1 is relieved.
The electron microscope 1 of the present embodiment houses an electron gun 15, and the electron gun 15 is located between the two fiber flanges 2.
Example 1: the driving light source 6 of the present embodiment is a broad spectrum light source or a single wavelength light source.
Example 2: the driving light source 6 of the present embodiment is any one of a nanosecond pulse laser, a picosecond pulse laser, and a femtosecond pulse laser.
The fiber flange 2 of the embodiment is internally provided with a micro-nano fiber, and the diameter of the micro-nano fiber is between 0.5 micron and 5 microns.
The micro-nano optical fiber of the embodiment is a single mode optical fiber or a multimode optical fiber.
Specifically, the method comprises the following steps:
the system is mainly based on the principle of photo-thermal conversion, evanescent field energy in the micro-nano optical fiber is absorbed by a micro-nano object and converted into heat, when the temperature is high enough, an interface in contact with the micro-nano optical fiber is partially melted, liquid drops on the interface can be asymmetrically deformed under the action of pulse laser due to uneven contact between the micro-nano optical fiber and the micro-nano object in the transfer process, the micro-nano object has a net Laplace force along the axial direction of the optical fiber due to asymmetric deformation, and when the net Laplace force can overcome the adhesion force between the micro-nano object and the micro-nano optical fiber, the micro-nano object can be driven to move.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (10)
1. A vacuum environment light driving device based on micro-nano optical fibers is characterized by comprising: the system comprises a micro-nano optical fiber, a micro-nano object matched with the micro-nano optical fiber and an optical fiber laser connected with the micro-nano optical fiber; the micro-nano object is arranged on the micro-nano optical fiber, and the contact between the micro-nano object and the micro-nano optical fiber is uneven; the micro-nano fiber forms an evanescent field at the boundary after the fiber laser is introduced with laser.
2. A vacuum environment light driving device based on micro-nano optical fiber according to claim 1, characterized in that the size of the micro-nano object is between several micrometers and several hundred micrometers, and the thickness is between several tens of nanometers and several tens of micrometers.
3. The vacuum environment light driving device based on the micro-nano optical fiber is characterized in that the bottom of the micro-nano object is deformed.
4. The vacuum environment light driving device based on the micro-nano optical fiber according to claim 1, comprising: the fiber laser comprises fiber flange fiber flanges (2) arranged on two sides of a micro-nano fiber, wherein one fiber flange (2) is connected with a power meter (3) and a fiber coupler (4), an attenuator (5) is arranged on one side of the fiber coupler (4), and a driving light source (6) is arranged on one side of the attenuator (5).
5. The vacuum environment light driving device based on the micro-nano optical fiber according to claim 1, wherein the micro-nano object and the micro-nano optical fiber are placed in a vacuum environment.
6. The vacuum environment light driving device based on the micro-nano optical fiber is characterized by comprising an electron microscope (1), wherein the micro-nano object and the micro-nano optical fiber are arranged in the electron microscope (1).
7. The vacuum environment light driving device based on the micro-nano optical fiber is characterized in that openings matched with the optical fiber flange (2) are formed in two sides of the electron microscope (1), the optical fiber flange (2) comprises a cylinder body (8) matched with the openings, a transmission cylinder (9) in sliding fit in the cylinder body (8), a rotating ring (10) in rotating fit on the periphery of the cylinder body (8) and matched with the transmission cylinder (9), and a plurality of clamping blocks (11) which are in elastic fit on the periphery of the cylinder body (8) and matched with the transmission cylinder (9).
8. The vacuum environment light driving device based on micro-nano optical fibers according to claim 6, wherein an electron gun (15) is arranged in the electron microscope (1), and the electron gun (15) is positioned between the two optical fiber flanges (2).
9. The vacuum environment light driving device based on micro-nano optical fibers according to claim 4, wherein the driving light source (6) is a broad spectrum light source or a single wavelength light source.
10. The vacuum environment light driving device based on the micro-nano optical fiber according to claim 4, wherein the driving light source (6) is any one of nanosecond pulse laser, picosecond pulse laser and femtosecond pulse laser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220243553.XU CN217386686U (en) | 2022-01-28 | 2022-01-28 | Vacuum environment light driving device based on micro-nano optical fiber |
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| CN202220243553.XU CN217386686U (en) | 2022-01-28 | 2022-01-28 | Vacuum environment light driving device based on micro-nano optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442227A (en) * | 2022-01-28 | 2022-05-06 | 西湖大学 | Vacuum environment light driving system and method based on micro-nano optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442227A (en) * | 2022-01-28 | 2022-05-06 | 西湖大学 | Vacuum environment light driving system and method based on micro-nano optical fiber |
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