CN204989519U - Beam direction follows two free adjustable fluid lenticules of dimension - Google Patents
Beam direction follows two free adjustable fluid lenticules of dimension Download PDFInfo
- Publication number
- CN204989519U CN204989519U CN201520390780.5U CN201520390780U CN204989519U CN 204989519 U CN204989519 U CN 204989519U CN 201520390780 U CN201520390780 U CN 201520390780U CN 204989519 U CN204989519 U CN 204989519U
- Authority
- CN
- China
- Prior art keywords
- fluid
- covering
- sandwich layer
- microcavity
- refractive index
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a beam direction follows two free adjustable fluid lenticules of dimension, including the fluid fiber waveguide, the face is received to incident laser ware and light beam, it has the runner that is used for bearing the weight of the microfluid to open in the fluid fiber waveguide, the runner includes a sandwich layer fluid entry, four covering fluid entrys from top to bottom, fluid microcavity and two upper and lower fluid issuings, sandwich layer fluid entry, four covering fluids entry all communicates with the entrance side of fluid microcavity, outlet side and two fluid issuings of fluid microcavity are connected, fluid issuing and outflow fluid container intercommunication, coaxial the arranging of face is received to incident laser ware and light beam, the the central axis direction of microcavity is unanimously followed with the parallel just direction of fluid flow direction to axis between them, the installation is used for adjusting the stream speed adjusting festival equipment of fluid speed in sandwich layer fluid entry and the covering fluid entry. The utility model discloses can be dynamic harmonious, the integrated level is high, simple structure, convenient, the low cost of preparation.
Description
Technical field
The utility model relates to integrated-type optical device, especially a kind of tunable lenticule in focused ray direction of integrated-type.
Background technology
The shaping technique of light beam includes the regulation and control such as focusing, collimation, deflection, beam splitting, coupling to light beam, and the index distribution of regulation and control optical medium just can realize the control such as focusing, collimation, deflection, beam splitting to incident beam easily usually.Micro-fluidic optical technology fast-developing is in recent years the new method we providing beam shaping, its principle to flow the control (MaoX realized light micro-scale by controlling fluid, LinSS, LapsleyMI, ShiJ, JuluriBK, Tunableliquidgradientrefractiveindex (L-GRIN) lenswithtwodegreesoffreedom, Lab.Chip., 9 (2009): 2050-2058, there is the tunable liquid gradual index lens of 2 degree of freedom regulating powers, laboratory on sheet, 9 (2009): 2050-2058; YangY, LiuAQ, ChinLK, ZhangXM, TsaiDP, LinCL, LuC, WangGP, ZheludevNI, Optofluidicwaveguideasatransformationopticsdeviceforligh twavebendingandmanipulation, Nat.Commun., 3 (2012): 651-657, the transfer optics based on optofluidic waveguide bending for light wave and control, nature-communication, 3 (2012): 651-657).Given this, microflow control technique and system can be introduced into beam direction along in the free adjustable lenticular designing and making of fluid of one or more dimension.First the diffusion in the fluid that refractive index is lower of fluid that a kind of refractive index is higher and convection current is utilized, form a kind of optical waveguide of controllable index distribution, then carry out tuning light wave in the deflection of exit end and focusing by the index distribution of dynamic regulation optical waveguide, obtain the effect of one or more dimension beam deflection and focusing.
There is no beam direction at present along the free adjustable lens arrangement of one or more dimension, the adjustment of beam direction needs to be realized by external accurate machine construction, therefore structure is very complicated, size large, and cannot realize the dynamically adjustable continuously of beam direction.Be difficult to the active demand meeting field of photodetection and light sensory field.For meeting the active demand of application, the utility model proposes the lenticule that a kind of novel beam direction combining integrated-type and tunable function is adjustable, namely based on the beam direction of optical waveguide along the freely adjustable fluid lenticule of two dimensions.
Summary of the invention
In order to overcome the external accurate machine construction of existing lenticular needs to realize that lens beam direction is tuning, complex structure, bulky dimensions, making difficulty, regulation and control very flexible, deficiency that integrated level is low, the utility model provides a kind of dynamic is tuning, integrated level is high, structure is simple, easy to make, with low cost beam direction along the freely adjustable fluid lenticule of two dimensions.
The utility model solves the technical scheme that its technical matters adopts:
A kind of beam direction is along the free adjustable fluid lenticule of two dimensions, comprise optical waveguide, incident laser device, beam reception face, described optical waveguide has the runner for carrying microfluid, described runner comprises a sandwich layer fluid intake, four covering fluid intakes up and down, fluid microcavity and upper and lower two fluid egress points, two the covering fluid intakes in left and right are symmetrical arranged with the central axis of microcavity, upper and lower two covering fluid intakes and upper and lower two fluid egress points are all symmetrical arranged with the central axis of microcavity, described sandwich layer fluid intake, four covering fluid intakes all with the inlet side communication of described fluid microcavity, the outlet side of described fluid microcavity is connected with two fluid egress points, described incident laser device and beam reception face coaxially arranged, described incident laser device and direction consistent central axial direction along microcavity parallel with fluid flow direction with the axis in beam reception face, described sandwich layer fluid intake and the interior flow rate regulating device installed in order to regulate fluid velocity of covering fluid intake, described flow rate regulating device control sandwich layer fluid and covering rate of flow of fluid are to realize beam direction along the free adjustable effect of two dimensions,
Only there is diffusion and convective motion each other in described sandwich layer fluid and covering fluid, covering fluid ring is around sandwich layer fluid, described sandwich layer fluid and covering fluid are two kinds of fluids with different refractivity, and described sandwich layer fluid and covering fluid flow and jointly form optical waveguide in fluid microcavity.
Further, described flow rate regulating device is the peristaltic pump injecting fluid.
Further again, described covering fluid refractive index is higher than described sandwich layer fluid refractive index.
Technical conceive of the present utility model is: utilize and form the sandwich layer of optical waveguide and the diffusion of covering two kinds of fluids and convection process dynamic regulation waveguide index, affect two kinds of fluid diffusion and convection processes also so that the principal element affecting optical waveguide index distribution comprise the flow velocity of sandwich layer and covering fluid and the selection of different refractivity microfluid.If rate of flow of fluid is lower in time-limited micro-raceway groove, then diffusional effect is obvious, be now the cross-sectional direction of microcavity or all will consider the impact of diffusional effect on concentration gradient along fluid flow direction, and the diffusion of sandwich layer fluid in the covering fluid graded index optical waveguide theoretical foundation that can realize just.Further, different from the gradual index lens in the past based on micro-fluidic optical technology, allow the flow velocity of side covering be greater than opposite side, form the distribution of offsets of the higher core region of refractive index, and carry out deflection and the focusing of light beam with this.Therefore, not only effectively can be controlled the space distribution of fluid diffusion concentration and refractive index by the flow velocity and type of fluid controlling sandwich layer fluid and covering fluid, deflection and the focusing effect of light wave can also be controlled.
The beneficial effects of the utility model are mainly manifested in: 1, based on the beam shaping method of micro-fluidic optical technology, fluid optical waveguide structure is formed with the convection current between two kinds of fluids and diffusion process, by controlling flow velocity and the type of fluid of sandwich layer and covering fluid, flexible and changeable index distribution can be obtained, realize the tunable lenticule of focus direction, and the angle of deflection and focal length can regulate in real time; 2, by the beam direction tunable lenticule of utility model based on optical waveguide, a kind of novel beam direction having integration and tunable function concurrently can be built along the freely adjustable fluid lenticule of two dimensions; 3, direction of beam propagation is along lenticular central shaft liquid flow direction, effectively ensure that the adjustability of graded--index planar waveguides to lenticule beam direction; 4, compared with traditional beam direction regulate and control method, have and do not need external mechanical mechanism, single lenticule can realize the advantage of beam direction dynamic adjustments, and has the advantages such as integrated level is high, structure is simple, easy to make, with low cost.
Accompanying drawing explanation
Fig. 1 is that the beam direction of the utility model based on optical waveguide is along the free adjustable lenticular schematic diagram of fluid of two dimensions.
Fig. 2 is the utility model based on the beam direction of optical waveguide along the cavity schematic diagram of optical waveguide carrying microfluid in the freely adjustable fluid lenticule of two dimensions.
Fig. 3 increases left side covering flow rate of liquid to realize refractive index of the centre and to turn right the refractive index profile of skew.
Fig. 4 is that on the downside of increasing, covering flow rate of liquid realizes the refractive index profile offset above refractive index of the centre.
Fig. 5 increases left side and downside covering flow rate of liquid realizes the refractive index profile that refractive index of the centre offsets toward upper right side simultaneously.
Fig. 6 is increased to 9fr process when side covering flow velocity from 1fr, the change of the side-play amount at index distribution center.
Fig. 7 is side covering flow velocity is 3fr (i.e. Q
left=1.5 × 10
4pL/s) time, the distribution of offsets figure at refractive index center.
Fig. 8 is side covering flow velocity is 2fr (i.e. Q
left=1 × 10
4pL/s) time, the distribution of offsets figure at refractive index center.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1 ~ Fig. 5, a kind of beam direction is along the free adjustable fluid lenticule of two dimensions, comprise optical waveguide 1, incident laser device 2 and beam reception face 3, described optical waveguide 1 has the runner for carrying microfluid, described runner comprises a sandwich layer fluid intake 4, four covering fluid intakes 5 up and down, fluid microcavity 6 and upper and lower two fluid egress points 7, two the covering fluid intakes in left and right are symmetrical arranged with the central axis of microcavity, upper and lower two covering fluid intakes and upper and lower two fluid egress points are all symmetrical arranged with the central axis of microcavity, described sandwich layer fluid intake 4, four covering fluid intakes 5 all with the inlet side communication of described fluid microcavity 6, the outlet side of described fluid microcavity 6 is connected with two fluid egress points 7, described incident laser device 2 and described beam reception face 3 coaxially arranged, described incident laser device is consistent with fluid flow direction with the axis in described beam reception face, described sandwich layer fluid intake 4 and the interior flow rate regulating device installed in order to regulate fluid velocity of covering fluid intake 5, described flow rate regulating device control sandwich layer fluid and covering rate of flow of fluid are to realize beam direction along the free adjustable effect of two dimensions,
Only there is diffusion and convective motion each other in described sandwich layer fluid and covering fluid, covering fluid ring is around sandwich layer fluid, described sandwich layer fluid and covering fluid are two kinds of fluids with different refractivity, described sandwich layer fluid and covering fluid flow in fluid microcavity, jointly form optical waveguide.
Further, described flow rate regulating device is the peristaltic pump injecting fluid, certainly, also can adopt other flow rate regulating device.
Further again, described covering fluid refractive index is higher than described sandwich layer fluid refractive index.
The beam direction of the present embodiment is along the free adjustable fluid lenticule of two dimensions, and the method realizing light wave beam splitting comprises the following steps:
(1) only there is diffusion and convective motion (sandwich layer fluid and covering fluid chemical reaction do not occur each other) each other in described sandwich layer fluid and covering fluid, covering equal flows ground is around sandwich layer fluid, described sandwich layer fluid and covering fluid are two kinds of fluids with different refractivity, described sandwich layer fluid and covering fluid flow in fluid microcavity, jointly form optical waveguide;
(2) laser beam of setting wavelength is incided described optical waveguide by described incident laser device, and direction of beam propagation is consistent with fluid flow direction, and described beam reception face receives the light beam exported after optical waveguide;
(3) by selecting microfluid kind, the refractive index of refractive index higher than described covering fluid of described sandwich layer fluid is controlled;
(4) by regulating rate of flow of fluid, controlling the space distribution of fluid diffusion process and refractive index, realizing the focusing of light beam and the beam direction free deflection along two dimensions.
In the present embodiment, in described step (3), by selecting the kind of sandwich layer fluid and covering fluid, and in described step (4), effectively can be controlled the process of diffusion and convection current by the flow velocity controlling sandwich layer fluid and covering fluid, thus control the space distribution of fluid diffusion and refractive index; Specific as follows:
1) impact of flow velocity refractive index distribution, keep other parameter constants, select the index distribution along fluid flow direction diverse location cross-section, its flow velocity is
qs
core=1.5 × 10
4pL/s, Q
up=Q
down=1.5 × 10
4pL/s.
2) index distribution in convection current microcavity is spread, along with the various index distribution situations of the change of covering flow velocity.The flow velocity that Fig. 3 and Fig. 4 sets forth increases separately left side covering liquid and downside covering liquid realizes the refractive index profile that refractive index of the centre is turned right and top offsets.Fig. 5 display increases the flow velocity of left side and downside covering liquid simultaneously, the situation that refractive index center offsets toward upper right side.The relation of refractive index and focused ray, namely the direction of propagation of light offsets towards the direction that refractive index is higher.Fig. 6 gives Q
leftbe increased to 9fr process from 1fr, the side-play amount of refractive index of the centre is increased to 35.2 μm from 0 μm.
Carry out the impact of research centre refractive index in microcavity by adjustment kit laminar flow speed, obtained the laser propagation effect of light by Ray-tracing Method, covering flow velocity is respectively Q as shown in Figure 7, Figure 8
left=1.5 × 10
4pL/s and Q
left=1 × 10
4its index distribution point of pL/s and matched curve thereof are respectively
with
in figures 7 and 8, give the light beam focusing results of incident ray after lenticule utilizing Ray-tracing Method to obtain, as can be seen from the figure, good light deflection effect can be obtained by the flow velocity controlling side.This light beam regulating effect adjustable flexibly can detect in biomedicine, and Wave Guiding Optics coupling has important application.
Claims (3)
1. a beam direction is along the free adjustable fluid lenticule of two dimensions, it is characterized in that: comprise optical waveguide, incident laser device and beam reception face, described optical waveguide has the runner for carrying microfluid, described runner comprises a sandwich layer fluid intake, four covering fluid intakes up and down, fluid microcavity and upper and lower two fluid egress points, two the covering fluid intakes in left and right are symmetrical arranged with the central axis of microcavity, upper and lower two covering fluid intakes and upper and lower two fluid egress points are all symmetrical arranged with the central axis of microcavity, described sandwich layer fluid intake, four covering fluid intakes all with the inlet side communication of described fluid microcavity, the outlet side of described fluid microcavity is connected with two fluid egress points, described incident laser device and beam reception face coaxially arranged, described incident laser device and direction consistent central axial direction along microcavity parallel with fluid flow direction with the axis in beam reception face, described sandwich layer fluid intake and the interior flow rate regulating device installed in order to regulate fluid velocity of covering fluid intake,
Only there is diffusion and convective motion each other in described sandwich layer fluid and covering fluid, covering fluid ring is around sandwich layer fluid, described sandwich layer fluid and covering fluid are two kinds of fluids with different refractivity, and described sandwich layer fluid and covering fluid flow and jointly form optical waveguide in fluid microcavity.
2. beam direction as claimed in claim 1 is along the free adjustable fluid lenticule of two dimensions, it is characterized in that: described flow rate regulating device is the peristaltic pump injecting fluid.
3. beam direction as claimed in claim 1 is along the free adjustable fluid lenticule of two dimensions, it is characterized in that: described covering fluid refractive index is higher than described sandwich layer fluid refractive index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390780.5U CN204989519U (en) | 2015-06-08 | 2015-06-08 | Beam direction follows two free adjustable fluid lenticules of dimension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520390780.5U CN204989519U (en) | 2015-06-08 | 2015-06-08 | Beam direction follows two free adjustable fluid lenticules of dimension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989519U true CN204989519U (en) | 2016-01-20 |
Family
ID=55123874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520390780.5U Withdrawn - After Issue CN204989519U (en) | 2015-06-08 | 2015-06-08 | Beam direction follows two free adjustable fluid lenticules of dimension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044804A (en) * | 2015-06-08 | 2015-11-11 | 浙江工业大学 | Fluid microlens with free adjustable light beam direction along two dimensions |
-
2015
- 2015-06-08 CN CN201520390780.5U patent/CN204989519U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044804A (en) * | 2015-06-08 | 2015-11-11 | 浙江工业大学 | Fluid microlens with free adjustable light beam direction along two dimensions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8564885B2 (en) | Tunable liquid gradient refractive index lens device | |
| CN103869477B (en) | Tunable optical ripple beam splitter based on optical waveguide | |
| US20120056081A1 (en) | Light-Tracking Optical Device and Application to Light Concentration | |
| CN103792664B (en) | A kind of beam shaping method based on micro-fluidic optical technology | |
| CN102183822A (en) | Elliptical light spot optical fiber collimator | |
| CN204989519U (en) | Beam direction follows two free adjustable fluid lenticules of dimension | |
| EP3671862A1 (en) | Pattern-glass and solar light power generating module comprising same | |
| CN204740362U (en) | Beam direction follows free adjustable fluid lenticule of dimension | |
| CN105044804B (en) | Fluid microlens with free adjustable light beam direction along two dimensions | |
| KR102030662B1 (en) | Pattern glass and solar cell module having thereof | |
| CN104932044A (en) | Fluid microlens with one-dimensional freely adjustable light-beam direction | |
| CN104932109B (en) | A kind of one-dimensional tunable light beam direction regulation and control method based on optical waveguide | |
| CN103792665A (en) | Beam shaping device based on microfluidic optical technology | |
| CN105404068B (en) | A kind of two dimensional tunable beam direction regulation and control method based on optical waveguide | |
| CN104777531A (en) | Dynamic adjusting method for focal length based on graded-refractive-index fluid micro lens | |
| CN204575878U (en) | The fluid lenticule that in sheet, focal length and focal spot are dynamically adjustable | |
| CN103472528B (en) | The accurate brilliant optical fiber of a kind of high birefringence photon with grape fruit airport | |
| CN102135642A (en) | Variable optical attenuator | |
| CN103018820A (en) | Flat-top optical fiber | |
| CN106019473A (en) | Micro-nano-structured wave division multiplexer based on Ag/air medium | |
| CN105911643A (en) | Adjustable multi-channel TeraHertz wave power divider based on hollow flat plate structure | |
| CN106908910A (en) | A kind of coupled structure of multimode fibre and photodetector | |
| CN104765081A (en) | Fluid micro lens with dynamically adjustable on-chip focal distance and focal spot | |
| CN104865622A (en) | Dynamic adjustment method for focal spots based on fluid micro lens with gradually changing refraction index | |
| CN206818917U (en) | A kind of automatically controlled discrete droplets formula photoswitch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20170524 |