CN205539858U - Compatible scattering device of preceding back scattering - Google Patents
Compatible scattering device of preceding back scattering Download PDFInfo
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- CN205539858U CN205539858U CN201521075061.0U CN201521075061U CN205539858U CN 205539858 U CN205539858 U CN 205539858U CN 201521075061 U CN201521075061 U CN 201521075061U CN 205539858 U CN205539858 U CN 205539858U
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- scattering
- oval
- upright guide
- medium container
- pump light
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Abstract
The utility model provides a compatible scattering device of preceding back scattering which characterized in that: include along signal light source (1) that the light path set gradually, a dichroic mirror (2), semitransparent mirror (5) of first preceding backscatter signal light, oval scattering medium container (10), semitransparent mirror (4) of the 2nd forward scattering signal light, the 2nd dichroic mirror (2), and forward scattering signal light detector (11), wherein the reflection direction of a dichroic mirror (2) is provided with backscatter signal light detector (3), still include first and second upright guide rails (7) that set up on the position of neighbouring oval scattering medium container, first and second upright guide rails (7) set up the left and right sides at oval scattering medium container respectively, be provided with signal light source (1) and pump light source (6) that to follow the vertical removal of upright guide rail on it respectively, the angle of pitch of signal light source (1) and pump light source (6) can be adjusted wantonly.
Description
Technical field
This utility model relates to a kind of scattering container and the method utilizing this container to be scattered, and belongs to optical technical field.
Background technology
nullStimulated scattering of the prior art generally comprises forward scattering and back scattering two kinds，Wherein devise different optical designs for every kind of scattering，To carry out strengthening reception and the analysis of stimulated scattering signal，But，Many times we need to carry out the scatterometry in former and later two directions simultaneously，So that experimental data is effectively analyzed，Now，In order to complete such work，It is accomplished by carrying out respectively twice experiment，Design two different light paths，Cause time cost increase the biggest，And，For the forward scattering individually carried out and back scattering，Being concentrated mainly on 2 of the defect the most all having，First is when pumping light intensity is not the biggest，The stimulated scattering flashlight produced is abnormal little，Now it is accomplished by using highly sensitive instrument to carry out being excited the analysis of flashlight，Such as ICCD，This instrument price is expensive，And operating environment requires higher，If it is desired to the signal analysis instrument that use cost is low，So it is accomplished by using powerful laser instrument，But powerful laser instrument cost is higher；Second point is that the intersecting angle of pump light and flashlight can not adjust, and has and can regulate in prior art, the utility model proposes the device that a kind of front back scattering is compatible, namely both can carry out forward scattering, it is also possible to carries out back scattering.
Utility model content
nullAccording to an embodiment of the present utility model，Provide stimulated scattering compatible apparatus before one，It is characterized in that: include the signal optical source (1) set gradually along light path，First dichroic mirror (2)，The semi-transparent semi-reflecting lens (5) of backscatter signal light before first，Oval scattering medium container (10)，The semi-transparent semi-reflecting lens (4) of the second Forward scattering signal light，Second dichroic mirror (2)，And Forward scattering signal photo-detector (11)，Wherein the reflection direction of the first dichroic mirror (2) is provided with backscatter signal photo-detector (3)，It is additionally included on the position of neighbouring oval scattering medium container the first and second upright guide rails (7) arranged，First and second upright guide rails (7) are separately positioned on the left and right sides of oval scattering medium container，The signal optical source (1) and pump light source (6) that vertically can move it is respectively arranged with along upright guide rail on it，The angle of pitch of described signal optical source (1) and pump light source (6) can arbitrarily regulate.
It is laser instrument according to an embodiment of the present utility model, described signal optical source and described pump light source, and both light has coherence.
According to an embodiment of the present utility model, the whole transmission of flashlight that signal optical source (1) is sent by described first semi-transparent semi-reflecting lens (5), the most semi-transparent semi-reflecting for front backscatter signal light, meanwhile, the flashlight that the second semi-transparent semi-reflecting lens (4) sends for signal optical source (1) also has total reflection effect.
According to an embodiment of the present utility model, the vertical direction of described upright guide rail (7) is perpendicular to the line of two focuses of oval scattering medium container, and upright guide rail is positioned at the side of oval scattering medium container.
According to an embodiment of the present utility model, described oval scattering medium container is all coated with reflecting layer on top layer in addition to the entrance of pump light incident area and flashlight, wherein for pump light incident be not coated with region, reflecting layer be sized to that to ensure that pump light all can be incided oval scattering medium container in the mobile range of upright guide rail (7) by signal optical source (1) and pump light source (6) internal and pass the focus of ellipse, the extreme higher position that wherein signal optical source (1) and pump light source (6) move up on upright guide rail is the position contour with oval two focus lines.
According to an embodiment of the present utility model, provide a kind of method carrying out two-way stimulated scattering, it is characterized in that: when signal optical source (1) is not moved to highest position along upright guide rail, described device carries out stimulated scattering, when signal optical source (1) moves to highest position along upright guide rail, described device carries out front back scattering simultaneously.
It is laser instrument according to an embodiment of the present utility model, described signal optical source and described pump light source, and both light has coherence.
According to an embodiment of the present utility model, when pump light source moves to extreme higher position along upright guide rail, maximum to scattered light intensity front and back.
According to an embodiment of the present utility model, the vertical direction of described upright guide rail (7) is perpendicular to the line of two focuses of oval scattering medium container, and upright guide rail is positioned at the side of oval scattering medium container.
According to an embodiment of the present utility model, described oval scattering medium container is all coated with reflecting layer on top layer in addition to the entrance of pump light incident area and flashlight, wherein for pump light incident be not coated with region, reflecting layer be sized to that to ensure that pump light all can be incided oval scattering medium container in the mobile range of upright guide rail (7) by signal optical source (1) and pump light source (6) internal and pass the focus of ellipse, the extreme higher position that wherein signal optical source (1) and pump light source (6) move up on upright guide rail is the position contour with oval two focus lines.
Accompanying drawing explanation
Accompanying drawing 1 is the device schematic diagram that two-way dispersion of the present utility model occurs to strengthen simultaneously, and back scattering wherein can only occur；
Accompanying drawing 2 is the device schematic diagram that two-way dispersion of the present utility model occurs to strengthen simultaneously, wherein can carry out front back scattering simultaneously.
Wherein 1 represents signal optical source, and 2 represent dichroic mirror, and 3 and 11 represent photo-detector, 4 and 5 represent Forward scattering signal light and the semi-transparent semi-reflecting lens of backscatter signal light, and 6 represent pump light source, and 7 represent upright guide rail, 8 and 9 represent oval focus, and 10 represent oval scattering medium container.
Detailed description of the invention
To describe in detail on the basis of combining accompanying drawing below before and after this utility model to scattering compatible apparatus and method.
Before and after this utility model to the schematic diagram of scattering compatible apparatus as shown in Figure 1, this device includes signal optical source 1, first dichroic mirror 2, the semi-transparent semi-reflecting lens 5 of the first forward-backward algorithm scattered signal light, oval scattering medium container 10, the semi-transparent semi-reflecting lens 4 of the second forward-backward algorithm scattered signal light, second dichroic mirror 2, and Forward scattering signal photo-detector 11, wherein the reflection direction of the first and second dichroic mirrors is respectively provided with detector 3 and 11, be additionally included in neighbouring oval scattering medium container is positioned on position, the left and right sides the first upright guide rail 7 and the second upright guide rail 7 arranged, the pump light source 6 and signal optical source 1 that vertically can move it is respectively arranged with along upright guide rail on two upright guide rails 7.
Wherein signal optical source 1 and pump light source 6 are respectively LASER Light Source, and two LASER Light Sources have certain coherence, for reaching both coherences, same sub-light source can be used to be respectively above-mentioned two LASER Light Source and provide seed source.Generally, the power of pump light source and energy are greater than the power of signal optical source, and the bandwidth of two light sources can make suitably selection according to selected medium, and this belongs to known technology in stimulated scattering, does not repeats at this.Flashlight can be made a distinction by the first dichroic mirror 2 with stimulated scattering light, it allows flashlight by entering oval scattering medium container 10, and by backscatter signal luminous reflectance to backscatter signal photo-detector 3, pump light and forward scattering light can be made a distinction by the second dichroic mirror 2, it allows pump light to enter oval scattering medium container, and by Forward scattering signal luminous reflectance to forward scattering photo-detector 11, before first and second, backscatter signal light semi-transparent semi-reflecting lens 4 and 5 is respectively used to backscatter signal light before making and forms certain vibration in media Containers thus obtain reinforced effects further.The whole transmission of flashlight that wherein signal optical source 1 is sent by semi-transparent semi-reflecting lens 5, the most semi-transparent semi-reflecting for Forward scattering signal and backscatter signal light, simultaneously, second semi-transparent semi-reflecting lens 4 transmission whole for pump light, simultaneously for initial flashlight, also there is total reflection effect, for being incided the inside of oval scattering medium container 10 by the flashlight of dichroic mirror 2 transmission and pump light and passing the first and second focuses 8,9 of oval scattering medium container 10.Forward-scattering signal detector is used for receiving Forward scattering signal light.nullThe vertical direction of two upright guide rails 7 is perpendicular to the line of oval two focuses of scattering medium container，Two upright guide rails lay respectively at left side and the right side of oval scattering medium container，Oval scattering medium container 10 is all coated with reflecting layer on top layer in addition to the incident area position of pump light incident area and flashlight，Wherein be not coated with for flashlight and pump light entrance port region, reflecting layer be sized to ensure that flashlight and pumping all can be incided in the mobile range of upright guide rail 7 that oval scattering medium container is internal and focus through ellipse by signal optical source 1 and pump light source 6，For ensureing the realization of this point，The signal optical source 1 being on upright guide rail 7 and the angle of pitch of pump light source 6 are adjustable，Namely no matter signal optical source 1 and pump light source 6 move to any position on upright guide rail，All can realize flashlight by the regulation of its angle of pitch and pump light enter to inject oval scattering medium container after all can be by the focus of ellipse，The extreme higher position that wherein signal optical source 1 and pump light source 6 move up on upright guide rail is the position contour with oval two focus lines.
To illustrate to the method that scattering is compatible before and after this utility model below.As shown in Figure 1, when signal optical source is not moved to extreme higher position on upright guide rail, this device can only carry out stimulated scattering, as shown in Figure 2, when this signal optical source moves to highest position along upright guide rail, this device can carry out front back scattering simultaneously, and when pumping source moves to highest position along upright guide rail, its front backscatter signal maximum intensity.
Presently in connection with illustrating on the basis of accompanying drawing 1 that this device carries out the process of stimulated scattering, the flashlight sent by signal optical source 1 is by internal successively by a focus of oval scattering medium container by entering oval scattering medium container 10 after semi-transparent semi-reflecting lens 5 after dichroic mirror 2, again by another one focus after being reflected by the reflecting layer of oval scattering medium container afterwards, based on similar process, pump light enters in oval scattering medium container by semi-transparent semi-reflecting lens 4, height on upright guide rail and the angle of pitch i.e. angle between scalable signal beams and pump beam by regulation signal optical source and pump light source.Backward stimulated scattering light is reflexed on detector 3 by dichroic mirror 5.
When needs carry out front back scattering simultaneously, signal optical source is increased to extreme higher position along upright guide rail, as shown in Figure 2, the light that signal optical source sends is linearly by two oval focuses, now by regulating pump light source height on upright guide rail and the angle of pitch i.e. intersecting angle of scalable two light beam, during regulation, remain that pump beam passes the focus of oval scattering medium container.In order to obtain the strongest optical signal, pump light source can be risen to the extreme higher position on upright guide rail.
Now, there is detector 3 and 11 to receive respectively before and after being occurred respectively to scattered signal.
Illustrating just for this utility model above, but can not be interpreted as restriction of the present utility model.The deformation of those skilled in the art's precognition is in protection domain of the present utility model.
Claims (5)
- null1. back scattering compatibility scattering device before a kind，It is characterized in that: include the signal optical source (1) set gradually along light path，First dichroic mirror (2)，The semi-transparent semi-reflecting lens (5) of backscatter signal light before first，Oval scattering medium container (10)，The semi-transparent semi-reflecting lens (4) of the second Forward scattering signal light，Second dichroic mirror (2)，And Forward scattering signal photo-detector (11)，Wherein the reflection direction of the first dichroic mirror (2) is provided with backscatter signal photo-detector (3)，It is additionally included on the position of neighbouring oval scattering medium container the first and second upright guide rails (7) arranged，First and second upright guide rails (7) are separately positioned on the left and right sides of oval scattering medium container，The signal optical source (1) and pump light source (6) that vertically can move it is respectively arranged with along upright guide rail on it，The angle of pitch of described signal optical source (1) and pump light source (6) can arbitrarily regulate.
- Front back scattering compatibility scattering device the most according to claim 1, it is characterised in that: described signal optical source and described pump light source are laser instrument, and both light has coherence.
- Front back scattering compatibility scattering device the most according to claim 1, it is characterized in that: the whole transmission of flashlight that before described first, signal optical source (1) is sent by the semi-transparent semi-reflecting lens (5) of backscatter signal light, the most semi-transparent semi-reflecting for front backscatter signal light, meanwhile, the flashlight that the semi-transparent semi-reflecting lens (4) of the second Forward scattering signal light sends for signal optical source (1) also has total reflection effect.
- Front back scattering compatibility scattering device the most according to claim 1, it is characterized in that: the vertical direction of described upright guide rail (7) is perpendicular to the line of two focuses of oval scattering medium container, upright guide rail is positioned at the side of oval scattering medium container.
- Front back scattering compatibility scattering device the most according to claim 1, it is characterized in that: described oval scattering medium container is all coated with reflecting layer on top layer in addition to the entrance of pump light incident area and flashlight, wherein for pump light incident be not coated with region, reflecting layer be sized to that to ensure that pump light all can be incided oval scattering medium container in the mobile range of upright guide rail (7) by signal optical source (1) and pump light source (6) internal and pass the focus of ellipse, the extreme higher position that wherein signal optical source (1) and pump light source (6) move up on upright guide rail is the position contour with oval two focus lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075061.0U CN205539858U (en) | 2015-12-18 | 2015-12-18 | Compatible scattering device of preceding back scattering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075061.0U CN205539858U (en) | 2015-12-18 | 2015-12-18 | Compatible scattering device of preceding back scattering |
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| Publication Number | Publication Date |
|---|---|
| CN205539858U true CN205539858U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075061.0U Withdrawn - After Issue CN205539858U (en) | 2015-12-18 | 2015-12-18 | Compatible scattering device of preceding back scattering |
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| CN (1) | CN205539858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511198A (en) * | 2015-12-18 | 2016-04-20 | 华北电力大学（保定） | Forward-backward scattering compatible device and method |
| CN111243629A (en) * | 2020-01-21 | 2020-06-05 | 广东紫晶信息存储技术股份有限公司 | Reflective holographic optical storage method and device |
-
2015
- 2015-12-18 CN CN201521075061.0U patent/CN205539858U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511198A (en) * | 2015-12-18 | 2016-04-20 | 华北电力大学（保定） | Forward-backward scattering compatible device and method |
| CN105511198B (en) * | 2015-12-18 | 2018-06-19 | 华北电力大学（保定） | A kind of preceding back scattering compatibility scattering device and method |
| CN111243629A (en) * | 2020-01-21 | 2020-06-05 | 广东紫晶信息存储技术股份有限公司 | Reflective holographic optical storage method and device |
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| 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: 20160831 Effective date of abandoning: 20180619 |