CN201583497U - Optical probe for laser-induced breakdown spectrum - Google Patents
Optical probe for laser-induced breakdown spectrum Download PDFInfo
- Publication number
- CN201583497U CN201583497U CN2009203501957U CN200920350195U CN201583497U CN 201583497 U CN201583497 U CN 201583497U CN 2009203501957 U CN2009203501957 U CN 2009203501957U CN 200920350195 U CN200920350195 U CN 200920350195U CN 201583497 U CN201583497 U CN 201583497U
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- China
- Prior art keywords
- laser
- induced breakdown
- reflective mirror
- high reflective
- coating high
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- Expired - Fee Related
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model relates to an optical probe for laser-induced breakdown spectrum, comprising a shell, a planar quartz glass window, a quartz lens window and an optical fiber joint which are arranged on the shell, as well as an aperture diaphragm, a wide-band dielectric film total-reflecting mirror and an optical fiber coupling lens which are arranged in the shell. The optical probe is characterized by adopting wide-band dielectric film high-reflecting mirror of 200-900nm, and realizing coaxiality of transmitting and receiving. The optical probe utilizes the common wide-band dielectric film high-reflecting mirror to replace a dichroic mirror, has wide spectrum detection range and high efficiency, and can be conveniently applied in site detection of laser-induced breakdown spectrum.
Description
Affiliated technical field
The utility model relates to a kind of optic probe, specifically a kind of optic probe that is used for Laser-induced Breakdown Spectroscopy.
Background technology
In existing Laser-induced Breakdown Spectroscopy research, adopt the lateral scattering light path usually, the lateral scattering light channel structure is simple, generally be applied to the laboratory, and no matter be light path arrangement and angle easy to use, for on-the-spot in-situ investigation, the back scattering light path all is more suitable for.Present business-like back scattering light path optic probe all adopts dichroic mirror to realize the coaxial of exciting light and flashlight, and cost is higher; In addition, for Laser-induced Breakdown Spectroscopy, the flashlight scope is 200～900nm, and it is 400～700nm that general business-like 1064nm dichroic mirror wavelength sees through scope, is difficult to meet the demands.
Summary of the invention
The utility model is at the Laser-induced Breakdown Spectroscopy technical characterstic, and a kind of full spectral range, with low cost, the optic probe device that is easy to realize are provided.
The utility model is made up of several parts of aperture diaphragm, lens and total reflective mirror in the plane silica glass window on optic probe housing, the housing, quartz lens window and fibre-optical splice and the housing, it is characterized in that adopting broadband deielectric-coating high reflective mirror to replace conventional dichroic mirror, it is coaxial that realization transmits and receives, with low cost, than binomial look mirror coating technique, be easy to selection on the one hand, the more important thing is, can realize the detection of full spectral range.For Laser-induced Breakdown Spectroscopy, generally adopt 1064nm wavelength pulse laser instrument as excitation source, its spectrographic detection scope is 200～900nm, it is 400～700nm that present business-like 1064nm dichroic mirror wavelength sees through scope, can not satisfy the detection requirement.Broadband deielectric-coating high reflective mirror greater than 90%, can easily be realized the outgoing of 1064nm exciting light and the coaxial collection of 200～900nm flashlight by broadband deielectric-coating high reflective mirror to the 1064nm transmitance at 200～900nm scope internal reflection rate＞99%.The utility model utilizes common broadband deielectric-coating high reflective mirror to replace dichroic mirror, and cost is low, is easy to purchase and realize.
Following accompanying drawing is further described the utility model.
Description of drawings
Fig. 1 is the utility model optic probe apparatus structure synoptic diagram;
Among the figure: 1 is housing, and 2 is quartzy flat glass window, and 3 is aperture diaphragm, and 4 is the first broadband deielectric-coating high reflective mirror, and 5 is the quartz lens window, and 6 is the second broadband deielectric-coating high reflective mirror, and 7 is the optical fiber coupled lens, and 8 is fibre-optical splice.
Embodiment
As shown in Figure 1, the 1064nm laser that is used for induced breakdown shines the plane silica glass window 2 on the housing 1 earlier, guarantee the incident light vertical incidence by the autocollimation method, incident laser is through the aperture diaphragm 3 and the first broadband deielectric-coating high reflective mirror 4, focus on sample by quartz lens window 5 then, the plasma signal that the breakdown back of sample produces is collected through quartz lens window 5 again, behind the collimation, reflex to the second broadband deielectric-coating high reflective mirror 6 by the first broadband deielectric-coating high reflective mirror 4 then, be coupled into the optical fiber at fibre-optical splice 8 places by the flashlight of the second broadband deielectric-coating high reflective mirror 6 reflection through optical fiber coupled lens 7 then, analyze by optical fiber lead-in light spectrometer again.
Claims (2)
1. optic probe that is used for Laser-induced Breakdown Spectroscopy, form by aperture diaphragm (3), the first broadband deielectric-coating high reflective mirror (4), the second broadband deielectric-coating high reflective mirror (6) and optical fiber coupled lens (7) in the plane silica glass window (2) on optic probe housing (1), the housing, quartz lens window (5) and fibre-optical splice (8) and the housing, it is characterized in that it is coaxial that broadband deielectric-coating high reflective mirror transmits and receives.
2. a kind of optic probe that is used for Laser-induced Breakdown Spectroscopy according to claim 1 is characterized in that the first broadband deielectric-coating high reflective mirror (4) that this light path device is used and the spectral reflectance scope of the second broadband deielectric-coating high reflective mirror (6) are 200～900nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203501957U CN201583497U (en) | 2009-12-29 | 2009-12-29 | Optical probe for laser-induced breakdown spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203501957U CN201583497U (en) | 2009-12-29 | 2009-12-29 | Optical probe for laser-induced breakdown spectrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583497U true CN201583497U (en) | 2010-09-15 |
Family
ID=42725501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203501957U Expired - Fee Related CN201583497U (en) | 2009-12-29 | 2009-12-29 | Optical probe for laser-induced breakdown spectrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411932A (en) * | 2013-07-30 | 2013-11-27 | 中国科学院上海技术物理研究所 | LIBS testing system and method based on remote zoom optical multiplexing |
| CN112629327A (en) * | 2014-07-08 | 2021-04-09 | 魏剑维 | Optical sleeve arrow |
-
2009
- 2009-12-29 CN CN2009203501957U patent/CN201583497U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411932A (en) * | 2013-07-30 | 2013-11-27 | 中国科学院上海技术物理研究所 | LIBS testing system and method based on remote zoom optical multiplexing |
| CN103411932B (en) * | 2013-07-30 | 2016-03-30 | 中国科学院上海技术物理研究所 | Based on LIBS test macro and the method for testing of remote zoom path multiplexing |
| CN112629327A (en) * | 2014-07-08 | 2021-04-09 | 魏剑维 | Optical sleeve arrow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20101229 |