CN108152267A - A kind of method of efficient excitation metallized optical fibre Surface enhanced Raman scattering - Google Patents
A kind of method of efficient excitation metallized optical fibre Surface enhanced Raman scattering Download PDFInfo
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- CN108152267A CN108152267A CN201810092571.0A CN201810092571A CN108152267A CN 108152267 A CN108152267 A CN 108152267A CN 201810092571 A CN201810092571 A CN 201810092571A CN 108152267 A CN108152267 A CN 108152267A
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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Abstract
The present invention relates to a kind of methods of efficient excitation metallized optical fibre Surface enhanced Raman scattering, using column vectorial field, as exciting light, enhance Raman scattering (SERS) effect from inside of optical fibre inducing metal optical fiber surface.By the use of high SERS active metallizations conical fiber as probe, excited compared to linearly polarized light, column vectorial field can significantly increase electromagnetic field so as to improve SERS detectivities.Column vectorial field is transmitted to probe end from inside of optical fibre, it is matched to meet wave vector in column vectorial field and surface phasmon, local surface plasmon resonance is realized in the end of metal-coated membrane optical fiber needle point, and then the intensity of Raman emission is improved, wherein column vectorial field causes grating directly to generate in a fiber using automatically controlled adjustable pictophonetic characters.The present invention it is easy to operate, Raman enhancing effect is notable, while device is simply easy of integration, available for solid powder, liquid, three kinds of systems of gas Raman signal detection.
Description
Technical field
The invention belongs to surface-enhanced Raman, field is related to a kind of efficiently excitation metallized optical fibre Surface enhanced Raman scattering
Method.
Background technology
Surface enhanced Raman spectroscopy (SERS) because it can significantly increase the characteristic of the intrinsic Raman signal of material, becomes point
The important tool of detection molecules is analysed, is widely used in the various fields such as chemistry, biology, food security.Surface-enhanced Raman leads to
Often realized by local surface etc. from resonance (LSPR).Local surface etc. can be produced from resonance (LSPR) in sub-wavelength dimensions
Raw significant electric-field enhancing effect, enhances the interaction of light and substance, so as to fulfill the enhancing of Raman signal.Many nanometers are expensive
Metal structure is used for generating LSPR effects, including nanosphere, metallized optical fibre probe, nanometer rods and nanometer grating etc..Wherein, it is golden
Categoryization optical fiber has the characteristic of excellent anti-interference and low noise, easy of integration, can make optics while detectivity is improved
Excitation and collection system are simplified.
The many factors such as SERS performances and excitation polarization state, substrate, system signal collection mode are related, wherein exciting light
Polarization state is one of key factor.Radial polarisation vector light and angular polarization vector light, two kinds of typical column vector light, because of it
Special polarization characteristic is by extensive concern.Radial polarisation vector light can generate extremely strong indulge in the case of tightly focused in focal point
To electric field component, there are numerous applications in terms of super-resolution imaging, particle-capture, Raman scattering enhancing.It is drawn in view of surface enhanced
It is graceful mainly caused by the local surface plasmon resonance (LSPR) of nanostructured and angular vector light and radial vector light it is horizontal
Symmetry, particularity and the similitude of section polarisation distribution, in addition, metallized optical fibre has anti-interference, low noise, easy of integration
Characteristic, so radial polarisation vector light and angular vector light are improving SERS spies for the Raman scattering of internal excitation metallized optical fibre
Surveying has very big potentiality in sensitivity.Find mode and the optimization metallization that the vector light suitable for optical fiber is generated and transmitted
The geometry and surface topography of optical fiber are necessitated with matching the best launching efficiency of vector optical mode acquisition.
Invention content
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes that a kind of efficiently excitation metallized optical fibre surface enhanced is drawn
The method of graceful scattering.
Technical solution
A kind of method of efficient excitation metallized optical fibre Surface enhanced Raman scattering, it is characterised in that step is as follows：
Step 1 causes raster method directly to generate column vector light in a fiber using adjustable pictophonetic characters：Optical fiber 5 is placed in preceding object
In the light path of mirror 4, linear polarization light source 1, band pass filter 2 and half-wave plate 3 are equipped in the input path of preceding object lens 4 successively；Filter mould
Device 6 is located at preceding 4 one end of object lens set on optical fiber 5, and the output terminal of supersonic generator 8 loads on 5 middle part of optical fiber, input terminal connection
Radio-frequency signal generator 7；
Start linear polarization light source 1 and radio-frequency signal generator 7, passed in the ultrasonic wave-coupled to optical fiber that supersonic generator generates
It is defeated, linear polarization grating is formed in a fiber to be modulated, by rotatable halfwave plate 3 to adjust the polarization direction of light source emergent light,
The frequency of radio-frequency signal generator 7 is adjusted simultaneously until meeting pattern match, so as to which the vector basic mode in fibre core is converted to column arrow
Measure light field；
Step 2 draws cone method and photoinduction chemical deposition to prepare metallized optical fibre probe using flame：It is drawn and bored using flame
Method prepares optical taper in one end of optical fiber 5, then plates noble metal on conical fiber surface using photoinduction electroless deposition processes, obtains light
The metallized optical fibre probe 9 of one end of fibre 5；
Step 3 excites metallized optical fibre Surface enhanced Raman spectroscopy using column vector light in optical fiber：By metallized optical fibre
Probe 9 is immersed in the liquid containing measured matter or by the liquid containing measured matter or solid powder vertically coated in gold
Optical fiber 5 with metallized optical fibre probe 9 is placed in 4 light path of preceding object lens of light path described in step 1 by 9 surface of categoryization optical fiber probe
On, 9 front end of metallized optical fibre probe is equipped with rear object lens 10, and being equipped with long wave passband side successively in the injection light path of rear object lens 10 filters
Piece 11, fiber adapter 12 and Raman spectrometer 13；
Start linear polarization light source 1 and radio-frequency signal generator 7, passed in the ultrasonic wave-coupled to optical fiber that supersonic generator generates
It is defeated, linear polarization grating is formed in a fiber to be modulated, by rotatable halfwave plate 3 to adjust the polarization direction of light source emergent light,
The frequency of radio-frequency signal generator 7 is adjusted simultaneously until meeting pattern match, so as to which the vector basic mode in fibre core is converted to column arrow
Measure light field；After the outgoing signal of metallized optical fibre probe 9 is collimated by rear object lens 10, filtered out by long wave passband side filter plate 11
Exciting light, the Raman signal of generation are collected through fiber adapter 12, are handled by Raman spectrometer 13.
The cone angle of the optical taper is 30 degree.
The photoinduction electroless deposition processes are in the method for conical fiber surface metalation：It is inclined less than the line of 1mW with power
The light that shakes immerses the optical taper that flame draws cone method to prepare in the chemical reaction liquid for generating noble metal, thang-kng vertically as induction light
Plate 5-60min.
The noble metal is gold, silver or copper.
The layer of precious metal nano surface granular size of the plating noble metal is no more than excitation wavelength size.
Advantageous effect
A kind of method of efficient excitation metallized optical fibre Surface enhanced Raman scattering proposed by the present invention, utilizes column vector
Light field as exciting light, enhances Raman scattering (SERS) effect from inside of optical fibre inducing metal optical fiber surface.Utilize high SERS
Active metallization conical fiber is excited compared to linearly polarized light as probe, column vectorial field can significantly increase electromagnetic field from
And improve SERS detectivities.Column vectorial field is transmitted to probe end from inside of optical fibre, in column vectorial field and table
Face phasmon meet wave vector it is matched in the case of, the end of metal-coated membrane optical fiber needle point realize local surface phasmon be total to
It shakes, and then improves the intensity of Raman emission, wherein column vectorial field causes grating in a fiber using automatically controlled adjustable pictophonetic characters
Directly generate.The present invention is easy to operate, and Raman enhancing effect is notable, while device is simply easy of integration, available for solid powder, liquid
The Raman signal detection of three kinds of body, gas systems.
Description of the drawings
Fig. 1：Utilize the light path system of column radial vector light excitation metallized optical fibre Surface Raman Spectra in optical fiber
Fig. 2：The optical taper of cone method preparation is drawn using flame
Fig. 3：The silver layer surface that the silver-plated conical fiber probe of embodiment obtains
Specific embodiment
In conjunction with embodiment, attached drawing, the invention will be further described：
The present invention is intended to provide a kind of efficiently excite metallized optical fibre surface-enhanced raman scattering using column vector light in optical fiber
Method, design it is as follows：
By the use of column vector light as exciting light, from inside of optical fibre excitation metallized optical fibre surface SERS effects, can obtain
It obtains and excites more significant Raman enhancement effect than linearly polarized light.By the use of the conical fiber that metallizes as probe, column vector light passes
Probe end, the local surface at excitation metal medium interface etc. is transported to from resonance and surface plasmon-polarition, and then enhances light
With the interaction of substance, Raman scattering enhancing is realized.
Conceive accordingly, the present invention adopts the following technical scheme that：
Raster method is caused directly to generate column vector light in a fiber using adjustable pictophonetic characters, by the polarization for adjusting incident field
The refractive index modulation degree of direction and automatically controlled adjustable grating realizes phase matched, to generate column vectorial field in a fiber.
By the use of high SERS active metallizations conical fiber as probe.Cone is first drawn in the preparation of metallization conical fiber probe,
Layer of precious metal is plated again.Optical fiber is into cone using hot-drawn cone method method or chemical method；The metallization processes of optical fiber are heavy without electricity using photoinduction
Area method induces luminous power and sedimentation time and controls the surface of metal-coated fiber by optimizing in photoinduction electro-less deposition process
Pattern.
Specific embodiment：
1. raster method is caused directly to generate column vector light in a fiber using adjustable pictophonetic characters：
As shown in Figure 1, linear polarization light source 1 generates linearly polarized light, band pass filter 2 limits emergent light line width, half
Wave plate 3 is adjusted the polarization direction of linearly polarized light, and object lens 4 are by space optical coupling into optical fiber 5, and the light transmitted in optical fiber is through filter
Mold 6 filters out and loads acoustic signals by supersonic generator 8 after high-order mode, and wherein acoustic signals are penetrated by the generation of radio-frequency signal generator 7
Frequency signal driving ultrasonic transducer generates.It is transmitted in the ultrasonic wave-coupled to optical fiber that supersonic generator generates, in a fiber shape
It is modulated into linear polarization grating, so as to which the vector basic mode in fibre core is converted to column vectorial field.
2. cone method and photoinduction chemical deposition is drawn to prepare the silver-plated optical fiber probe of high SERS activity using flame：
Cone method is drawn to prepare optical taper using flame first, control cone angle size by controlling tensile speed, make cone angle big
It is about 10 degree small, as shown in Figure 2.Secondly using photoinduction electroless deposition processes in conical fiber electroplate, so as to prepare silver-plated light
Fine probe 9.400uW linearly polarized lights are as induction light, sodium potassium tartrate tetrahydrate and silver ammino solution 1:1 mixed liquor is as reaction solution, optical fiber
Cone is vertical to be immersed in reaction solution, thang-kng plating 20min.The silver layer surface being prepared is coarse, silver nano-grain diameter about 300nm,
As shown in Figure 3.
3. excite silver-plated optical fiber surface Raman spectrum using column radial vector light in optical fiber：
Silver-plated optical taper is immersed vertically in the alcohol dispersion liquid of malachite green and impregnate 5min.Using being generated in above-mentioned optical fiber
Column radial vector light, the Raman of the malachite green molecule of the above-mentioned high SERS activity conical fiber detecting probe surface attachment of deexcitation
Signal.As shown in Figure 1, after outgoing signal is collimated by object lens 10, exciting light is filtered out using long wave passband side filter plate 11.It draws
Graceful signal is collected through fiber adapter 12, is acquired into Raman spectrometer 13.In the case of identical exciting power and optical fiber probe,
The Raman spectrometer time of integration is identical, comparison column vector light and the SERS signal intensity of linear polarization excitation, as a result column vector
Light including radial vector light and angular vector light, can further significantly improve optical fiber surface Raman compared to linear polarization excitation and dissipate
Penetrate intensity.
Claims (5)
- A kind of 1. method of efficient excitation metallized optical fibre Surface enhanced Raman scattering, it is characterised in that step is as follows：Step 1 causes raster method directly to generate column vector light in a fiber using adjustable pictophonetic characters：Optical fiber (5) is placed in preceding object lens (4) in light path, linear polarization light source (1), band pass filter (2) and half-wave plate are equipped in the input path of preceding object lens (4) successively (3)；For mode filter (6) set on optical fiber (5) positioned at preceding object lens (4) one end, the output terminal of supersonic generator (8) loads on optical fiber (5) middle part, input terminal connection radio-frequency signal generator (7)；Start linear polarization light source (1) and radio-frequency signal generator (7), passed in the ultrasonic wave-coupled to optical fiber that supersonic generator generates It is defeated, linear polarization grating is formed in a fiber and is modulated, by rotatable halfwave plate (3) to adjust the polarization side of light source emergent light To, while the frequency of radio-frequency signal generator (7) is adjusted until meeting pattern match, so as to which the vector basic mode in fibre core is converted to column Shape vectorial field；Step 2 draws cone method and photoinduction chemical deposition to prepare metallized optical fibre probe using flame：Cone method is drawn to exist using flame One end of optical fiber (5) prepares optical taper, then plates noble metal on conical fiber surface using photoinduction electroless deposition processes, obtains optical fiber (5) the metallized optical fibre probe (9) of one end；Step 3 excites metallized optical fibre Surface enhanced Raman spectroscopy using column vector light in optical fiber：By metallized optical fibre probe (9) it immerses vertically in the liquid containing measured matter or the liquid containing measured matter or solid powder is coated in metal Change optical fiber probe (9) surface, the optical fiber (5) with metallized optical fibre probe (9) is placed in the preceding object lens of light path described in step 1 (4) in light path, metallized optical fibre probe (9) front end is equipped with rear object lens (10), is equipped with successively in the injection light path of rear object lens (10) Long wave passband side filter plate (11), fiber adapter (12) and Raman spectrometer (13)；Start linear polarization light source (1) and radio-frequency signal generator (7), passed in the ultrasonic wave-coupled to optical fiber that supersonic generator generates It is defeated, linear polarization grating is formed in a fiber and is modulated, by rotatable halfwave plate (3) to adjust the polarization side of light source emergent light To, while the frequency of radio-frequency signal generator 7 is adjusted until meeting pattern match, so as to which the vector basic mode in fibre core is converted to column Vectorial field；After the outgoing signal of metallized optical fibre probe (9) is collimated by rear object lens (10), by long wave passband side filter plate (11) exciting light is filtered out, the Raman signal of generation is collected through fiber adapter (12), by Raman spectrometer (13) processing.
- 2. the method for metallized optical fibre Surface enhanced Raman scattering is efficiently excited according to claim 1, it is characterised in that：Institute The cone angle for stating optical taper is 30 degree.
- 3. the method for efficient excitation metallized optical fibre Surface enhanced Raman scattering according to claim 1 or claim 2, feature exist In：The photoinduction electroless deposition processes are in the method for conical fiber surface metalation：Made with linearly polarized light of the power less than 1mW To induce light, the optical taper that flame draws cone method to prepare is immersed vertically in the chemical reaction liquid for generating noble metal, thang-kng plating 5- 60min。
- 4. according to the method for the efficient excitation metallized optical fibre Surface enhanced Raman scattering of claim 1 or 3, feature exists In：The noble metal is gold, silver or copper.
- 5. according to the method for the efficient excitation metallized optical fibre Surface enhanced Raman scattering of claim 1 or 3, feature exists In：The layer of precious metal nano surface granular size of the plating noble metal is no more than excitation wavelength size.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129267A1 (en) * | 2019-12-27 | 2021-07-01 | 深圳大学 | Tip-enhanced raman spectroscope microscopic imaging device |
| CN113437626A (en) * | 2021-05-31 | 2021-09-24 | 福州大学 | Device and method for enhancing self-excited Raman laser |
| CN113740877A (en) * | 2021-07-21 | 2021-12-03 | 万合(洛阳)光电技术有限公司 | Low-noise all-time water vapor laser radar detection system |
| CN114136890A (en) * | 2021-12-10 | 2022-03-04 | 重庆大学 | Adaptive device suitable for hollow capillary liquid spectrum sensing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120035749A (en) * | 2010-10-06 | 2012-04-16 | 단국대학교 산학협력단 | Simultaneous measuring sensor system of lspr and sers signal based on optical fiber |
| CN103592282A (en) * | 2013-11-11 | 2014-02-19 | 北京航空航天大学 | Conduction surface plasmon based Raman scattering base and application method thereof |
| CN105137624A (en) * | 2015-09-25 | 2015-12-09 | 西北工业大学 | Device and method for generating columnar vector beams in optical fiber by utilizing electrically-controlled tunable optical grating |
| CN105510640A (en) * | 2015-11-27 | 2016-04-20 | 武汉大学 | Metal nanowire surface plasmon nano light source-based optical microscope |
| CN105973868A (en) * | 2016-05-09 | 2016-09-28 | 西北工业大学 | Optical fiber vector optical probe type tip-enhanced Raman spectroscopy and spectrum collection method |
| CN106124478A (en) * | 2016-08-18 | 2016-11-16 | 东南大学 | The fiber Raman of tapered fiber and microspheres lens strengthens probe and manufacture method |
| CN107561057A (en) * | 2017-08-21 | 2018-01-09 | 重庆大学 | Double enhancing Raman detection systems with local surface plasma amplifier |
-
2018
- 2018-01-31 CN CN201810092571.0A patent/CN108152267B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120035749A (en) * | 2010-10-06 | 2012-04-16 | 단국대학교 산학협력단 | Simultaneous measuring sensor system of lspr and sers signal based on optical fiber |
| CN103592282A (en) * | 2013-11-11 | 2014-02-19 | 北京航空航天大学 | Conduction surface plasmon based Raman scattering base and application method thereof |
| CN105137624A (en) * | 2015-09-25 | 2015-12-09 | 西北工业大学 | Device and method for generating columnar vector beams in optical fiber by utilizing electrically-controlled tunable optical grating |
| CN105510640A (en) * | 2015-11-27 | 2016-04-20 | 武汉大学 | Metal nanowire surface plasmon nano light source-based optical microscope |
| CN105973868A (en) * | 2016-05-09 | 2016-09-28 | 西北工业大学 | Optical fiber vector optical probe type tip-enhanced Raman spectroscopy and spectrum collection method |
| CN106124478A (en) * | 2016-08-18 | 2016-11-16 | 东南大学 | The fiber Raman of tapered fiber and microspheres lens strengthens probe and manufacture method |
| CN107561057A (en) * | 2017-08-21 | 2018-01-09 | 重庆大学 | Double enhancing Raman detection systems with local surface plasma amplifier |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129267A1 (en) * | 2019-12-27 | 2021-07-01 | 深圳大学 | Tip-enhanced raman spectroscope microscopic imaging device |
| CN113437626A (en) * | 2021-05-31 | 2021-09-24 | 福州大学 | Device and method for enhancing self-excited Raman laser |
| CN113437626B (en) * | 2021-05-31 | 2022-07-12 | 福州大学 | Device and method for enhancing self-excited Raman laser |
| CN113740877A (en) * | 2021-07-21 | 2021-12-03 | 万合(洛阳)光电技术有限公司 | Low-noise all-time water vapor laser radar detection system |
| CN113740877B (en) * | 2021-07-21 | 2024-09-27 | 万合(洛阳)光电技术有限公司 | Low-noise all-day-time water vapor laser radar detection system |
| CN114136890A (en) * | 2021-12-10 | 2022-03-04 | 重庆大学 | Adaptive device suitable for hollow capillary liquid spectrum sensing |
| CN114136890B (en) * | 2021-12-10 | 2024-03-29 | 重庆大学 | Adapting device suitable for hollow capillary liquid spectrum sensing |
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