CN110286504A - A kind of adjustable structure of circular dichroism based on metal micro-nanostructure - Google Patents
A kind of adjustable structure of circular dichroism based on metal micro-nanostructure Download PDFInfo
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- CN110286504A CN110286504A CN201910627435.1A CN201910627435A CN110286504A CN 110286504 A CN110286504 A CN 110286504A CN 201910627435 A CN201910627435 A CN 201910627435A CN 110286504 A CN110286504 A CN 110286504A
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- medium layer
- inflating medium
- circular dichroism
- nanostructure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/486—Measuring temperature based on the expansion or contraction of a material the material being a solid using microstructures, e.g. made of silicon
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/0009—Materials therefor
- G02F1/009—Thermal properties
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
Abstract
The present invention relates to a kind of adjustable structure of the circular dichroism based on metal micro-nanostructure, including substrate layer, it is provided with the structural unit of periodic arrangement on the substrate layer, is provided with metal layer above the structural unit；The structural unit includes the first inflating medium layer, the second inflating medium layer；The first inflating medium layer is hollow structure, in the second inflating medium layer nesting and the first inflating medium layer, also, forms gap between the first inflating medium layer and the second inflating medium layer；The adjustable structure of circular dichroism based on metal micro-nanostructure, structure is simple, and manufacture craft is simple, convenient for large-scale production production, has good circular dichroism, lays the foundation for the application of circular dichroism；Different degrees of variation can be generated to the first inflating medium layer, the second inflating medium layer, to bring variation to the circular dichroism of the structure, pass through the change of detection detection circular dichroism, so that it may realize the detection function of temperature.
Description
Technical field
The invention belongs to optical texture technical fields, and in particular to a kind of circular dichroism based on metal micro-nanostructure is adjustable
Structure.
Background technique
Circularly polarized light principle is that and have the phase relation of (2n+1/2) π when two beam same frequencys, direction of vibration are orthogonal,
Circularly polarized light can be obtained after this two plane polarizations optical superposition；When linearly polarized light impinges perpendicularly on quarter-wave plate, if line
When the direction of vibration of polarised light and the optical axis included angle of quarter-wave plate are positive and negative 45 °, the light being emitted from quarter-wave plate is
For circularly polarized light.
Absorbability, the circular dichroism of circularly polarized light have attracted many scientific research personnel to study it, and it is inclined how to improve circle
Absorbability, the circular dichroism of vibration light have great significance.Circularly polarized light can be used to detect chiral structure, according to having disclosed
Technology, circular dichroism (CD, circulardichroism) be research one highly important means of chipal compounds, in spy
As the left and right rotation of the positive and negative and optical rotatory spectrum of Cotton effect on standing wave is long, the macroscopic view mark of chiral enantiomer has same
Effect, and can be determined by the absolute configuration of some chiral enantiomers of rule.
A chiral etymology indicates the symmetry of structure, there is important meaning in a variety of subjects in Greek.If certain
Object is different from its mirror image, then it is referred to as " chiral ", and its mirror image cannot be overlapped with the original, just as left hand with
The right hand each other mirror image and can not overlap.Chirality is the essential characteristic of life process, and the organic molecule for constituting life entity is most
It is all chiral molecules.Circularly polarized light can be used to detect these chiral molecules.
Therefore, the characteristics such as absorbability, the circular dichroism of circularly polarized light how are improved, there is very important meaning.
The some optical textures provided in the prior art, the circular dichroism of circularly polarized light are few generally within 10%
Optical texture more than 10%, there is very big deficiencies for circular dichroism.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of adjustable knots of the circular dichroism based on metal micro-nanostructure
Structure.
For this purpose, the present invention provides a kind of adjustable structure of the circular dichroism based on metal micro-nanostructure, including substrate layer,
It is provided with the structural unit of periodic arrangement on the substrate layer, is provided with metal layer above the structural unit；The structure
Unit includes the first inflating medium layer, the second inflating medium layer；The first inflating medium layer is hollow structure, and described second is swollen
In swollen dielectric layer nesting and the first inflating medium layer, also, between the first inflating medium layer and the second inflating medium layer between formation
Gap.
The structural unit is L-shaped structure.
The structural unit is U-shaped structure.
The structural unit is T-shaped structure.
The first inflating medium layer is different from the thickness of the second inflating medium layer.
The thickness difference of the first inflating medium layer and the second inflating medium layer is 40nm.
The substrate layer is made of silica.
The width at gap is 4nm~40nm.
The period of the structural unit arrangement is 100nm~300nm.
The period of the structural unit arrangement is 200nm.
Beneficial effects of the present invention: the adjustable knot of this circular dichroism based on metal micro-nanostructure provided by the invention
Structure, structure is simple, and manufacture craft is simple, convenient for large-scale production production, has good circular dichroism, for answering for circular dichroism
With laying the foundation；The adjustable structure of circular dichroism based on metal micro-nanostructure, by different thermal absorptivities are arranged first
Inflating medium layer, the second inflating medium layer can be to the first inflating medium layers, second when environment temperature changes
Inflating medium layer generates different degrees of variation, to bring variation to the circular dichroism of the structure, passes through detection detection circle two
The change of color, so that it may realize the detection function of temperature.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram of the adjustable structure of circular dichroism based on metal micro-nanostructure.
Fig. 2 is the structural schematic diagram one of structural unit.
Fig. 3 is the structural schematic diagram two of structural unit.
Fig. 4 is the structural schematic diagram three of structural unit.
Fig. 5 is the circular dichroism schematic diagram one of the adjustable structure of circular dichroism based on metal micro-nanostructure.
Fig. 6 is the circular dichroism schematic diagram two of the adjustable structure of circular dichroism based on metal micro-nanostructure.
Fig. 7 is the scale diagrams of the structural unit of L-shaped structure.
In figure: 1, substrate layer；2, structural unit；3, metal layer；4, the first inflating medium layer；5, the second inflating medium layer；
6, gap.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality
Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
Embodiment 1
Present embodiments provide a kind of adjustable structure of the circular dichroism based on metal micro-nanostructure as shown in Figure 1, including lining
Bottom 1, substrate layer 1 mainly play support, light transmission effect, and therefore, substrate layer 1 is generally made of silica；The substrate layer 1
On be provided with the structural unit 2 of periodic arrangement, the top of the structural unit 2 is provided with metal layer 3, and structural unit 2 is chirality
Structure can generate circular dichroism when circularly polarized light is incident on multiple structural units 2 of periodic arrangement；The structure
Unit 2 includes the first inflating medium layer 4, the second inflating medium layer 5；The first inflating medium layer 4 is hollow structure, described the
Two inflating medium layer 5 it is nested in the first inflating medium layer 4, also, the first inflating medium layer 4 and the second inflating medium layer 5 it
Between formed gap 6；First inflating medium layer 4 is made from the second inflating medium layer 5 of the material of the different coefficients of expansion, in circular polarization
When light is incident on structural unit 2, difference in height can be generated between the first inflating medium layer 4 and the second inflating medium layer 5, together
When, the gap 6 between the first inflating medium layer 4 and the second inflating medium layer 5 can also change, and will change structural unit 2
To the circular dichroism of original circularly polarized light, it is only necessary to detect the circle of the adjustable structure of circular dichroism based on metal micro-nanostructure
Dichromatic variation, so that it may which temperature is detected.
Further, as shown in Fig. 2, the structural unit 2 is L-shaped structure, also, the first inflating medium layer 4 is hollow
Structure, the second inflating medium layer 5 it is nested in the first inflating medium layer 4, also, the first inflating medium layer 4 and second swollen
Gap 6 is formed between swollen dielectric layer 5, air is filled in gap 6, when changing temperature, the first inflating medium layer 4 and second swollen
Swollen dielectric layer 5 will appear difference in height, to regulate and control the circular dichroism of L-shaped structure unit 2；The distance 4-40nm in gap 6, in order to
Circularly polarized light couples the first inflating medium layer 4 with L-shaped structure unit 2 and not only changes in height with the second inflating medium layer 5, and
And change is also generated on the gap 6 between the first inflating medium layer 4 and the second inflating medium layer 5, so to circular dichroism shadow
Ring big, regulation high sensitivity.
Further, as shown in figure 3, the structural unit 2 is U-shaped structure, two arm lengths of U-shaped structure are different, also,
First inflating medium layer 4 is hollow structure, in 5 nesting of the second inflating medium layer and the first inflating medium layer 4, also, the
Gap 6 is formed between one inflating medium layer 4 and the second inflating medium layer 5, air is filled in gap 6, when changing temperature, the
One inflating medium layer 4 and the second inflating medium layer 5 will appear difference in height, to regulate and control the circular dichroism of L-shaped structure unit 2；Between
The distance 4-40nm of gap 6, in order to which circularly polarized light couples the first inflating medium layer 4 and the second inflating medium with L-shaped structure unit 2
Layer 5 not only changes in height, but also also generates on the gap 6 between the first inflating medium layer 4 and the second inflating medium layer 5
Change, so influencing big, regulation high sensitivity on circular dichroism.
Further, as shown in figure 4, the structural unit 2 is T-shaped structure；The structural unit 2 of T-shaped structure is capable of providing
More electronic vibration paths, in this way, more resonance modes and circular dichroism signal peak will be generated；Likewise, changing temperature
When spending, the first inflating medium layer 4 and the second inflating medium layer 5 will appear difference in height, to regulate and control L-shaped structure unit 2
Circular dichroism；The distance 4-40nm in gap 6, in order to circularly polarized light couple with L-shaped structure unit 2 first inflating medium layer 4 with
Second inflating medium layer 5 not only changes in height, but also between the first inflating medium layer 4 and the second inflating medium layer 5
Also change is generated on gap 6, so influencing big, regulation high sensitivity on circular dichroism.
Further, the first inflating medium layer 4 and the second inflating medium layer 5 are by polymethyl methacrylate, rubber, ring
Any two kinds of different materials such as oxygen resin are made.
Further, metal layer 3 be by noble metal gold or silver or copper at, the thickness of metal layer 3 be 10nm~
30nm, preferential can choose 29nm.
Further, the thickness difference of the first inflating medium layer 4 and the second inflating medium layer 5 is 40nm.
Further, the width at gap 6 is 4nm~40nm, and the preferential width that can choose gap 6 is
10nm, 20nm, 30nm etc..
The period that the structural unit 2 arranges is 100nm~300nm, the preferential week that can choose the arrangement of structural unit 2
Phase is 100nm, 200nm, 250nm etc..
Embodiment 2
Present embodiments provide a kind of adjustable structure of the circular dichroism based on metal micro-nanostructure as shown in Figure 1, including lining
Bottom 1, substrate layer 1 mainly play support, light transmission effect, and therefore, substrate layer 1 is generally made of silica；The substrate layer 1
On be provided with the structural unit 2 of periodic arrangement, structural unit 2 is L-shaped structure, and the size of each part of structural unit 2 such as Fig. 7
Shown, the structural unit 2 includes the first inflating medium layer 4, the second inflating medium layer 5；The first inflating medium layer 4 is sky
Core structure, the second inflating medium layer 5 it is nested in the first inflating medium layer 4, also, the first inflating medium layer 4 and second
Gap 6 is formed between inflating medium layer 5；First inflating medium layer 4 is the material of the different coefficients of expansion from the second inflating medium layer 5
It is made, when circularly polarized light is incident on structural unit 2, can be produced between the first inflating medium layer 4 and the second inflating medium layer 5
Raw difference in height, meanwhile, the gap 6 between the first inflating medium layer 4 and the second inflating medium layer 5 can also change, Jiu Huigai
Circular dichroism of the structure changes unit 2 to original circularly polarized light, it is only necessary to which detecting the circular dichroism based on metal micro-nanostructure can
The variation of the circular dichroism of the structure of tune, so that it may which temperature is detected；When changing temperature, the first inflating medium layer
4 and second inflating medium layer 5 will appear difference in height, to regulate and control the circular dichroism of L-shaped structure unit 2；The distance 4- in gap 6
40nm, in order to which circularly polarized light couples the first inflating medium layer 4 and the second inflating medium layer 5 not only in height with L-shaped structure unit 2
Change on degree, and also generate change on the gap 6 between the first inflating medium layer 4 and the second inflating medium layer 5, so right
Circular dichroism influences big, regulation high sensitivity.It is illustrated in figure 5 under original state, the first inflating medium layer 4 and the second expansion are situated between
When 5 difference in height of matter layer is 0, it is somebody's turn to do the circular dichroism schematic diagram of the adjustable structure of circular dichroism based on metal micro-nanostructure；Fig. 6 institute
It is shown as after changing environment temperature, when the first inflating medium layer 4 and 5 difference in height of the second inflating medium layer are 40nm, metal should be based on
The circular dichroism schematic diagram of the adjustable structure of the circular dichroism of micro-nano structure.
In conclusion being somebody's turn to do the adjustable structure of circular dichroism based on metal micro-nanostructure, structure is simple, manufacture craft letter
It is single, convenient for large-scale production production, there is good circular dichroism, lay the foundation for the application of circular dichroism；It should be based on metal
The adjustable structure of the circular dichroism of micro-nano structure, the first inflating medium layer 4, second by the way that different thermal absorptivities are arranged, which expands, to be situated between
Matter layer 5 can be different to 5 layers of the first inflating medium layer 4, the second inflating medium generation when environment temperature changes
The variation of degree passes through the change of detection detection circular dichroism, so that it may real to bring variation to the circular dichroism of the structure
The detection function of existing temperature.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure, it is characterised in that: described including substrate layer (1)
It is provided with the structural unit (2) of periodic arrangement on substrate layer (1), is provided with metal layer (3) above the structural unit (2)；
The structural unit (2) includes the first inflating medium layer (4), the second inflating medium layer (5)；The first inflating medium layer (4)
For hollow structure, the second inflating medium layer (5) is nested interior with the first inflating medium layer (4), also, the first inflating medium layer
(4) gap (6) are formed between the second inflating medium layer (5).
2. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
Stating structural unit (2) is L-shaped structure.
3. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
Stating structural unit (2) is U-shaped structure.
4. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
Stating structural unit (2) is T-shaped structure.
5. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
It is different from the thickness of the second inflating medium layer (5) to state the first inflating medium layer (4).
6. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as claimed in claim 5, it is characterised in that: institute
The thickness difference for stating the first inflating medium layer (4) and the second inflating medium layer (5) is 40nm.
7. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
Substrate layer (1) is stated to be made of silica.
8. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
The width for stating into gap (6) is 4nm~40nm.
9. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that: institute
The period for stating structural unit (2) arrangement is 100nm~300nm.
10. a kind of adjustable structure of circular dichroism based on metal micro-nanostructure as described in claim 1, it is characterised in that:
The period of structural unit (2) arrangement is 200nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910627435.1A CN110286504A (en) | 2019-07-30 | 2019-07-30 | A kind of adjustable structure of circular dichroism based on metal micro-nanostructure |
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| CN201910627435.1A CN110286504A (en) | 2019-07-30 | 2019-07-30 | A kind of adjustable structure of circular dichroism based on metal micro-nanostructure |
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| CN110286504A true CN110286504A (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907057A (en) * | 2019-12-05 | 2020-03-24 | 西安柯莱特信息科技有限公司 | Sensor with adjustable circular dichroism absorption |
-
2019
- 2019-07-30 CN CN201910627435.1A patent/CN110286504A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907057A (en) * | 2019-12-05 | 2020-03-24 | 西安柯莱特信息科技有限公司 | Sensor with adjustable circular dichroism absorption |
| CN110907057B (en) * | 2019-12-05 | 2021-08-24 | 杭州翔毅科技有限公司 | Sensor with adjustable circular dichroism absorption |
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Application publication date: 20190927 |
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