CN1527100A - Setting method and device for continuously gradual periodical wide band omnibearing all-medium reflector - Google Patents
Setting method and device for continuously gradual periodical wide band omnibearing all-medium reflector Download PDFInfo
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- CN1527100A CN1527100A CNA031583083A CN03158308A CN1527100A CN 1527100 A CN1527100 A CN 1527100A CN A031583083 A CNA031583083 A CN A031583083A CN 03158308 A CN03158308 A CN 03158308A CN 1527100 A CN1527100 A CN 1527100A
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- reverberator
- cycle
- continuous gradation
- full medium
- wideband omnidirectional
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Abstract
The present invention is the setting method and device of continuously gradual periodical wide-band omnibearing all-medium reflector. On transparent material substrate, two kinds of optical dielectric material of different refractive indexes are covered periodically in the periodical gradual change amount of 0.005-0.03 and period number of 10-200. The structure features that common dielectric material combination, such as TiO2/SiO2, is used to develop wide-band omnibearing reflector for visible light and infrared band application. This kind of device can ensure p component and s component of light wave in all incident angles and reflective rate near 100 % in relatively wide frequency range. The present invention has attractive application foreground in optical device and light communication field.
Description
One, technical field
The invention belongs to new material and new technical field, relate generally to the local effect that utilizes photon spread in the new one-dimensional dielectric microstructure, relate to the method to set up and the device of full bandgap structure of one dimension photon and the lossless wideband omnidirectional reflection device of full medium of continuous gradation cycle.
Two, background technology
In technical fields such as the integrated photonic device in future and optical communications, photonic bandgap material and structure (photonic crystal) will occupy important status, and it is a kind of restriction and the artificial fine structure material of the specific inductive capacity periodic distribution of conduction photon.Though one dimension photonic bandgap material wherein has been used widely at microelectronics such as semiconductor laser and optoelectronic areas at present, but because the finiteness in its structure space cycle and the influence of Brewster effect, there is not omnidirectional's energy gap in this structure, and then has limited its range of application.Although existing at present two kinds of methods have partly solved this problem, as increase two kinds of dielectric materials specific inductive capacity ratio or to increase other periodic structure be so-called photon heterojunction structure, to reduce the influence of Brewster effect, realization has omnidirectional's reflection of certain band gap, but these methods all have certain limitation, as the selectivity work that has improved material has increased the complicacy of structure, and band gap width is limited, simultaneously aspect preparation technology, also improved difficulty, not too compatible with present microelectronics photoelectron preparation technology.
Three, summary of the invention
The present invention adopts a kind of one dimension dielectric microstructure design thought of novelty, promptly utilize the continuous gradation periodic structure, be actually the local effect of a kind of aperiodic structure to photon, thoroughly eliminated the influence of Brewster effect, design a kind of novel full bandgap structure of one dimension photon, and by using conventional dielectric material, regulate the gradual period that two media constitute, be implemented in omnidirectional's reflection that visible light and infrared frequency range have broad-band gap, thereby can utilize two kinds of conventional dielectric materials designs according to this physical principle, and prepare and have the omni-directional reflector spare that the broad reflective band can be applicable to visible light and infrared different frequency range.
The objective of the invention is: utilize above-mentioned thought to design a kind of novel full bandgap structure of one dimension photon, adopt conventional dielectric optical material (as TiO
2, SiO
2Deng) and the conventional one dimension cycle preparation technology, thereby design and preparation are applied to the lossless full medium wideband omnidirectional reflection device of visible light and infrared frequency range.
Technical solution of the present invention is: the method to set up of continuous gradation cycle full medium wideband omnidirectional reverberator, utilize the transparent material substrate, and adopt conventional dielectric optical material (as TiO
2, SiO
2Deng), select two kinds of different dielectric optical material cycles of refractive index to cover, the formation of phase dielectric optical material layer is one deck high index of refraction and one deck low-refraction dielectric material weekly, choosing cycle gradual change amount is 0.005-0.03, periodicity is 10-200, as 50,60,70,99, refractive index has the dielectric optical material of notable difference, as TiO
2And SiO
2, two kinds of gradual period materials also can adopt ZrO
2/ SiO
2, ZrO
2/ Al
2O
3, ZnS/MgF
2Deng the design of the dielectric material combination with high low-refraction with adjusting total reflection bandwidth.Cycle gradual change amount is the ratio of optical thickness difference and ground floor dielectric material between the adjacent two layers dielectric material (or claiming medium) optical thickness.Typical transparent material is as quartz, glass and high polymer material.Periodicity selects between the 20-100 better.
Every layer of dielectric material optical thickness of the present invention need not be special agreement, generally, both be convenient to Growth Control in the scope of ten to 200 nanometers, can reach purpose of the present invention again.Commonly used is 10 to 50 nanometers.
Continuous gradation cycle of the present invention full medium wideband omnidirectional reverberator is exactly the device that is provided with said method.
The present invention utilizes high vacuum electron beam evaporation and resistance heat evaporation or sputtering method, and growing and preparing is applied to the device that visible light frequency band has adjusting total reflection bandwidth on the transparent material substrate.
Characteristics of the present invention are: can adopt various combinations, different cycles to count dielectric optical material, one dimension continuous gradation cycle dielectric microstructure as shown in Figure 1, then according to different application bands, design is applied to visible light and near-infrared region or ultraviolet region, has the full bandgap structure omni-directional reflector of one dimension photon of broad-band gap.Regulate gradual period and cycle gradual change amount, can obtain omnidirectional's reflectance spectrum of different bandwidth.
Four, description of drawings
The structural representation of the full bandgap structure of new one-dimensional photon that Fig. 1 designs for the present invention and the complete lossless wideband omnidirectional reflection device of medium.Substrate 1, TE, TM are along two of light ray propagation vertical direction of vibration among Fig. 1, and 2 is periodical media material, wherein d
H, d
L, n
H, n
LBe respectively the width and the refractive index of periodical media material (one deck high index of refraction and one deck low-refraction) dielectric material.
Fig. 2 is at visible region, the variation synoptic diagram that the bandgap structure of the continuous gradation cycle full medium wideband omnidirectional reverberator of same period gradual change amount changes along with the different cycles number, wherein cycle gradual change amount Δ=0.01.(a) and (b), (c) and (d) corresponding respectively periodicity be that the bandgap structure of 30,44,52,60 full medium wideband omnidirectional reverberator changes synoptic diagram, dash area is a band gap among the figure.
Fig. 3 is at visible region, the variation synoptic diagram that the bandgap structure of the continuous gradation cycle full medium wideband omnidirectional reverberator of same period number changes along with different cycles gradual change amount, and wherein periodicity is 60.(a) and (b), (c) and (d) corresponding respectively cycle gradual change amount be 0.005,0.01,0.015 and 0.02, dash area is a band gap among the figure.
Fig. 4 is under different incidence angles, and continuous gradation cycle full medium wideband omnidirectional reverberator is in the reflectance spectrum of visible region, and wherein periodicity is 60, and cycle gradual change amount is 0.01.(a) and (b), (c) and (d) the reflectance spectrum curve of the full medium wideband omnidirectional reverberator when corresponding respectively incident angle is 0 °, 30 °, 60 ° and 89 °, dash area is a high reflectance zone among the figure.
Fig. 5 is in the near-infrared region, the variation synoptic diagram that the bandgap structure of the continuous gradation cycle full medium wideband omnidirectional reverberator of identical cycle gradual change amount changes along with the different cycles number, wherein cycle gradual change amount Δ=0.005.(a) and (b), (c) and (d) corresponding respectively periodicity be that the bandgap structure of 50,60,70 and 99 full medium wideband omnidirectional reverberator changes synoptic diagram, dash area is a band gap among the figure.
Fig. 6 is under different incidence angles, and continuous gradation cycle full medium wideband omnidirectional reverberator is in the reflectance spectrum of near-infrared region, and wherein periodicity is 99, and cycle gradual change amount is 0.005.(a) and (b), (c) and (d) the reflectance spectrum curve of the full medium wideband omnidirectional reverberator when to correspond respectively to incident angle be 0 °, 30 °, 60 ° and 89 °, dash area is a high reflectance zone among the figure.
Five, embodiment
The present invention is described further below in conjunction with accompanying drawing and by concrete embodiment:
The structural representation of the full bandgap structure of new one-dimensional photon that Fig. 1 designs for the present invention and the complete lossless wideband omnidirectional reflection device of medium.
Shown in Figure 2, at visible region, the bandgap structure of the continuous gradation cycle full medium wideband omnidirectional reverberator of same period gradual change amount changes and changes along with the different cycles number, and as shown in Figure 2, the band gap width of this reverberator is that increase along with periodicity constantly then increases at visible region.Corresponding band gap width is respectively and is total to 38.6nm from 522.8nm to 561.4nm, is total to 102.9nm from 522.5nm to 625.4nm, is total to 142.5nm and is total to 181nm from 519.5nm to 662nm from 520nm to 701nm.
As shown in Figure 3, the band gap width of this reverberator is continuous increase along with the increase of cycle gradual change amount at visible region, and corresponding band gap width is total to 76nm respectively, is total to 181nm from 520nm to 701nm, is total to 281.nm and is total to 392nm from 537.5nm to 819nm from 548nm to 940nm from 506.8nm to 582.8nm.
As shown in Figure 5, the band gap width of this reverberator constantly increases along with the increase of periodicity equally in the near-infrared region.From 1427nm to 1556.5nm, be total to 129.5nm, from 1433nm to 1621nm, be total to 188nm, from 1435nm to 1685nm, be total to 250nm and from 1429nm to 1871m, be total to 442nm.
It is TiO that the present invention selects high refractive index medium
2(at visible region n
H=2.300, at near-infrared region n
H=2.250), low refractive index dielectric is SiO
2(at visible region n
L=1.460, at near-infrared region n
L=1.446).
As mentioned above, continue to increase the not more raising of essence of periodicity performance, certainly, can also get the cycle more than 200, technology is more numerous, but does not exceed scope of the present invention.And the combination of dielectric materials layer is chosen also and can be adopted ZrO
2/ SiO
2, ZrO
2/ Al
2O
3, ZnS/MgF
2To regulate the design of total reflection bandwidth.Principle and result in the scope of the foregoing description, have identical variation tendency substantially.
Realize that production method of the present invention is conventional method, utilize high vacuum electron beam evaporation and resistance heat evaporation or sputtering method, evaporation source is TiO
2, ZrO
2, SiO
2, ZrO
2, Al
2O
3, ZnS, MgF
2Deng, the scope of glass or transparent material is very extensive, as quartzy, glass and optical glass, on quartz substrate growing and preparing better, can control the position and the thickness of dielectric material film, dielectric layer position and thickness are method commonly used, decide structure according to designing requirement.Also available superpolymer transparent material (as polystyrene, polycarbonate, PMMA etc.), but take the mode of room temperature evaporation on the technology, as the technology of ion gun assisted evaporative, this is common process.These all do not exceed scope of the present invention.
Claims (10)
1. the method to set up of continuous gradation cycle full medium wideband omnidirectional reverberator, it is characterized in that utilizing the transparent material substrate, select two kinds of different dielectric optical material cycles of refractive index to cover, the formation of phase dielectric optical material layer is one deck high index of refraction and one deck low-refraction dielectric material weekly, choosing cycle gradual change amount is 0.005-0.03, and periodicity is 10-200.
2. by the method to set up of the described continuous gradation of claim 1 cycle full medium wideband omnidirectional reverberator, it is characterized in that periodicity selects 20-100.
3. by the method to set up of claim 1 or 2 described continuous gradation cycles full medium wideband omnidirectional reverberator, it is characterized in that the different dielectric optical material of refractive index is TiO
2/ SiO
2, ZrO
2/ SiO
2, ZrO
2/ Al
2O
3Or ZnS/MgF
2Dielectric material combination with high low-refraction.
4. by the method to set up of claim 1 or 2 described continuous gradation cycles full medium wideband omnidirectional reverberator, it is characterized in that choosing the cycle to fade to 0.01-0.02.
5. by the method to set up of claim 1 or 2 described continuous gradation cycles full medium wideband omnidirectional reverberator, it is characterized in that the transparent material substrate is quartz, glass, optical glass or superpolymer transparent material.
6. continuous gradation cycle full medium wideband omnidirectional reverberator, it is characterized in that utilizing the transparent material substrate, select two kinds of different dielectric optical material cycles of refractive index to cover, the formation of phase dielectric optical material layer is one deck high index of refraction and one deck low-refraction dielectric material weekly, choosing cycle gradual change amount is 0.005-0.03, and periodicity is 10-200.
7. by the described continuous gradation of claim 6 cycle full medium wideband omnidirectional reverberator, it is characterized in that periodicity selects 20-100.
8. by claim 6 or 7 described continuous gradation cycles full medium wideband omnidirectional reverberator, it is characterized in that the different dielectric optical material of refractive index is TiO
2/ SiO
2, ZrO
2/ SiO
2, ZrO
2/ Al
2O
3Or ZnS/MgF
2Dielectric material combination with high low-refraction.
9. by claim 6 or 7 described continuous gradation cycles full medium wideband omnidirectional reverberator, it is characterized in that choosing the cycle to fade to 0.01-0.02.
10,, it is characterized in that the transparent material substrate is quartz, glass, optical glass or superpolymer transparent material by claim 6 or 7 described continuous gradation cycles full medium wideband omnidirectional reverberator.
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|---|---|---|---|
| CN 03158308 CN1215354C (en) | 2003-09-24 | 2003-09-24 | Setting method and device for continuously gradual periodical wide band omnibearing all-medium reflector |
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| CN 03158308 CN1215354C (en) | 2003-09-24 | 2003-09-24 | Setting method and device for continuously gradual periodical wide band omnibearing all-medium reflector |
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| CN1215354C CN1215354C (en) | 2005-08-17 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909256B (en) * | 2005-08-03 | 2012-10-03 | 三星Led株式会社 | Omni-directional reflector and light emitting diode adopting the same |
| US8323391B2 (en) | 2007-08-12 | 2012-12-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional structural color paint |
| CN104553221A (en) * | 2015-01-20 | 2015-04-29 | 浙江大学 | High-performance spectral selectivity wave-absorbing element and solar heat photovoltaic system |
| US9063291B2 (en) | 2007-08-12 | 2015-06-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional reflector |
| US9229140B2 (en) | 2007-08-12 | 2016-01-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional UV-IR reflector |
| US9612369B2 (en) | 2007-08-12 | 2017-04-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US9658375B2 (en) | 2012-08-10 | 2017-05-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination metal absorber and dielectric absorber layers |
| US9664832B2 (en) | 2012-08-10 | 2017-05-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination semiconductor absorber and dielectric absorber layers |
| US9678260B2 (en) | 2012-08-10 | 2017-06-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with semiconductor absorber layer |
| US9739917B2 (en) | 2007-08-12 | 2017-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| CN107092046A (en) * | 2017-04-26 | 2017-08-25 | 上海默奥光学薄膜器件有限公司 | A kind of high reflective mirror of wide spectrum |
| US9810824B2 (en) | 2015-01-28 | 2017-11-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural colors |
| US10048415B2 (en) | 2007-08-12 | 2018-08-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-dichroic omnidirectional structural color |
| US10690823B2 (en) | 2007-08-12 | 2020-06-23 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| US10788608B2 (en) | 2007-08-12 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures |
| US10870740B2 (en) | 2007-08-12 | 2020-12-22 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures and protective coatings thereon |
| CN112904545A (en) * | 2021-01-14 | 2021-06-04 | 合肥工业大学 | Secondary condenser based on one-dimensional photonic crystal omnidirectional reflector |
| US11726239B2 (en) | 2014-04-01 | 2023-08-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-color shifting multilayer structures |
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2003
- 2003-09-24 CN CN 03158308 patent/CN1215354C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1909256B (en) * | 2005-08-03 | 2012-10-03 | 三星Led株式会社 | Omni-directional reflector and light emitting diode adopting the same |
| US10048415B2 (en) | 2007-08-12 | 2018-08-14 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-dichroic omnidirectional structural color |
| US10788608B2 (en) | 2007-08-12 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures |
| US9739917B2 (en) | 2007-08-12 | 2017-08-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US10870740B2 (en) | 2007-08-12 | 2020-12-22 | Toyota Jidosha Kabushiki Kaisha | Non-color shifting multilayer structures and protective coatings thereon |
| US9612369B2 (en) | 2007-08-12 | 2017-04-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Red omnidirectional structural color made from metal and dielectric layers |
| US10690823B2 (en) | 2007-08-12 | 2020-06-23 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| US8323391B2 (en) | 2007-08-12 | 2012-12-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional structural color paint |
| US9229140B2 (en) | 2007-08-12 | 2016-01-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional UV-IR reflector |
| US11796724B2 (en) | 2007-08-12 | 2023-10-24 | Toyota Motor Corporation | Omnidirectional structural color made from metal and dielectric layers |
| US9063291B2 (en) | 2007-08-12 | 2015-06-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional reflector |
| US9678260B2 (en) | 2012-08-10 | 2017-06-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with semiconductor absorber layer |
| US9664832B2 (en) | 2012-08-10 | 2017-05-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination semiconductor absorber and dielectric absorber layers |
| US9658375B2 (en) | 2012-08-10 | 2017-05-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural color with combination metal absorber and dielectric absorber layers |
| US11726239B2 (en) | 2014-04-01 | 2023-08-15 | Toyota Motor Engineering & Manufacturing North America, Inc. | Non-color shifting multilayer structures |
| CN104553221A (en) * | 2015-01-20 | 2015-04-29 | 浙江大学 | High-performance spectral selectivity wave-absorbing element and solar heat photovoltaic system |
| US9810824B2 (en) | 2015-01-28 | 2017-11-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Omnidirectional high chroma red structural colors |
| CN107092046A (en) * | 2017-04-26 | 2017-08-25 | 上海默奥光学薄膜器件有限公司 | A kind of high reflective mirror of wide spectrum |
| CN112904545A (en) * | 2021-01-14 | 2021-06-04 | 合肥工业大学 | Secondary condenser based on one-dimensional photonic crystal omnidirectional reflector |
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