CN102928909A - Surface plasmon-based phase retarder - Google Patents
Surface plasmon-based phase retarder Download PDFInfo
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- CN102928909A CN102928909A CN2012104195688A CN201210419568A CN102928909A CN 102928909 A CN102928909 A CN 102928909A CN 2012104195688 A CN2012104195688 A CN 2012104195688A CN 201210419568 A CN201210419568 A CN 201210419568A CN 102928909 A CN102928909 A CN 102928909A
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Abstract
The invention discloses a surface plasmon-based phase retarder which is used for solving the problems that conventional inventions and researches about optical phase modulators are mostly based on traditional optical devices such as birefringent crystal and liquid crystal and the designs are only suitable for larger-scale optical devices and not beneficial to the integration. According to the invention, the surface plasmon characteristic of metal is utilized; the phase retarder is reduced to nanometer magnitude; and the phase delay of light with specific wavelengths can be effectively realized through changing the size structure of nanoparticle. The structure can be applied to various optical detection precise instruments.
Description
Technical field
The invention belongs to field of photoelectric technology, relate to a kind of noble metal nano structure, specifically a kind of phase delay device based on surface phasmon.
Background technology
In the optical element field, phase delay device can produce the additional optical path difference to the light of particular polarization.Modal phase delay device is wave plate.The ultimate principle of wave plate utilization is the birefringence of material, and namely the refractive index for light is different in different directions for material.Wherein the half-wave wave plate can change the polarization direction of linearly polarized light, and quarter-wave plate can change linearly polarized light into circularly polarized light.In addition, the liquid crystal phase-modulator can realize that adjustable phase place changes.These a series of primary elements have been widely used in the various optical precision instruments, are used for the fields such as spectrum, optical detection.
Find through the literature search for traditional optical phase modulator, minimum phase delay wave plate is the thinnest dimensionally can to reach the hundreds of micron.And being accompanied by the progress at full speed of integrated optics and modern precision processing technology, also thereupon constantly miniaturization of the yardstick of integrated optical device on the sheet reaches nanoscale.On this magnitude, because the restriction of the birefringent characteristic of material own and refractive index size, above-mentioned relevant design concept no longer can realize, therefore also can not produce at present effective nanoscale phase delay element.
Summary of the invention
The objective of the invention is the deficiency for above-mentioned existing conception and technology, utilize the optical characteristics of metal Nano structure, proposed a kind of phase delay device based on surface phasmon.
The technical scheme that the present invention solves its technical matters employing is as follows:
The present invention includes transparent substrates and metal nanoparticle.
Described transparent substrates is mainly used in the support metal nano particle, adopts the optical glass of isotropy and low dispersion, incident light is not played modulating action.
Described metal nanoparticle plays main modulating action for incident light, and the shape of metal nanoparticle can be multiple, comprises plate-like, sphere, bar-shaped, triangle; Per three metal nanoparticles are one group, and every group of metal nanoparticle be shaped as the wherein a kind of or unitized construction that consists of of several structures wherein, back gauge between every group of metal nanoparticle is greater than 100 nanometers, and organizes metal nanoparticle more and be cyclic array and distribute.Usually metal Nano structure is designed to dish configuration, considers from integrated optics and processing technology aspect, and dish configuration can be passed through mask, etching, and evaporation or sputter realize.
Described metal nanoparticle is of a size of the sub-wavelength level, and it is of a size of: diameter 50 nanometers, thickness 10 nanometers, limit spacing 15 nanometers of particle and particle in every group of metal nanoparticle.The size of metal nanoparticle and structure major effect be size for the phase place of the incident beam modulated.
The beneficial effect that the present invention has is:
The present invention utilizes the optical characteristics of metal nanoparticle, compares existing element volume and greatly dwindles (thickness tens nanometers are to the hundreds of nanometer), can finish at material interface the modulation of phase place, can think a kind of two-dimensional phase delayer.It is integrated that such structure is easy to extensive optics, can be used as the critical elements of optical detecting instrument.
Description of drawings
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the cell schematics of every group of metal nanoparticle of the present invention;
Fig. 3 is phase delay spectrum of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated: the present embodiment case take the present invention propose based on the phase delay device of surface phasmon as prerequisite, but protection scope of the present invention is not limited to following embodiment and case.
As shown in Figure 1, a kind of phase delay device based on surface phasmon comprises transparent substrates 1 and metal nanoparticle.
Described transparent substrates is mainly used in the support metal nano particle, adopts the optical glass of isotropy and low dispersion, incident light is not played modulating action.
Described metal nanoparticle plays main modulating action for incident light, and the shape of metal nanoparticle can be multiple, comprises plate-like, sphere, bar-shaped, triangle; Per three metal nanoparticles are one group, and every group of metal nanoparticle be shaped as the wherein a kind of or unitized construction that consists of of several structures wherein, back gauge between every group of metal nanoparticle is greater than 100 nanometers, and organizes metal nanoparticle more and be cyclic array and distribute.In the drawings, metal Nano structure is designed to dish configuration.Consider from integrated optics and processing technology aspect, dish configuration can be passed through mask, etching, and evaporation or sputter realize.
As shown in Figure 2, in each group metal nanoparticle, metal nanoparticle is shaped as plate-like, and material is Jin Heyin, and bi-material all has stronger plasma resonance effect at visible waveband.By the coupling effect of bi-material particle, can form the window that phase place is modulated at spectrum, realize specific phase delay function.By replacing the material of metal nanoparticle, also optionally carry out phase-modulation for the light of certain wavelength coverage.Metal nanoparticle shown in Fig. 2 is of a size of: diameter 50 nanometers, thickness 10 nanometers, limit spacing 15 nanometers of particle and particle in every group of metal nanoparticle.The size of metal nanoparticle and structure major effect be size for the phase place of the incident beam modulated, designed structure can realize two phase differential that polarization causes to quadrature for target wavelength among the figure.And the metal nanoparticle 2-2 material in the middle of among the figure is gold, and the metal nanoparticle 2-2 material on both sides is silver.Polarized light component 3, polarized light component 4 are mutually orthogonal, and incide on the metal nanoparticle, then plasma resonance occur with metal nanoparticle doing the time spent, and polarized light component 3, polarized light component 4 are produced different phase delay.
The Phase Modulation Properties under a kind of ad hoc structure size as shown in Figure 3.The shortwave scope (＜500nm), this structure is substantially for optical transparency.At long-wave limit (590-650nm), nanostructured reaches for the phase delay of incident light
, and form one than the window in broadband, and can realize the function of traditional quarter-wave plate, linearly polarized light and circularly polarized light can be changed mutually.Described metal nanoparticle is of a size of the sub-wavelength level.
The phase delay function of phase delay device is determined by the metal Nano structure on the substrate.In concrete the use, can make required structure according to demand.Wherein adjustable parameter has: the shape of nano particle, quantity, size, material, spacing etc.Thereby phase place extent, the window's position, window width change thereupon.So just realized the phase delay device based on surface phasmon.
Claims (1)
1. the phase delay device based on surface phasmon comprises transparent substrates and metal nanoparticle; It is characterized in that:
Described transparent substrates is mainly used in the support metal nano particle, adopts the optical glass of isotropy and low dispersion;
Described metal nanoparticle plays main modulating action for incident light, and the shape of metal nanoparticle can be multiple, comprises plate-like, sphere, bar-shaped, triangle; Per three metal nanoparticles are one group, and every group of metal nanoparticle be shaped as the wherein a kind of or unitized construction that consists of of several structures wherein, back gauge between every group of metal nanoparticle is greater than 100 nanometers, and organizes metal nanoparticle more and be cyclic array and distribute;
Described metal nanoparticle is of a size of the sub-wavelength level, and it is of a size of: diameter 50 nanometers, thickness 10 nanometers, limit spacing 15 nanometers of particle and particle in every group of metal nanoparticle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210419568.8A CN102928909B (en) | 2012-10-29 | 2012-10-29 | A kind of phase delay device based on surface phasmon |
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| CN201210419568.8A CN102928909B (en) | 2012-10-29 | 2012-10-29 | A kind of phase delay device based on surface phasmon |
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| CN102928909A true CN102928909A (en) | 2013-02-13 |
| CN102928909B CN102928909B (en) | 2015-10-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2535515A (en) * | 2015-02-19 | 2016-08-24 | Univ Birmingham | Metasurface for control of light propogation |
| CN107315204A (en) * | 2017-05-24 | 2017-11-03 | 深圳凌波近场科技有限公司 | Ultra-thin surfaces ripple photonic crystal |
| CN108845412A (en) * | 2018-08-27 | 2018-11-20 | 上海理工大学 | Phase-plate design method in compact phasecontrast microscope |
| CN111307067A (en) * | 2020-03-30 | 2020-06-19 | 深圳大学 | Optical measuring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173501A1 (en) * | 2002-03-14 | 2003-09-18 | Nec Research Institute, Inc. | Enhanced optical transmission apparatus with imporved aperture geometry |
| JP2004061870A (en) * | 2002-07-29 | 2004-02-26 | Kyocera Corp | Optical element and optical module using the same |
| US20060262398A1 (en) * | 2005-05-23 | 2006-11-23 | Suguru Sangu | Polarization control device |
| CN101792268A (en) * | 2009-12-31 | 2010-08-04 | 浙江大学 | Method for preparing metal/SiO2 composite granular film by oil-water interface self assembly method |
| CN102706835A (en) * | 2012-05-14 | 2012-10-03 | 中央民族大学 | Sensing chip of dual-detecting biochemical sensing detector and preparation method thereof |
| CN102747320A (en) * | 2012-07-31 | 2012-10-24 | 武汉大学 | Preparation method of noble metal nano-particle array |
-
2012
- 2012-10-29 CN CN201210419568.8A patent/CN102928909B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173501A1 (en) * | 2002-03-14 | 2003-09-18 | Nec Research Institute, Inc. | Enhanced optical transmission apparatus with imporved aperture geometry |
| JP2004061870A (en) * | 2002-07-29 | 2004-02-26 | Kyocera Corp | Optical element and optical module using the same |
| US20060262398A1 (en) * | 2005-05-23 | 2006-11-23 | Suguru Sangu | Polarization control device |
| CN101792268A (en) * | 2009-12-31 | 2010-08-04 | 浙江大学 | Method for preparing metal/SiO2 composite granular film by oil-water interface self assembly method |
| CN102706835A (en) * | 2012-05-14 | 2012-10-03 | 中央民族大学 | Sensing chip of dual-detecting biochemical sensing detector and preparation method thereof |
| CN102747320A (en) * | 2012-07-31 | 2012-10-24 | 武汉大学 | Preparation method of noble metal nano-particle array |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2535515A (en) * | 2015-02-19 | 2016-08-24 | Univ Birmingham | Metasurface for control of light propogation |
| CN107315204A (en) * | 2017-05-24 | 2017-11-03 | 深圳凌波近场科技有限公司 | Ultra-thin surfaces ripple photonic crystal |
| CN108845412A (en) * | 2018-08-27 | 2018-11-20 | 上海理工大学 | Phase-plate design method in compact phasecontrast microscope |
| CN108845412B (en) * | 2018-08-27 | 2020-07-17 | 上海理工大学 | Phase plate design method in compact phase contrast microscope |
| CN111307067A (en) * | 2020-03-30 | 2020-06-19 | 深圳大学 | Optical measuring system |
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| CN102928909B (en) | 2015-10-21 |
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