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Method for generating solid modulating plasma photonic crystals with four refractive indexes

A plasma and photonic crystal technology, applied in the field of plasma application technology and optics, to achieve a wide range of application prospects and application fields, with a wide range of effects

Inactive Publication Date: 2017-05-31
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patented technology has not achieved the use of solid-state modulation to generate plasmonic photonic crystals

Method used

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  • Method for generating solid modulating plasma photonic crystals with four refractive indexes
  • Method for generating solid modulating plasma photonic crystals with four refractive indexes
  • Method for generating solid modulating plasma photonic crystals with four refractive indexes

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1, the device used to produce a solid-modulated plasmonic photonic crystal with four refractive indices.

[0026] Such as figure 1 As shown, the device used in the present invention is specifically: two airtight dielectric containers are symmetrically arranged in a horizontal cylindrical vacuum reaction chamber 1, and water is injected into the airtight dielectric container to form two opposite water electrodes. 2. The two water electrodes 2 are electrically connected with the plasma generating power source 5 outside the vacuum reaction chamber 1 . In this embodiment, the water electrode 2 is made of a plexiglass tube sealed by glass baffles 3 at both ends, the plexiglass tube is filled with water, and a copper ring 4 is set in the plexiglass tube. The two copper rings 4 are respectively electrically connected to the positive pole and the negative pole of the plasma generation power supply 5 through power lines. The thickness of the glass block 3 is between 1...

Embodiment 2

[0033] combine figure 1 with figure 2 , a vacuum reaction chamber 1 is set, an air inlet 7 and an air outlet 8 are provided on the wall body of the vacuum reaction chamber 1, and an argon gas bottle ( figure 1 not shown). Two water electrodes 2 opposite to each other are installed in the vacuum reaction chamber 1 . The water electrode 2 is composed of a plexiglass tube sealed with glass baffles 3 on both sides and filled with water, and a built-in copper ring 4 is electrically connected to the plasma generating power supply 5 outside the vacuum reaction chamber 1 .

[0034] A solid frame 6 with a thickness of 2mm is arranged between the two water electrodes 2, the solid frame 6 is an acrylic plate, the plane where it is located is perpendicular to the axes of the two water electrodes 2, and the two sides are close to the two water electrodes 2 end face. Nine square through holes 6 - 1 with equal size and side length of 8 mm are opened in the inner area of ​​the solid fram...

Embodiment 3

[0038] Compared with Example 2, this example differs in that: discharge gas pressure P=0.35atm, voltage amplitude U=2.00kV, discharge frequency f=55kHz, argon volume content φ=20%.

[0039] see Figure 4 , the photo of the plasma photonic crystal formed by solid (solid edge 6-2 with a width of 2mm), gas (that is, the gas in the second undischarged region 17) and plasma periodically arranged in this embodiment (common camera) such as Figure 4 (a), Figure 4 A partial schematic diagram of a cycle in (a) as Figure 4 (b) shown. Figure 4 The gas shown in (b) (that is, the gas in the second undischarged region 17), the third plasma 18, the solid edge 6-2, and the fourth plasma 19 have different refractive indices; wherein the second undischarged region 17 The refractive index of the gas is 1; the refractive index of the third plasma 18 and the fourth plasma 19 are both less than 1, and the refractive index of the third plasma 18 is slightly smaller than the refractive index o...

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Abstract

The invention provides a method for generating solid modulating plasma photonic crystals with four refractive indexes. The method comprises the following steps that two water electrodes are arranged in a vacuum reaction chamber, and the water electrodes are electrically connected with a plasma generation power source; a solid frame is arranged between the two water electrodes, a plurality of through holes arranged in a matrix mode are formed in the internal area of the solid frame, and every two adjacent through holes are separated through a solid ridge; mixed gas of air and argon is introduced into the vacuum reaction chamber to serve as discharge gas, and the gas pressure of the discharge gas is adjusted to range from 0.1 atm to 1 atm; a switch is switched on, and the solid modulating plasma photonic crystals with the four refractive indexes and with plasma, the gas and the solid ridges periodically arranged can be generated in discharge gaps. The solid modulating plasma photonic crystals with the four refractive indexes are generated for the first time, spreading of certain frequency light can be stopped, the function of a frequency selective photoswitch is achieved, and the method has wide application prospects in the field of industry.

Description

technical field [0001] The invention relates to the fields of plasma application technology and optical technology, in particular to a method for producing solid-modulated plasma photonic crystals with four refractive indices. Background technique [0002] Photonic crystals, also known as photonic bandgap materials, are an artificial "crystal" structure formed by arranging two dielectric materials with different dielectric constants in space at a certain period (the size is on the order of the wavelength of light). The dielectric constant of a photonic crystal is a periodic function of space. If the periodic modulation of photons by the dielectric coefficient is strong enough, the photon energy propagating in the photonic crystal will also have an energy band structure, and photon "forbidden" will appear between the bands. band", photons whose frequency falls in the forbidden band cannot propagate in the crystal. The position and shape of the photonic forbidden band depend ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/00H05H1/24
CPCG02B1/005H05H1/2406
Inventor 董丽芳郝芳杜天
Owner HEBEI UNIVERSITY
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