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metamaterials for remote generation of spatially controllable two dimensional array of microplasma

by:QY Precision      2019-09-05
Since the first demonstration of negative refraction and stealth using the super material, it has been based on the super material (such as electric small antenna, absorber, modulator) there has been great interest and progress in the manufacture of practical devices. detectors and other aspects of the magnetic spectrum cover microwave ovens, MHz, infraredIR)
And optical wavelength.
We use supermaterials as an active substrate, where each cell acts as an element that produces plasma, which is the fourth state of the substance. Sub-
Wavelength localization of wave energy is one of the most interesting properties of supermaterials for generating high electric fields to ignite and maintain micro-scale plasma.
The frequency selectivity of the super-material unit makes it possible to use multiple cavities to produce a space-specific microplasma in a large array.
A dual resonant cavity topology is shown in the demo.
Since microwave energy is coupled with hypermaterials through free space, the method is naturally wireless.
This space-controlled micro-plasma array provides a completely new material system for future research in new application fields, E. G. g.
Non-linear super material
The simulation software is used to design the super-material and patch antenna (
CST microwave Studio®).
Manufacturing an ultra-material plate on a dielectric substrate (
Rogers RO4003C, 0. 8u2005mm thickness)
By processing copper metal 17 microns thick (
CNC machine tool using LPKF Protomat)
A resonance is formed (
Super material unit). S-
Set the measurement parameters using the vector network analyzer.
For plasma generation experiments, place the device in a chamber, then evacuate the chamber to the basic pressure of 4 × 10 tortorr and fill again the ar gas up to the required pressure.
As shown in the figure, the ultra-material plate and antenna are placed in the face-to-face bracket (see ).
Send microwave power into the antenna from a solid state power amplifier.
In the case of applying high microwave power, plasma images are collected by means of UV-protected clear glass windows and additional metal mesh.
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