Meta materials are the artificially engineered materials which have the properties that are not found in the nature. The structure of meta materials and not composition that define its properties. Electromagnetic meta materials are the type of meta materials which are designed to interact with and control electromagnetic waves. Electromagnetic waves can be any type of waves in the electromagnetic spectrum and they can have wavelengths of thousands of kilometers to trillionths of a meter.
When the electromagnetic waves enter the material, the electric and magnetic fields of the wave cause electrons within the material to move around. The materials are used to control and manipulate the light waves by means of exchange of electromagnetic energy with the atoms and molecules of a material and these are the basis for formation of electromagnetic devices.
The size and spacing of the atoms with in the material is dependent on the order of angstroms which means that visible light waves, which are hundreds of nanometers in size, or longer wavelength waves cannot even come close to resolving the atomic structure. One can't see the individual atoms because the light perceived is so much larger than the atomic scale although the materials are formed from the collection of the atoms. So it is possible to estimate the discrete atoms and molecules of a material as a continuous substance, and properties of these materials not only derived from the individual atoms and molecules but also derived from the interactions between them with in that material.
When the electromagnetic waves enter the material, the electric and magnetic fields of the wave cause electrons within the material to move around. The materials are used to control and manipulate the light waves by means of exchange of electromagnetic energy with the atoms and molecules of a material and these are the basis for formation of electromagnetic devices.
The size and spacing of the atoms with in the material is dependent on the order of angstroms which means that visible light waves, which are hundreds of nanometers in size, or longer wavelength waves cannot even come close to resolving the atomic structure. One can't see the individual atoms because the light perceived is so much larger than the atomic scale although the materials are formed from the collection of the atoms. So it is possible to estimate the discrete atoms and molecules of a material as a continuous substance, and properties of these materials not only derived from the individual atoms and molecules but also derived from the interactions between them with in that material.
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