Who first made metamaterials?

Who first made metamaterials?

V.G. Veselago
In 1967, V.G. Veselago from Moscow Institute of Physics and Technology considered the theoretical model of medium that known now as a metamaterial. However, physical experimentation did not occur until 33 years after the paper’s publication due to lack of available materials and lack of sufficient computing power.

What are the properties and characteristics of metamaterials?

The shape, geometry, size, orientation, and arrangement of surface structures on metamaterials are what give them their unique properties. Carefully designed, these physical features enable metamaterials to manipulate electromagnetic waves, for example by blocking, absorbing, enhancing, or bending them.

Why do we use metamaterial?

The use of metamaterials in antenna design not only dramatically reduces the size of the antenna but can also improve other antenna parameters such as enhancing bandwidth, increasing gain, or generating multiband frequencies of antennas operation.

What are the characteristics of metamaterials?

Apart from their artificial origin, metamaterials are characterized because they have unusual electromagnetic properties, coming from their structure and arrangement and not from their composition.

What are metamaterials and how do they work?

Metamaterials are a new class of functional materials, designed around unique patterns or structures, which cause them to interact with light and other forms of energy in ways not found in nature.

What is a left-handed metamaterial?

This is contrary to wave propagation in naturally occurring materials. In 2000, John Pendry was the first to identify a practical way to make a left-handed metamaterial, a material in which the right-hand rule is not followed. Such a material allows an electromagnetic wave to convey energy (have a group velocity) against its phase velocity.

What are elastic metamaterials?

These metamaterials use different parameters to achieve a negative index of refraction in materials that are not electromagnetic. Furthermore, “a new design for elastic metamaterials that can behave either as liquids or solids over a limited frequency range may enable new applications based on the control of acoustic, elastic and seismic waves .”

What are tunable metamaterials?

Tunable metamaterials allow arbitrary adjustments to frequency changes in the refractive index. A tunable metamaterial expands beyond the bandwidth limitations in left-handed materials by constructing various types of metamaterials.