What is metamaterial used for?

Metamaterials are composite media that can be engineered to exhibit unique electromagnetic properties. Made up from subwavelength building blocks (most often based on metals), these metamaterials allow for extreme control over optical fields, enabling effects such as negative refraction to be realized.

What are examples of metamaterials?

Some examples of available metamaterials are negative index metamaterials, chiral metamaterials, plasmonic metamaterials, photonic metamaterials, etc.

What is Metaphotonics?

Metaphotonics represents the study of new optical behaviors beyond conventional optical properties by developing a new space, constructed with various artificial nanostructures. “Meta,” from Greek, means “beyond” and in the context of metaphotonics refers to artificial properties that do not exist naturally.

What are the properties of metamaterial?

Properties of metamaterials

• Invisibility. Due to their peculiar optical capabilities (wavelength shorter than visible light), metamaterials can be invisible.
• Acoustic control.
• Negative electrical permittivity and magnetic permeability.

Are there any optical applications for metamaterials?

Although the image resolution can be improved using metamaterials, perfect is a bit of an overstatement. There have been some issues producing sharp images especially in the infrared range with thermal imaging due to the typically metallic, and thus conductive, nature of metamaterials.

What is the coupling range of optical metamaterials?

This metamaterial shows remarkable coupling to fiber guided modes (3.5dB) and a photoswitchable tuning range of more than 1.8dB. The design offers extremely small footprint (~10 wavelengths) and complete elimination of bulk optical components to realize low-cost, potential high-speed optical switching and modulation.

How are metamaterials used in the antenna industry?

By using Metamaterial in antenna we can increase bandwidth, reduce antenna size and increase in radiator efficiency.

What kind of materials are used in metamaterials?

Such metals include silver and titanium dioxide though researchers at Duke have fabricated a metal-free metamaterial from boron-doped silicon. The component materials, irrespective if they are metallic, are smaller than the wavelength the metamaterial component will be subjected to.