A metamaterial is a material engineered to have a property that is not found in nature. They are made from assemblies of multiple elements fashioned from composite materials such as metals or plastics. The materials are usually arranged in repeating patterns, at scales that are smaller than the wavelengths of the . History_of_metamaterials Önbellek Benzer Bu sayfanın çevirisini yap The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II.

Yet, there are seminal explorations of artificial materials for manipulating electromagnetic waves at the end of the 19th century. Hence, the history of metamaterials is essentially a history of .

After another news story about a “Harry Potter invisibility cloak”, we take a look at the science behind metamaterials. Discover the technology behind metamaterials. Learn how we arrange conventional metals or plastics into periodic patterns to create smart materials. What Are Metamaterials ? We live in a world of waves.

A field of materials science known as metamaterials has recently captured the imagination of engineers hoping to create nanoscale optical devices. Jonathan Fan, an assistant professor of electrical engineering and director of the ExFab at the Stanford Nanofabrication Facility, is leading the way. The properties of metamaterials are derived both from the inherent properties of their constituent materials, as well as from the geometrical arrangement of those . Mechanical metamaterials , which exhibit unusual properties such as shape morphing and programmability, have been found to display further surprising features.

When the materials are a step in size larger, new rules seem to. Find out how metamaterials are developed and used. Read the latest articles of Metamaterials at ScienceDirect.

Metamaterial , an artificially structured material that exhibits extraordinary electromagnetic properties not available or not easily obtainable in nature. They usually comprise an array of structures smaller than the wavelength of interest. These so-called meta-atoms can interact with the electric and magnetic components of light in a way that natural atoms do not . Metamaterials , artificial electromagnetic media that are structured on the subwavelength scale, were initially suggested for the negative-index ‘superlens’. Metamaterials are engineered structures designed to interact with electromagnetic radiation in a desired fashion.

Later metamaterials became a paradigm for engineering electromagnetic space and controlling propagation of waves: the field of transformation optics . Recently, artificially constructed metamaterials have become of considerable interest, because these materials can exhibit electromagnetic characteristics unlike those of any conventional materials. Artificial magnetism and negative refractive index are two specific types of behavior that have been demonstrated . Accelerating innovation by leveraging metamaterials. Metamaterials (i.e., engineered electromagnetic structures), are poised to disrupt industries, create entirely new markets, and change society. The ability to design and fabricate materials with new functionalities opens the door to a new world of possibilities — it is now .