By arranging the nanoscale unit cells in a desired geometry, the refractive index of the metamaterial can be adjusted to positive, near-zero, or negative values. Among the most sought-after properties ...

Sir John Pendry’s lecture showed how engineered materials make sci-fi real, from invisibility cloaks to microscopes revealing ...

The creation of a negative refractive index — responsible for ... It now seems that manmade chiral metamaterials may provide an answer. Two separate research collaborations in the United States ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the need for artificially manufactured metamaterials. Scientists have long ...

There has been interest in the Negative Refraction Index (NRI) material at optical frequencies. There are two approaches to optical frequencies. 1)Volumetric structure: it is based on the spherical ...

High-surface-area materials such as porous carbon, polymers and metal–organic frameworks have high hydrogen storage capabilities at cryogenic temperature. The small hydrogen adsorption ...

Specific topics include sub-wavelength waveguiding and focusing, super-resolution imaging and nano-lithography beyond the diffraction limit of the light, negative refraction, and invisibility cloaking ...

One of the most striking properties of phoxonic metamaterials is their ability to exhibit negative refraction for both light and sound waves. By carefully designing the subwavelength structure of the ...

Electromagnetic metamaterials with negative physical ... Different from traditional electromagnetic materials, they exhibit negative refractive index, perfect imaging and super absorption, and ...

(Principal) Homogeneous Negative Refractive Index Materials with Parametric Loss Suppression (2012), - Akyurtlu, A. (Principal) Investigation of Frequency Selective Surfaces (2012), Grant - Raytheon ...