New metamaterial that refracts light in unusual way discovered
Q. A new metamaterial which can be used to speed up computers and devise invisibility cloaks is based on the phenomenon of _____________.- Published on 04 Jan 16a. Refraction
b. Reflection
c. Diffraction
d. Deflection
ANSWER: Diffraction
A new metamaterial that refracts light in unusual ways can be used for speeding up computers and creating invisibility cloaks. Scientists from Moscow Institute of Physics and Technology and Russian Academy of Sciences have proposed a 2-d metamaterial comprising silver elements which can be used to develop compact optical devices and create invisibility cloak. This will be a high performance material for light with wavelength from 4 to 500 nanometers. Metamaterial has properties created by artificial periodic structure. Principle of operation of the metasurface is based on the phenomenon of diffraction.
