Computational Metamaterials

Optical signal processing of light waves can produce certain mathematical functions and perform computational tasks on signals or images in an analog fashion. However, the complex systems of lenses and filters required in conventional Fourier optics systems are generally bulky. We have shown that metamaterials can perform similar optical processing operations but with materials that need only be a wavelength thick. Our concept shows that compact metamaterial structures can be designed to perform a suite of mathematical functions, realizing ultrathin data processors, optical computers and even equation solving ‘on-the-fly’, as wave propagates through the metamaterial.

To learn more:

A. Silva*, F. Monticone*, G. Castaldi, V. Galdi, A. Alù, and N. Engheta, “Performing Mathematical Operations with Metamaterials,” Science, Vol. 343. No. 6167, pp. 160-163, January 10, 2014. (web)

A. Sihvola, “Enabling Optical Analog Computing with Metamaterials,” Science, Vol. 343, No. 6167, pp. 144-145, January 10, 2014.

“Researchers Lay Out Theory for Metamaterials that Act as an Analog Computer,” UT Austin Press Release, Phys.org, January 10, 2014.

J. Aoron, “First Light-Bending Calculator Designed with Metamaterials,” New Scientist, January 10, 2014.