http://www.rdmag.com/news/2014/01/research-lays-out-theory-metamaterial-acts-analog-computer
A study by researchers at the Univ. of Pennsylvania, the Univ. of Texas at Austin and Univ. of Sannio in Italy, shows that metamaterials can be designed to do photonic calculus as a light wave goes through them.
A light wave, when described in terms of space and time, has a profile in space that can be thought of as a curve on a Cartesian plane. The researchers’ theoretical material can perform a specific mathematical operation on that wave’s profile, such as finding its first or second derivative, as the light wave passes through the material.
A study by researchers at the Univ. of Pennsylvania, the Univ. of Texas at Austin and Univ. of Sannio in Italy, shows that metamaterials can be designed to do photonic calculus as a light wave goes through them.
A light wave, when described in terms of space and time, has a profile in space that can be thought of as a curve on a Cartesian plane. The researchers’ theoretical material can perform a specific mathematical operation on that wave’s profile, such as finding its first or second derivative, as the light wave passes through the material.
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