Patent ID: 7301493

Claim:
A one-way reflective sensor shield, comprising: a meta-material coating is deposited on a surface of said sensor; a periodic grating array is deposited on said surface; said array further comprising a pair of conductive corrugated strips separated by a gap; said meta-material coating being composed of a dielectric material; said array providing an imaginary non-symmetrical plane parallel to said surface extending from a one of said corrugated strips to another of said corrugated strips; said sensor having a multitude of said periodic grating arrays; said meta-material coating having a plurality of enhancement regions that generate a surface plasmonic coupling whenever said sensor is exposed to a beam of electromagnetic radiation based upon said meta-material coating having a positive dielectric constant and said corrugated strips having a negative dielectric constant; and said surface plasmonic coupling enhances a plurality of incident electromagnetic fields and controls a transmission coefficient of said incident electromagnetic fields to prevent said incident electromagnetic fields from propagating away from sensor allowing said sensor to be concealed and remain undetected.