A transformation-optics-inspired route to sensor invisibility based on cloak/anti-cloak interactions

In this paper, we introduce and explore a transformation-optics-based approach to “cloaking” an electromagnetic sensor, i.e., strongly reducing its visibility while maintaining its field-sensing capabilities. The proposed approach relies on a judicious tailoring of the interactions between the competing effects of invisibility cloaking and “anti-cloaking,” and constitutes an attractive alternative to other approaches (e.g., scattering cancellation, or Fano-resonance-based) recently proposed in the literature.