Asymmetric Frequency Conversion and Violation of Kirchhoff's Law of Thermal Radiation in Phased Floquet Metasurfaces

Yao-Ting Wang, Emanuele Galiffi, Sander A. Mann +2

We study a system of three closely spaced conducting sheets, whose thermal emission largely violates Kirchhoff's law through nonreciprocal frequency conversion enabled by Floquet p…