Extreme Nonreciprocal Near-Field Thermal Radiation via Floquet Photonics

By using Floquet driving protocols and interlacing them with a judicious reservoir emission engineering, we achieve extreme nonreciprocal thermal radiation. We show that the latter is rooted in an interplay between a direct radiation process occurring due to temperature bias between two thermal baths and the modulation process that is responsible for pumped radiation heal Our theoretical results are confirmed via time-domain simulations with photonic and rf circuits.

Automated summary

By utilizing Floquet driving protocols and carefully engineered reservoir emission, extreme nonreciprocal thermal radiation is achieved. The nonreciprocity arises from the interaction between direct radiation due to temperature bias and modulation process responsible for pumped radiation heal. The theoretical results are confirmed through time-domain simulations with photonic and rf circuits.