Nanophotonic engineering provides an effective platform to manipulate thermal emission on-
demand, enabling unprecedented heat management superior to conventional bulk …

Controlling emission and absorption, and radiative heat transfer, is important for photonic
energy conversion and thermal management. However, the reciprocal emission and …

The study of magneto-optical absorption has stimulated diverse energy-technology-related
explorations, showing potential in breaking the current theoretical efficiency limits of energy …

Thermal emission—the process through which all objects with a finite temperature radiate
electromagnetic energy—has generally been thought to obey reciprocity, where the …

Nonreciprocal elements are a vital building block of electrical and optical systems. In the
infrared regime, there is a particular interest in structures that break reciprocity because their …

Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl
equation. They possess many unusual properties that may lead to new applications. This is …

Objects around us constantly emit and absorb thermal radiation. The emission and
absorption processes are governed by two fundamental radiative properties: emissivity and …

The Landsberg limit represents the ultimate efficiency limit of solar energy harvesting.
Reaching this limit requires the use of nonreciprocal elements. The existing device …

Singular behaviors are increasingly being found in structures supporting bound states in the
continuum (BICs), while the nonreciprocity with spectral phase singularity has not been …

The recent review stated that the existing designs of nonreciprocal thermal emitters are
typically operated at rather large incident angles, which imposes constraints on the angular …