Thermal photonics with broken symmetries

T Liu, C Guo, W Li, S Fan - ELight, 2022 - Springer
Nanophotonic engineering provides an effective platform to manipulate thermal emission on-
demand, enabling unprecedented heat management superior to conventional bulk …

Light control with Weyl semimetals

C Guo, VS Asadchy, B Zhao, S Fan - Elight, 2023 - Springer
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 …

Strong nonreciprocal thermal radiation by optical Tamm states in Weyl semimetallic photonic multilayers

M Luo, Y Xu, Y Xiao, G Yu - International Journal of Thermal Sciences, 2023 - Elsevier
The almost-complete violation of Kirchhoff's law possesses various potential applications,
such as nonreciprocal thermal emitters, thermal routers, and other logic devices. Recently …

Observation of nonvanishing optical helicity in thermal radiation from symmetry-broken metasurfaces

X Wang, T Sentz, S Bharadwaj, SK Ray, Y Wang… - Science …, 2023 - science.org
Spinning thermal radiation is a unique phenomenon observed in condensed astronomical
objects, including the Wolf-Rayet star EZ-CMa and the red degenerate star G99-47, due to …

High quality factor nonreciprocal thermal radiation in a weyl semimetal film via the strong coupling between tamm plasmon and defect mode

J Wu, H Li, C Fu, X Wu - International Journal of Thermal Sciences, 2023 - Elsevier
In this work, we propose a composite multilayer structure consisting of a Weyl semimetal
(WS) film and photonic crystal (PC) with a defect layer to achieve nonreciprocal thermal …

Near-complete violation of Kirchhoff's law of thermal radiation in ultrathin magnetic Weyl semimetal films

J Wu, Z Wang, H Zhai, Z Shi, X Wu, F Wu - Optical Materials Express, 2021 - opg.optica.org
The ability to break Kirchhoff's law is of fundamental importance in thermal radiation. Various
nonreciprocal emitters have been proposed to break the balance between absorption and …

Mid-infrared broadband circular polarizer based on Weyl semimetals

C Yang, B Zhao, W Cai, ZM Zhang - Optics Express, 2022 - opg.optica.org
As a three-dimensional topological phase of matter, Weyl semimetals possess extremely
large gyrotropic optical response in the mid-infrared region, leading to the strong chiral …

Bright, circularly polarized black-body radiation from twisted nanocarbon filaments

J Lu, HJ Jung, JY Kim, NA Kotov - Science, 2024 - science.org
Planck's law ignores but does not prohibit black-body radiation (BBR) from being circularly
polarized. BBR from nanostructured filaments with twisted geometry from nanocarbon or …

[HTML][HTML] Tunable broadband compact optical isolator based on Weyl semimetal

J Wu, Y Xiang, X Dai - Results in Physics, 2023 - Elsevier
We theoretically set up a 4× 4 magneto-optical matrix to investigate the transmittances
induced by the forward and backward left hand circularly polarized (LCP) waves impinging …

Spin-selective thermal radiation with near-perfect circular dichroism in twisted hyperbolic materials

B Wu, X Wu, H Li, H Liu, X Huang - International Journal of Thermal …, 2024 - Elsevier
Spinning thermal radiation is a unique phenomenon in the symmetry-broken system, which
is of both fundamental and applied interest. Its potential applications include chiral …