Radiative heat transfer in low-symmetry Bravais crystal

Abstract

Over the last few years, broken symmetry within crystals has attracted extensive attention since it can improve the control of light propagation. In particular, low-symmetry Bravais crystal can support shear polaritons which has great potential in thermal photonics. In this work, we report a twist-induced near-field thermal control system based on the low-symmetry Bravais crystal medium (\b{eta}-Ga2O3). The near-field thermal radiation (NFTR) between such crystal slabs is nearly four orders of magnitude larger than the blackbody limit, exceeding the NFTR from other traditional dielectric materials. Moreover, we show that this crystal can serve as an excellent platform for twist-induced near-field thermal control. Due to the intrinsic shear effect, the twist-induced modulation supported by low-symmetry Bravais crystal exceeds that by high-symmetry crystal. We further clarify how the shear effect affects the twist-induced thermal-radiation modulation supported by hyperbolic and elliptical polaritons and show that the shear effect significantly enhances the twist-induced thermal control induced by the elliptical polariton mode. These results open new directions for thermal-radiation control in low-symmetry materials, including geological minerals, common oxides, and organic crystals.

References in corpus (29)

• Magic-angle graphene superlattices: a new platform for unconventional superconductivity
• Surface Electromagnetic Waves Thermally Excited: Radiative Heat Transfer, Coherence Properties and Casimir Forces Revisited in the Near Field
• Observation of topological polaritons and photonic magic angles in twisted van der Waals bi-layers
• Near-field thermal transistor
• Near-field Radiative Heat Transfer in Many-Body Systems
• Broadband directional control of thermal emission
• Near-field thermal radiation transfer controlled by plasmons in graphene
• Near-field heat transfer between graphene/hBN multilayers
• Anisotropy, phonon modes, and free charge carrier parameters in monoclinic $\beta$-gallium oxide single crystals
• Modulation of near-field heat transfer between two gratings
• Analytical approximations for the dispersion of electromagnetic modes in slabs of biaxial crystals
• Harnessing near-field thermal photons with efficient photovoltaic conversion
• Magnetic-tunable nanoscale thermal radiation between twisted graphene gratings
• Radiative Thermal Rectification between SiC and SiO2
• Tuning the electromagnetic local density of states in graphene-covered systems via strong coupling with graphene plasmons
• Active control of near-field radiative heat transfer by coating-twisting method
• Enhancing near-field heat transfer between composite structures through strongly-coupled surface modes
• Magnetically tunable multi-band near-field radiative heat transfer between two graphene sheets
• Magnetic field effects in the near-field radiative heat transfer between planar structures
• Near-field energy transfer between graphene and magneto-optic media
• Twist-induced Near-field Thermal Switch Using Nonreciprocal Surface Magnon-Polaritons
• Polariton Topological Transition Effects on Radiative Heat Transfer
• Near-field radiative heat transfer between twisted nanoparticle gratings
• Spectral thermal gaps due to plasmon-phonon mode interaction in bilayer systems
• High-Performance Photonic Transformers for DC Voltage Conversion
• Radiative thermal switch via asymmetric black phosphorus gratings
• Controllable thermal radiation from twisted bilayer graphen
• Small distance expansion for radiative heat transfer between curved objects
• Electron-Nuclear Interactions as a Test of Crystal-Field Parameters for Low Symmetry Systems: Zeeman-Hyperfine Spectroscopy of Ho${}^{3+}$ Doped Y${}_2$SiO${}_5$

Cited by in corpus (5)

• Two-dimensional natural hyperbolic materials: From polaritons modulation to applications
• Optimization of highly circularly polarized thermal radiation in $\alpha$-MoO${}_3$/$\beta$-Ga${}_2$O${}_3$ twisted layers
• Many-body interaction on near-field radiative heat transfer between two nanoparticles caused by proximate particle ensembles
• Anomalous enhancement of thermal radiation transport by quasidisorder
• Gain-loss-engineering: a new platform for extreme anisotropic thermal photon tunneling