Deep sub-wavelength scale focusing of heat flux radiated by magneto-optical nanoemitters in the presence of an external magnetic-field
arXiv:2408.01376 · doi:10.1016/j.jqsrt.2024.109322
Abstract
We introduce a theoretical framework to describe the heat flux radiated in the near-field regime by a set of magneto-optical thermal nanoemitters close to a substrate in the presence of an external magnetic field. Then, we investigate the particular case of a single emitter and we demonstrate that the external field can induce both an amplification of the heat exchanged between emittter and substrate and a focusing of the Poynting field at the substrate interface at deep sub-wavelength scale. These effects open up promising perspectives for the development of heat-assisted magnetic-recording technology.
arXiv comment8 pages, 4 figures
References in corpus (30)
- Surface Electromagnetic Waves Thermally Excited: Radiative Heat Transfer, Coherence Properties and Casimir Forces Revisited in the Near Field
- Near-field thermal transistor
- Near-field Radiative Heat Transfer in Many-Body Systems
- Many-body radiative heat transfer theory
- Photon thermal Hall effect
- Fluctuational-electrodynamic theory and dynamics of heat transfer in multiple dipolar systems
- Imaging non-local electron transport via local excess noise
- Radiative thermal diode driven by non-reciprocal surface waves
- Near-field thermal imaging of nanostructured surfaces
- Giant thermal magnetoresistance in plasmonic structures
- Heat superdiffusion in plasmonic nanostructure networks
- Thermal discrete dipole approximation for the description of thermal emission and radiative heat transfer of magneto-optical systems
- Surface-mode-assisted amplification of radiative heat transfer between nanoparticles
- Heat Transport Through Plasmonic Interactions in Closely Spaced Metallic Nanoparticles Chains
- Towards boolean operations with thermal photons
- Contactless heat flux control with photonic devices
- Modeling near-field radiative heat transfer from sharp objects using a general 3d numerical scattering technique
- Non-trivial topological structure of heat and momentum flux radiated by magneto-optical nanoparticles
- Heat Transfer Through Near-Field Interactions in Nanofluids
- Thermal radiation in systems of many dipoles
- Radiative thermal switch exploiting hyperbolic surface phonon polaritons
- Multi-tip near-field scanning thermal microscopy
- Magneto-thermoplasmonics: from theory to applications
- Heat radiation and transfer in confinement
- Smart thermal management with near-field thermal radiation
- Quantum Langevin equation approach to electromagnetic energy transfer between dielectric bodies in an inhomogeneous environment
- Long-range super-Planckian heat transfer between nanoemitters in a resonant cavity
- Graphene-based autonomous pyroelectric system for near-field energy conversion
- Radiative cooling induced by time-symmetry breaking in periodically-driven systems
- Controlling local thermal states in classical many-body systems