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arXiv · 2502.16900

Broadband directional thermal emission with anisothermal microsources

Florian Herz·Riccardo Messina·Philippe Ben-Abdallah
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Abstract

Thermal emission is naturally spatially incoherent and lacks directionality. Here, we demonstrate that by precisely controlling the spatial temperature distribution within a solid, directional thermal emission can be achieved across a broad spectral range. These anisothermal sources open new avenues for manipulating radiative heat flux at the microscale and hold promise for applications in thermal management and energy conversion, enabling more efficient and targeted thermal control.

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Florian Herz, Riccardo Messina, Philippe Ben-Abdallah. 2025-02-24. Broadband directional thermal emission with anisothermal microsources. https://doi.org/10.1103/43y3-rh2f

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