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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.13712 |
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| _version_ | 1866917492119568384 |
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| author | Ordonez-Miranda, Jose Luo, Minggang Diego, Michele Anufriev, Roman Guillemot, Victor Nomura, Masahiro Volz, Sebastian |
| author_facet | Ordonez-Miranda, Jose Luo, Minggang Diego, Michele Anufriev, Roman Guillemot, Victor Nomura, Masahiro Volz, Sebastian |
| contents | We demonstrate that the near-field thermal radiation between subwavelength SiC nanowires with square cross sections is dominated by multiple corner and edge resonances rather than the single surface-phonon-polariton channel of planar surfaces. Fluctuational electrodynamics simulations reveal that these resonances lie within the SiC Reststrahlen band, redshift for thinner nanowires, and yield a four-fold enhancement of thermal conductance. This maximum enhancement occurs when the separation gap nearly matches the nanowire thickness, balancing dimensional confinement and interwire coupling. These findings establish square nanowires as a versatile platform for geometrycontrolled near-field heat transfer in nanoscale heat management and energy conversion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_13712 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Enhanced Near-Field Thermal Radiation Driven by Multiple Corner and Edge Modes in Subwavelength Square Nanowires Ordonez-Miranda, Jose Luo, Minggang Diego, Michele Anufriev, Roman Guillemot, Victor Nomura, Masahiro Volz, Sebastian Mesoscale and Nanoscale Physics We demonstrate that the near-field thermal radiation between subwavelength SiC nanowires with square cross sections is dominated by multiple corner and edge resonances rather than the single surface-phonon-polariton channel of planar surfaces. Fluctuational electrodynamics simulations reveal that these resonances lie within the SiC Reststrahlen band, redshift for thinner nanowires, and yield a four-fold enhancement of thermal conductance. This maximum enhancement occurs when the separation gap nearly matches the nanowire thickness, balancing dimensional confinement and interwire coupling. These findings establish square nanowires as a versatile platform for geometrycontrolled near-field heat transfer in nanoscale heat management and energy conversion. |
| title | Enhanced Near-Field Thermal Radiation Driven by Multiple Corner and Edge Modes in Subwavelength Square Nanowires |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2605.13712 |