Sign manipulation of nonreciprocity in Weyl-semimetal-based thermal emitter

Wang, Zuohong; Qian, Liming; Zheng, Gaige; Wu, Xiaohu

doi:10.1016/j.icheatmasstransfer.2024.107810

International Communications in Heat and Mass Transfer

2024

DOI: 10.1016/j.icheatmasstransfer.2024.107810

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Sign manipulation of nonreciprocity in Weyl-semimetal-based thermal emitter

Zuohong Wang,

Liming Qian,

Gaige Zheng

et al.

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Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field

Fang,

Zou,

et al. 2024

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Reducing the magnetic field required for the emitter is one of the key challenges for nonreciprocal thermal photonics. Few structures support the dual-polarized nonreciprocity at low magnetic field yet. A photolithography-free emitter consisting of an InAs/SiO2/Al three-layer planar structure is proposed. The simulation results show that the dual-polarization nonreciprocity surpasses 75% at the magnetic field of 0.2 T. The sensitivity of nonreciprocity to the magnetic field is 4.15 T−1 and 3.76 T−1 for the TM and TE polarizations, respectively. The physical mechanism underlying the observed phenomenon is revealed by the study of electric field distribution and coupled-mode theory. The proposed strategy can be applied to the practical spectral region of thermal radiation (∼10 µm) with optimized parameters. This work has potential in the fields of nonreciprocal solar cells and nonreciprocal radiative cooling.

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Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field

Fang,

Zou,

et al. 2024

Opt. Express

View full text Add to dashboard Cite

show abstract

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Sign manipulation of nonreciprocity in Weyl-semimetal-based thermal emitter

Cited by 1 publication

References 63 publications

Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field

Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field

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Sign manipulation of nonreciprocity in Weyl-semimetal-based thermal emitter

Cited by 1 publication

References 63 publications

Dual-polarization nonreciprocal thermal radiation in an InAs/SiO2/Al three-layer planar structure with a 0.2 T magnetic field

Dual-polarization nonreciprocal thermal radiation in an InAs/SiO2/Al three-layer planar structure with a 0.2 T magnetic field

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Product

Resources

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Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field

Dual-polarization nonreciprocal thermal radiation in an InAs/SiO₂/Al three-layer planar structure with a 0.2 T magnetic field