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Radiative thermal switch driven by anisotropic black phosphorus plasmons
- Source :
- Optics Express, Optics Express, Optical Society of America-OSA Publishing, 2020, 28, pp.26922. ⟨10.1364/OE.402642⟩
- Publication Year :
- 2020
- Publisher :
- Optica Publishing Group, 2020.
-
Abstract
- Black phosphorus (BP), as a two-dimensional material, has exhibited unique optoelectronic properties due to its anisotropic plasmons. In the present work, we theoretically propose a radiative thermal switch (RTS) composed of BP gratings in the context of near-field radiative heat transfer. The simply mechanical rotation between the gratings enables considerable modulation of radiative heat flux, especially when combined with the use of non-identical parameters, i.e., filling factors and electron densities of BP. Among all the cases including asymmetric BP gratings, symmetric BP gratings, and BP films, we find that the asymmetric BP gratings possess the most excellent switching performance. The optimized switching factors can be as high as 90% with the vacuum separation d=50 nm and higher than 70% even in the far-field regime d=1 µm. The high-performance switching is basically attributed to the rotatable-tunable anisotropic BP plasmons between the asymmetric gratings. Moreover, due to the twisting principle, the RTS can work at a wide range of temperature, which has great advantage over the phase change materials-based RTS. The proposed switching scheme has great significance for the applications in optoelectronic devices and thermal circuits.
- Subjects :
- Materials science
[PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas]
Physics::Optics
Context (language use)
02 engineering and technology
01 natural sciences
7. Clean energy
Optics
[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]
0103 physical sciences
Radiative transfer
Transmission coefficient
010306 general physics
Rigorous coupled-wave analysis
Plasmon
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
[PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]
business.industry
[PHYS.PHYS.PHYS-ATM-PH]Physics [physics]/Physics [physics]/Atomic and Molecular Clusters [physics.atm-clus]
021001 nanoscience & nanotechnology
Surface plasmon polariton
Atomic and Molecular Physics, and Optics
Modulation
Thermal radiation
Optoelectronics
0210 nano-technology
business
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Optics Express
- Accession number :
- edsair.doi.dedup.....8a1c98fe8d19d799d9452a0fa07ced4b
- Full Text :
- https://doi.org/10.1364/oe.402642