宽带双模自适应角度各向异性热发射器

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2024-11-19 DOI:10.1016/j.physleta.2024.130083

Huaiyuan Yin

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引用次数: 0

摘要

利用大角度发射控制远场热辐射的现象已逐渐引起人们的关注，但这种现象以前只出现在 TM 模式中。使 TE 模式具有与 TM 模式相似的发射趋势非常重要。通过引入一种类似光栅的相变材料：二氧化钒（VO2），发射器在大气窗口范围（8-13 um）内实现了两种模式之间 TE 发射率的宽带可控差异。发射率的变化范围接近 0.9。此外，发射器还增加了不同角度的温控彩色显示屏，使人们更容易直观地判断发射器的工作状态。这种可调式宽带大角度定向辐射器使随角度变化的热辐射控制成为可能。它在热伪装、定向辐射冷却、太阳能冷却废热回收等领域具有潜在的应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Wide-band dual-mode adaptive angle anisotropic thermal emitter

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Wide-band dual-mode adaptive angle anisotropic thermal emitter

The phenomenon of controlling far-field thermal radiation with large-angle emission has gradually attracted attention, but it was previously only present in the TM mode. The ability to make the TE mode have a similar emission trend to the TM mode is important. By introducing a grating-like phase change material:vanadium dioxide (VO₂), the emitter has achieved wide-band controllable differences in TE emission rates between the two modes in the atmospheric window range (8–13 um). The range of variation in the emission rate is close to 0.9. Furthermore, temperature-controlled color displays at different angles have been added to the emitter, which makes it easier to judge the working state of the emitter visually. This adjustable broadband large-angle directional emitter makes angle-dependent thermal radiation control possible. It has potential application value in the fields of thermal camouflage, directional radiative cooling, solar cooling waste and heat recovery.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.