Spectrally Sharp近场热发射：揭示Casimir Polder传感器和远场发射预测之间的一些差异。

IF 8.1 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical review letters Pub Date : 2023-10-06 DOI:10.1103/PhysRevLett.131.143801

J C de Aquino Carvalho, I Maurin, P Chaves de Souza Segundo, A Laliotis, D de Sousa Meneses, D Bloch

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引用次数: 0

摘要

近场热发射在很大程度上超过了黑体辐射，这是由于表面极性子中的光谱尖锐发射。我们将Cs（7P_{1/2}）和蓝宝石界面之间的Casimir-Polder相互作用转化为一个传感器，在24.687 THz下，快速过滤约24.5的近场蓝宝石发射 THz。演示了蓝宝石模式的温度演化。Cs传感器对色散和耗散都很敏感，与受双折射和多重共振影响的远场蓝宝石发射预测相比，在高达1100K的情况下，极化激元会发生红移和更尖锐。

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Spectrally Sharp Near-Field Thermal Emission: Revealing Some Disagreements between a Casimir-Polder Sensor and Predictions from Far-Field Emittance.

Near-field thermal emission largely exceeds blackbody radiation, owing to spectrally sharp emission in surface polaritons. We turn the Casimir-Polder interaction between Cs(7P_{1/2}) and a sapphire interface into a sensor sharply filtering, at 24.687 THz, the near-field sapphire emission at ∼24.5 THz. The temperature evolution of the sapphire mode is demonstrated. The Cs sensor, sensitive to both dispersion and dissipation, suggests the polariton to be redshifted and sharper, as compared, up to 1100 K, to predictions from far-field sapphire emission, affected by birefringence and multiple resonances.

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks