Direct method of extracting broadband complex refractive index from spectrophotometric measurements: an application to polydimethylsiloxane for passive radiative cooling [0.03%]
从分光光度测量直接提取宽带复折射率的方法及其在制备被动辐射冷却聚二甲基硅氧烷中的应用
Braden Czapla,Leonard Hanssen
Braden Czapla
We describe an algorithm to extract the complex refractive index of a material from broadband reflectance and transmittance measurements taken by spectrophotometers. The algorithm combines Kramers-Kronig analysis with an inversion of Fresne...
Tunable wavelength selectivity of photonic metamaterials-based thermal devices [0.03%]
基于光子手性材料的热辐射器件波长调制特性研究
Yanpei Tian,Alok Ghanekar,Xiaojie Liu et al.
Yanpei Tian et al.
Wavelength-selective thermal devices have great applications in concentrating solar power systems, high-temperature thermoelectric systems, and solar thermophotovoltaics (STPVs). Lack of high-temperature stability and spectrally selective e...
Performance enhancement of near-field thermoradiative devices using hyperbolic metamaterials [0.03%]
利用双曲型超材料增强近场热辐射装置性能
Alok Ghanekar,Yanpei Tian,Xiaojie Liu et al.
Alok Ghanekar et al.
We analyze a near-field thermoradiative device that consists of an indium arsenide-based photodiode under negative illumination. We analyze a possible enhancement of conversion efficiency by use of hyperbolic metamaterial (HMM) in place of ...