摘要
根据传输矩阵法和基尔霍夫定律研究了负折射率薄膜的热发射特性.较为系统地考察了相关参数对热辐射s偏振波的影响.研究结果表明,负折射率材料的热发射率随角频率的变化呈现复杂的振荡现象.同时也发现,它的发射率峰值有时在远离法线的区域.
Thermal emission characteristics of a negative index semitransparent thin film were studied based on transmit matrix method and Kirchhoff radiation law. The influence of different parameters on the emissivity of s-polarization wave was studied. The results show that a complicated oscillation will happen when the angular frequency increases. It also shows that the peak value of the emissivity is sometimes far away from the normal direction.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第4期289-292,共4页
Journal of Infrared and Millimeter Waves
基金
国家自然科学基金(50606003)
航空科学基金(2007ZA51006)资助项目
关键词
发射率
负折射率
薄膜
相干性
emissivity
negative index
thin film
coherence
