负折射率半透明薄膜的热发射特性研究  

THERMAL EMISSION CHARACTERISTICS OF A NEGATIVE INDEX SEMITRANSPARENT THIN FILM

作　　者：黄勇[1] 崔燚[1] 王浚[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《红外与毫米波学报》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

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.

关 键 词：发射率 负折射率 薄膜 相干性 

分 类 号：TK124[动力工程及工程热物理—工程热物理] O435[动力工程及工程热物理—热能工程]