期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 26, 期 9, 页码 949-952出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2014.2311045
关键词
Diffraction; gratings; optical resonance; plasmons
资金
- Ministry of Science and Technology of China [2012YQ17004]
- National Natural Science Foundation of China [61127013, 61308077]
The spectrum selective absorption effect of a vertically cascaded metal-dielectric grating structure is studied. A polarization-independent spectrum selective absorber based on two pairs of stacked metal-dielectric grating structures is presented for the infrared frequencies. The near-unity absorption with polarization independence is observed under normal incidence. The understanding of such a perfect selective absorption mechanism is illustrated by investigating the electric field distributions and power loss density at the resonant wavelength. The angle independence is also studied for this absorber and it is found that the absorber can maintain high absorbance around large incident angle range (0 degrees-33 degrees), especially for the TM polarization.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据