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题名:
Truncated spherical voids for nearly omnidirectional optical absorption
作者: Wang Min; Hu Chenggang; Pu Mingbo; Huang Cheng; Zhao Zeyu; Feng Qin; Luo Xiangang
刊名: OPTICS EXPRESS
出版日期: 2011
卷号: 19, 期号:21, 页码:20642-20649
通讯作者: Wang M (Wang Min)
文章类型: 期刊论文
中文摘要: Truncated spherical voids nanostructured tungsten films are shown to have nearly perfect absorption with characteristics of broad-band, polarization-independent and wide-incidence angle in near infrared and visible regime. Through optimizing material and structural parameters, we can achieve the absorbance above 90% from 420THz to 600THz within incidence angle from 0 degrees to 60 degrees for TE polarization and from 450THz to 800THz within incidence angle from 0 degrees to 75 degrees for TM polarization. In particular, absorbance can achieve 99.9% at 550.5THz for both polarizations under normal incidence. Such strong absorption is explained using multilayer effective media theory and cavity resonance. (C)2011 Optical Society of America
英文摘要: Truncated spherical voids nanostructured tungsten films are shown to have nearly perfect absorption with characteristics of broad-band, polarization-independent and wide-incidence angle in near infrared and visible regime. Through optimizing material and structural parameters, we can achieve the absorbance above 90% from 420THz to 600THz within incidence angle from 0 degrees to 60 degrees for TE polarization and from 450THz to 800THz within incidence angle from 0 degrees to 75 degrees for TM polarization. In particular, absorbance can achieve 99.9% at 550.5THz for both polarizations under normal incidence. Such strong absorption is explained using multilayer effective media theory and cavity resonance. (C)2011 Optical Society of America
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6766
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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Wang Min,Hu Chenggang,Pu Mingbo,et al. Truncated spherical voids for nearly omnidirectional optical absorption[J]. OPTICS EXPRESS,2011,19(21):20642-20649.
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