掩蔽
宽带
斗篷
光学
带宽(计算)
极化(电化学)
超材料
波前
波长
光电子学
材料科学
物理
计算机科学
电信
物理化学
化学
作者
Li-Yi Hsu,Abdoulaye Ndao,Boubacar Kanté
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2019-06-03
卷期号:44 (12): 2978-2978
被引量:19
摘要
In the past few years, carpet cloaking has attracted interest because of its feasibility at optical frequencies and potential in stealth technologies. Metasurfaces have been proposed as a method to engineer ultra-thin carpet cloaking surfaces due to their abilities to manipulate wavefronts, polarization, and phase at subwavelength scale. However, achieving broadband carpet cloaking with a significant bandwidth is one of the key remaining challenges for metasurface designs. To date, broadband carpet cloaking based on metasurfaces has not been achieved, and operation has been limited to discrete wavelengths. Here, we propose and numerically demonstrate a novel metasurface design for broadband carpet cloaking with linear polarization at visible wavelengths from 650 nm to 800 nm. Our proposed method is a promising approach for broadband structured interfaces.
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