Moser H O, Jian L K, Chen H S, Bahou M, Kalaiselvi S M P, Virasawmy S, Maniam S M, Cheng X X, Heussler S P, bin Mahmood Shahrain, Wu B-I
Singapore Synchrotron Light Source (SSLS), National University of Singapore (NUS), 5 Research Link, Singapore 117603.
Opt Express. 2009 Dec 21;17(26):23914-9. doi: 10.1364/OE.17.023914.
Modern metamaterials face functional constraints as they are commonly embedded in or deposited on dielectric materials. We provide a new solution by microfabricating a completely free-standing all-metal self-supported metamaterial. Using upright S-string architecture with the distinctive feature of metallic transverse interconnects, we form a locally stiff, globally flexible space-grid. Infrared Fourier transform interferometry reveals the typical double-peak structure of a magnetically excited left-handed and an electrically excited right-handed pass-band that is maintained under strong bending and heating, and is sensitive to dielectrics. Exploiting UV/X-ray lithography and ultimately plastic moulding, meta-foils can be mass manufactured cost-effectively to serve as optical elements.
现代超材料通常嵌入或沉积在介电材料中，因此面临功能限制。我们通过微制造一种完全独立的全金属自支撑超材料提供了一种新的解决方案。利用具有金属横向互连独特特征的直立S形结构，我们形成了一种局部刚性、整体灵活的空间网格。红外傅里叶变换干涉测量揭示了磁激发左手通带和电激发右手通带的典型双峰结构，该结构在强烈弯曲和加热下保持不变，并且对电介质敏感。利用紫外/ X射线光刻技术并最终采用塑料成型工艺，可以经济高效地批量制造超箔，用作光学元件。
