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Title: Self-supported all-metal THz metamaterials
Authors: 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, S. 
Wu, B.-I.
Keywords: All-metal
Micro manufacturing
Issue Date: 2009
Citation: 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, S., Wu, B.-I. (2009). Self-supported all-metal THz metamaterials. Proceedings of SPIE - The International Society for Optical Engineering 7392 : -. ScholarBank@NUS Repository.
Abstract: Ideal metamaterials would consist of metal conductors only that are necessary for negative ε and μ. However, most of present-day metamaterials include dielectrics for various support functions. Overcoming dielectrics, we manufactured free-standing THz metamaterials as bi-layer chips of S-string arrays suspended by window-frames at a small gap that controls the resonance frequency. Remaining problems concerning their useful range of incidence angles and the possibility of stacking have been solved by manufacturing the first self-supported free-standing all-metal metamaterials featuring upright S-strings interconnected by metal rods. Large-area slabs show maximum magnetic coupling at normal incidence with left-handed resonances between 3.2 - 4.0 THz. Such metamaterials which we dub the meta-foil represent an ideal platform for including index-gradient optics to achieve optical functionalities like beam deflection and imaging. © 2009 SPIE.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
ISBN: 9780819476821
ISSN: 0277786X
DOI: 10.1117/12.826679
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