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|Title:||Self-supported all-metal THz metamaterials||Authors:||Moser, H.O.
Bin Mahmood, S.
|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. https://doi.org/10.1117/12.826679||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||URI:||http://scholarbank.nus.edu.sg/handle/10635/113060||ISBN:||9780819476821||ISSN:||0277786X||DOI:||10.1117/12.826679|
|Appears in Collections:||Staff Publications|
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