Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4823594
Title: Free-standing terahertz chiral meta-foils exhibiting strong optical activity and negative refractive index
Authors: Wu, J.
Ng, B.
Turaga, S.P.
Breese, M.B.H. 
Maier, S.A.
Hong, M. 
Bettiol, A.A. 
Moser, H.O.
Issue Date: 2013
Source: Wu, J., Ng, B., Turaga, S.P., Breese, M.B.H., Maier, S.A., Hong, M., Bettiol, A.A., Moser, H.O. (2013). Free-standing terahertz chiral meta-foils exhibiting strong optical activity and negative refractive index. Applied Physics Letters 103 (14) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4823594
Abstract: A chiral meta-foil consisting of a self-supported square array of interconnected conjugated rosettes is demonstrated at terahertz frequencies. It exhibits strong optical activity and circular dichroism. Negative refractive index with a figure-of-merit as high as 4.2 is achieved, attributed to its free-standing nature. Experimental results are in good agreement with numerical simulation. Free-standing chiral meta-foils provide a unique approach to create a completely all-metal chiral metamaterial, which can be flexibly integrated into optical setups while eliminating dielectric insertion losses. © 2013 AIP Publishing LLC.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/56087
ISSN: 00036951
DOI: 10.1063/1.4823594
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