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A. BELARDINI1,* , C. SIBILIA1
Here we present an easy experimental method that allows the characterization of the negative refractive index of a isotropic metamaterial in the visible spectral region. The method is based on the measurement of the deviation of a light beam passing through the metamaterial as a function of the incident angle. The theoretical expression was derived in the case of negative refraction. It was shown that such a method can be used also in the realistic case of a thin metamaterial deposited on a thick substrate..
Negative index materials characterization, Metamaterials characterization, Optical characterization.
A. BELARDINI, C. SIBILIA, Evaluation of the negative refractive index by beam deviation measurements, Optoelectronics and Advanced Materials - Rapid Communications, 7, 3-4, March-April 2013, pp.184-187 (2013).
Submitted at: Nov. 7, 2012
Accepted at: April 11, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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