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.
Evaluation of the negative refractive index by beam deviation measurements / Belardini, Alessandro; Sibilia, Concetta. - In: OPTOELECTRONICS AND ADVANCED MATERIALS RAPID COMMUNICATIONS. - ISSN 1842-6573. - STAMPA. - 7:3-4(2013), pp. 184-187.
Evaluation of the negative refractive index by beam deviation measurements
BELARDINI, ALESSANDRO;SIBILIA, Concetta
2013
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
