Here we report the experimental observation of circular dichroism induced by optical extrinsic chirality in the second harmonic field (800nm-400nm) of self-organized nanowires arrays with sub-wavelength periodicity (160nm). In the measurements, the second harmonic signal generated by the curved nanowires was recorded as a function of the incidence angle for left- and right-handed impinging pump fundamental light; the results show more than 50% of visibility of the extrinsic optical nonlinear circular dichroism.
Circular dichroism of self-organized metal nanowires arrays in the second harmonic field / Belardini, Alessandro; Larciprete, Maria Cristina; Centini, Marco; Fazio, Eugenio; Sibilia, Concetta; D., Chiappe; C., Martella; A., Toma; M., Giordano; F., Buatier De Mongeot. - STAMPA. - (2012), pp. 131-132. (Intervento presentato al convegno Micro- and nano-photonic materials and devices tenutosi a Trento, Italy nel 16-18 January 2012).
Circular dichroism of self-organized metal nanowires arrays in the second harmonic field
BELARDINI, ALESSANDRO;LARCIPRETE, Maria Cristina;CENTINI, MARCO;FAZIO, Eugenio;SIBILIA, Concetta;
2012
Abstract
Here we report the experimental observation of circular dichroism induced by optical extrinsic chirality in the second harmonic field (800nm-400nm) of self-organized nanowires arrays with sub-wavelength periodicity (160nm). In the measurements, the second harmonic signal generated by the curved nanowires was recorded as a function of the incidence angle for left- and right-handed impinging pump fundamental light; the results show more than 50% of visibility of the extrinsic optical nonlinear circular dichroism.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
