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. 2015 Nov 5;5:16069. doi: 10.1038/srep16069

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Copyright © 2015, Macmillan Publishers Limited

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(a–c) The optical spectra of single Ag nanorices and Au-Ag heterodimers with various size but the same aspect ratio (l/d = 4, g = 10 nm). (a) The extinction spectra of individual Ag nanorices excited by linear polarized light. (b) The extinction spectra of Au-Ag heterodimers excited by LCP and RCP light. (c) The CD spectra for Au-Ag heterodimers. (d–f) The optical spectra of single Ag nanorices and Au-Ag heterodimers with different aspect ratio (l/d = 3,4,6, g = 10 nm). (d) The extinction spectra of single Ag nanorice excited by linear polarized light. (e) The extinction spectra of Au-Ag heterodimers excited by LCP and RCP light. The inset shows the Fano fittings (green lines, ) of the overlapped peaks for different aspect ratio excited with RCP. The q values reflect the asymmetry of the peaks. (f) The CD spectra for Au-Ag heterodimers. The dimers are set as (l(d)) in the figure.

Inline graphic — (a–c) The optical spectra of single Ag nanorices and Au-Ag heterodimers with various size but the same aspect ratio (l/d = 4, g = 10 nm). (a) The extinction spectra of individual Ag nanorices excited by linear polarized light. (b) The extinction spectra of Au-Ag heterodimers excited by LCP and RCP light. (c) The CD spectra for Au-Ag heterodimers. (d–f) The optical spectra of single Ag nanorices and Au-Ag heterodimers with different aspect ratio (l/d = 3,4,6, g = 10 nm). (d) The extinction spectra of single Ag nanorice excited by linear polarized light. (e) The extinction spectra of Au-Ag heterodimers excited by LCP and RCP light. The inset shows the Fano fittings (green lines, ) of the overlapped peaks for different aspect ratio excited with RCP. The q values reflect the asymmetry of the peaks. (f) The CD spectra for Au-Ag heterodimers. The dimers are set as (l(d)) in the figure.