Figure | Plasmon-enhanced Raman modes in AuNCs/NLG. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure | Plasmon-enhanced Raman modes in AuNCs/NLG.

Caption

Figure | Plasmon-enhanced Raman modes in AuNCs/NLG.(a) Schematic illustration of the AuNCs/NLG and the PERS of LB modes. (b) Optical (left panel, scale bar is 20 mm), SEM (middle panel, scale bar is 40 nm), and TEM (right panel, scale bar is 25 nm) images of AuNCs/NLG. (c) Dark-field scattering spectra of AuNCs/18LG and 18LG. (d) Low-frequency Raman spectra of AuNCs/18LG under on-resonance (λL=633 nm) and off-resonance (λL=532 nm) conditions. (e) Raman spectra of AuNCs/NLG and the corresponding NLG with λL of 633 nm (N=1, 2, 6, 18). The “*” and “+” symbols indicate the LB modes and new low-frequency modes, respectively. 

Credit

Ping-Heng Tan et al.

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