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. Author manuscript; available in PMC: 2020 Jan 30.
Published in final edited form as: J Am Chem Soc. 2019 Jan 15;141(4):1725–1734. doi: 10.1021/jacs.8b12415

Figure 8.

Figure 8.

Near-field electric field distributions of incident light at the wavelengths of (a) 365 nm, (b) 485 nm, (c) 532 nm, (d) 633 nm, and (e) 785 nm, passing through the Pd–Pt QNS on a glass substrate. Measured (f) Raman spectra and (g) Raman peak signals of Pd–Pt QNS with 2 × 10−6 M Rhodamine B (RB), recorded at five different positions within an area of 0.5 × 0.5 mm2 with a spacing of 100 μm.