Optical Characterization of SERS Substrates Based on Porous Au Films Prepared by Pulsed Laser Deposition

Figure 6

The SERS spectra of the Rhodamine 6G molecules placed on the prepared substrates with various concentrations: 10⁻⁷ Mol/L (1) and 10⁻¹⁰ Mol/L (3). The SERS spectrum of Rhodamine 6G molecules with the concentration 10⁻⁷ Mol/L placed on the gold film deposited by thermal evaporation in vacuum is shown as curve 3. The SERS spectrum of Rhodamine 6G molecules with the concentration 10⁻³ Mol/L placed on glass is shown as curve 4.