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

Figure 1

The dependencies of the por-Au films thicknesses on the distance from the film point to the erosion torch axis (): (a) argon pressure 13.5 Pa and (b) 100 Pa. The corresponding one pulse energy was 5 J/сm² and the number of laser pulses . In the insertion the scheme of the vacuum PLD equipment set is presented: (1) laser beam, (2) gas flux, (3) vacuum chamber, (4) erosion torch, (5) target, (6, 7) substrates, and (8) vacuum pump.