Figure 3 | Scientific Reports

Figure 3

From: Plasmon-Enhanced Light Harvesting of Chlorophylls on Near-Percolating Silver Films via One-Photon Anti-Stokes Upconversion

Figure 3

Plasmon-enhanced one-photon anti-Stokes upconversion of Chl-mix:PVP films excited by a CW laser with λexc = 735 nm.

Upconverted fluorescence spectra of the Chl-mix:PVP on the silver films with td/tc = 0, 0.26, 0.43, 0.60, 0.77 and 0.94 (a) and td/tc = 0.94, 1.06, 1.11 and 1.28 (b). Enhancement of upconverted fluorescence reaches the maximum for the near-percolating silver film (td/tc = 0.94).

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