Figure 7

PL spectra of Pt NCs in silica and Ag, Au and Pt in sapphire by using right (σ+) and left (σ−) circularly polarized light. The pump laser fluence was around 180 mJ/cm2.
PL spectra of Pt NCs in silica and Ag, Au and Pt in sapphire by using right (σ+) and left (σ−) circularly polarized light. The pump laser fluence was around 180 mJ/cm2.