Figure 1: Sample geometry.

Artist’s impression of the sample geometry (not to scale): A magnetic SRR metamaterial processed on a glass substrate is covered by a 200-nm-thin PVA layer containing QDs. The sample is excited by 532-nm cw laser from the top with a × 100 objective (NA=0.9). The measured spot size was ~800 nm. The QD PL is then collected from the bottom. The inset shows a scanning electron micrograph of a sample without the QD-containing PVA layer. The scale bar is 500 nm.