Table 1.

Change in SPR resonance angle of nanohole arrays with different D/P-ratios compared to a continuous gold film. Each value represents the average value of three measurements. Errors indicate the standard deviation of these measurements.

	continuous film	D/P of the nanohole array
		0.80	0.73	0.63	0.58	0.43	0.35
ΔθSPR / °	0.13 ± 0.08	0.5 ± 0.1	0.49 ± 0.03	0.6 ± 0.1	0.6 ± 0.2	0.5 ± 0.1	0.6 ± 0.2