Table 1

Geometry parameters (d, g) for which the spectral response of the investigated metasurface adjusts to different rhodamine 6G Raman shifts , resonance positions of the resulting peaks in the metasurface spectral response , maximum value of the corresponding local scattered field enhancement factors at peak wavelengths , and the maximum value of the local SECARS enhancement factor . Maximization is here performed over positions within the unit cell.

[cm–1]		Geometry		Stokes		Pump		Anti-Stokes
	d [nm]	g [nm]
	1314	7.4	5.4	920	81	821	71	741	28	1.3×1014
	1363	7.5	5.5	930	79	825	69	742	25	1.1×1014
	1512	10.0	5.6	939	82	822	55	731	18	0.2×1014