Table 3.

Electric field parameters for the surfaces consisting of Ag hemisphere.

Hemisphere Ag Radius	L	Excitation Wavelength, $\mathit{\lambda }$—nm
		532	632.8	532	632.8	532	632.8
		Local Maximum of Electric Field E, V/m		SERS Signal Intensity, a.u.		Enhancement Coefficient |E/E0|4
20	1	34.5	19.2	4.88·106	8.54·105	2.38·1013	7.29·1011
	2	33	18.1	6.61·105	5.95·105	4.36·1011	3.54·1011
	3	31.4	17.4	3.92·105	4.2·105	1.54·1011	1.76·1011
30	1	58	32.1	7.6·106	1.21·106	5.78·1013	1.45·1012
	2	69.9	38.1	1.59·106	3.03·105	2.54·1012	9.16·1010
	3	68	37.3	2.44·106	4.28·105	5.95·1012	1.83·1011
40	1	121	63.9	1.62·106	2.72·105	2.62·1012	7.37·1010
	2	162	83.7	2.04·106	3.74·105	4.15·1012	1.4·1011
	3	112	59.3	2.55·106	7.03·105	6.48·1012	4.94·1011
70	1	122	59.3	7.81·105	3.38·105	6.1·1011	1.15·1011
	2	240	109	3.32·105	3.25·105	1.1·1011	1.05·1011
	3	149	68.5	3.51·105	4.31·105	1.23·1011	1.86·1011