Table 6.

Electric field parameters for the surfaces consisting of Pt NPs.

Hemisphere Pt Radius	L	Excitation Wavelength, $\mathit{\lambda }$—nm
		244	355	244	355	244	355
		Local Maximum of Electric Field E, V/m		SERS Signal Intensity, a.u.		Enhancement Coefficient |E/E0|4
15	1	14.1	14.1	223	2040	4.98·104	4.18·106
	2	16.1	16.1	293	2580	8.6·104	6.67·106
	3	16.7	16.7	327	2940	1.07·105	8.66·106
20	1	19.7	19.8	399	1950	1.59·105	3.81·106
	2	22.9	22.9	565	2740	3.2·105	7.5·106
	3	23.7	23.7	616	3050	3.79·105	9.28·106
40	1	37	37.3	1370	3850	1.48·107	4.87·105
	2	41.2	41.4	1960	4820	2.87·106	2.32·107
	3	44.2	44.6	1960	2940	3.83·106	8.66·106
50	1	37.5	37.7	1410	3720	1.98·106	1.39·107
	2	48.1	48.5	2130	4030	5.35·106	1.62·107
	3	53.1	53.4	2820	4810	7.43·106	2.31·107