Table 11.

Electric field parameters calculated for Au surfaces consisting of nanostars.

Stars Au	L	Excitation Wavelength, $\mathit{\lambda }$—nm
		632.8	785	632.8	785	632.8	785
		Local Maximum of Electric Field E, V/m		SERS Signal Intensity, a,u.		Enhancement Coefficient |E/E0|4
Outer radius 30 nm, Inner radius 10 mn, Height 8 nm	1	52.5	79.3	7540	19700	5.68·107	3.88·108
	2	37.9	63.4	5440	11900	2.96·107	1.42·108
	3	48	70.4	5900	15700	3.48·107	2.48·108
Outer radius 40 nm, Inner radius 10 mn, Height 8 nm	1	16.8	20.9	2530	18800	6.4·106	3.55·108
	2	27	36.6	2450	18400	6.01·106	3.38·108
	3	17.5	23.7	1650	5490	2.73·106	3.02·107
Outer radius 45 nm, Inner radius 15 mn, Height 8 mn	1	42.4	62.8	5570	19600	3.13·107	3.83·108
	2	57.2	87.3	7590	23800	5.76·107	5.67·108
	3	22.4	32.5	4770	36900	2.27·107	1.36·109
Outer radius 50 nm, Inner radius 20 mn, Height 10 nm	1	49.1	69	15,600	35400	2.45·108	1.25·109
	2	53.8	95.1	13,400	28800	1.79·108	8.29·108
	3	37.9	53.8	18,000	27700	3.23·108	7.7·108
Outer radius 60 nm, Inner radius 20 mn, Height 10 nm	1	24.3	35	11,700	51300	1.36·108	2.64·109
	2	42.4	62.9	7880	56100	6.21·107	3.15·109
	3	29.4	39	7180	41100	5.16·107	1.69·109
Outer radius 65 nm, Inner radius 25 mn, Hei ght 10 nm	1	61.3	87.3	13,900	1.52·105	1.92·108	2.32·1010
	2	79.8	117	7130	45800	5.08·107	2.09·109
	3	31.1	46.5	9690	43800	9.38·107	1.92·109
Outer radius 75 nm, Inner radius 25 mn, Hei ght 10 nm	1	30.3	44.9	11,400	11000	1.29·108	1.36·1010
	2	34.7	42.2	9180	46710	8.42·107	2.18·109
	3	27.9	36.4	11,500	23300	1.33·108	5.42·108