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. 2024 Aug 31;96(37):14909–14917. doi: 10.1021/acs.analchem.4c02906

Table 1. Optical Conditions and Calculated S/N Ratios of Raman Spectra Obtained from Two E. coli K12 Colonies.

	spatial resolution [μm]		S/N ratio [-]
NA	XY	Z	750 cm^–1	1130 cm^–1	1580 cm^–1	1660 cm^–1
0.90	1.2	6.4	5.28	8.15	6.12	4.65
0.75	2.3	7.8	3.49	4.16	1.90	2.27
0.65	2.8	8.6	2.44	3.25	1.90	1.92
0.25	11	∼240	2.13^a	1.88^a	1.52^a	1.56^a

^a

For N = 1 owing to the weak signal.