Table 2. Mean refractive indices of the various tissue groups and corresponding fit parameters.

Tissue	Mean real index ± SD
	450 nm	532 nm	632.8 nm	964 nm	1551 nm
N	1.385 ± 0.004	1.380 ± 0.005	1.378 ± 0.008	1.369 ± 0.005	1.362 ± 0.003
MET	1.365 ± 0.015	1.359 ± 0.011	1.355 ± 0.012	1.349 ± 0.012	1.343 ± 0.011
NMET	1.388 ± 0.011	1.379 ± 0.010	1.376 ± 0.011	1.368 ± 0.011	1.361 ± 0.010
HCC	1.373 ± 0.007	1.368 ± 0.006	1.362 ± 0.011	1.355 ± 0.003	1.347 ± 0.005
NHCC	1.375 ± 0.011	1.367 ± 0.008	1.365 ± 0.012	1.356 ± 0.008	1.345 ± 0.012
Tissue	104 × [Mean imaginary index ± SD]
	450 nm	532 nm	632.8 nm	964 nm	1551 nm
N	32 ± 6	38 ± 4	34 ± 8	30 ± 4	24 ± 9
MET	61 ± 25	59 ± 21	57 ± 15	46 ± 27	38 ± 16
NMET	52 ± 25	51 ± 17	49 ± 22	43 ± 21	39 ± 15
HCC	61 ± 16	56 ± 25	65 ± 20	57 ± 12	52 ± 8
NHCC	62 ± 31	55 ± 20	61 ± 15	47 ± 7	48 ± 20
Tissue	Real index fit parameters			Imaginary index fit parameters
	A	B (μm2)	C (μm4)	a	b
N	1.35910	0.00827	−0.000576	196	1.27
MET	1.34127	0.00634	−0.000324	780	1.41
NMET		Same as N		238	1.25
HCC	1.34348	0.00998	−0.000793	145	1.14
NHCC		Same as HCC		301	1.25