Materials	Refractive Index	Transmission Range (mm)	Density (g/cm3)	Thermal Expansion  Coefficient (10-6/K)
BK7 glass	1.5164 (588 nm)	0.330 - 2.1	2.51	7.5
SF11 glass	1.78472 (588 nm)	0.370 - 2.5	4.74	6.8
F2 glass	1.62004 (588 nm)	0.420 - 2.0	3.61	8.2
Fused Silica	1.4858 (308 nm)	0.185 - 2.5	2.20	0.55
CaF2	1.399 (5.0 mm)	0.170 - 7.8	3.18	8.85
BaF2	1.460 (3.0 um)	0.15 - 12.0	4.88	18.4
Sapphire	1.755 (1.0mm)	0.180 - 4.5	3.98	8.4
Silicon	3.4179 (10mm)	1.200 - 7.0	2.33	4.15
Ge	4.003 (10 mm)	1.900 - 16	5.33	6.1
ZnSe	2.40  (10 mm)	0.630 - 18	5.27	7.8
ZnS	2.2 (10mm)	0.380 - 14	4.09	6.5
LiF	1.39 (500 nm)	[0.150 - 5.2	2.64	37
KBr	1.526 (10 mm)	[0.280 - 22	2.75	43
MgF2	no = 1.3836  ne = 1.3957 (405 nm)	0.130 - 7.0	7.37	a: 13.7 b: 8.48
YVO4	no = 1.9500 ne = 2.1554 (1.3 mm)	0.400 - 5.0	4.22	a: 4.46 b: 11.37
Calcite	no = 1.6557 ne = 1.4852 (633 nm)	0.210 - 2.3	2.75	a: 24.39 b: 5.68
Quartz	no = 1.5427 ne = 1.5518 (633 nm)	0.200 - 2.3	2.65	7.07
α-BBO	no = 1.6749 ne = 1.5555 (532 nm)	0.190 - 3.5	3.85	a: 4.0 c: 36
LiNbO3	no = 2.2863 ne = 2.2027 (633 nm)	0.370 - 4.5	4.64	a: 16.7 c: 2.0
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