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Optical Material

Simphoton is capable of fabricating a wide variety of optical components with various optical materials. The most important material properties to consider for an optical element are transmission versus wavelength, index of refraction, thermal characteristics, mechanical and chemical characteristics and cost.
To select the right materials seems overwhelming. The simplest way is to let Simphoton know your applications, and we select them for you.
Materials

Refractive Index

Transmission Range(um)

Thermal Expansion Coefficient (10-6/K)

BK7

1.5164 (588nm)

0.330 - 2.1

7.1

SF11

1.78472(588nm)

0.370 - 2.5

6.1

SF14

1.76182(588nm)

0.420 - 2.0

6.6

Fused Silica

1.4858 (308nm)

0.185 - 2.5

0.50

CaF2

1.399 (5.0um)

0.170 - 7.8

18.85

Sapphire

1.755 (1.0um)

0.180 - 4.5

8.4

Silicon

3.4179 (10um)

1.200 - 7.0

2.23

Ge

4.003 (10um)

1.900 - 16

5.7

ZnSe

2.40 (10um)

0.630 - 18

7.1

ZnS

2.2 (10um)

0.380 - 14

6.5

MgF2

no=1.3836 ne=1.3957 (405nm)

0.130 - 7.0

8.8||c; 13.1||a

YVO4

no=1.9500 ne=2.1554 (1.3um)

0.400 - 5.0

11.37||c; 4.43||a

CaCO3(Calcite)

no=1.6557 ne=1.4852 (633nm)

0.210 - 2.3

24.39||c; 5.68||a

Quartz

no=1.5427 ne=1.5518 (633nm)

0.200 - 2.3

6.88||c; 12.38||a

a-BBO

no=1.6749 ne=15555 (532nm)

0.190 - 3.5

33.3||c; 0.5||a

LiNbO3

no=2.2863 ne=2.2027 (633nm)

0.370 - 4.5

4.1||c; 14.8||a

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