Materials

Optical Components Coatings PDF
Material:

 

Sinoceramics has the capability to fabricate optical components with various optical materials. Some of the most important material properties to consider for optical elements are:

 

  • Transmission versus wavelength
  • Index of refraction
  • Thermal characteristics
  • Mechanical and chemical characteristics
  • Cost

 

There are two instances in which you might need to know more about optical materials. First, you may need to determine the performance of a catalog component in a particular application. Second, you may need specific information when selecting the material for a custom component. The data below is intended to assist in these situations. It is very important to select the best material for your optical component(s).

 

General Optical Glass: Crown Glass, Fire Glass, SF Glass…
Special Glass: Fused Silica, UV Fused Silica, Color Glass, Float Glass…
Laser Product: Nd:YVO4, Nd:YAG, Ti:Sapphire, Cr:YAG, KTP, KDP, KD*P…
Optical Crystal: Sapphire, CaF2, BaF2, MgF2, MgO, Silicon, Ge, ZnSe, ZnS, YAG…
Birefringence Material: YVO4, LiNbO3, Quartz, Calcite, a-BBO, TeO2

 

no = ordinary
ne = extraordinary

 

Material

Refractive Index

Transmission

Thermal Expansion Coefficient (10 -6 /k)

BK7

1.5164 (588nm)

0.33 – 2.1

7.5

Fused Silica

1.4858 (308nm)

0.185 – 2.5

0.54

CaF2

1.399 (5.0µm)

0.17 – 7.8

18.85

Sapphire

1.755 (1.0µm)

0.18 – 4.5

8.4

Quartz

no = 1.5427

ne = 1.5518 (633nm)

0.20 – 2.3

7.07

YVO4

no = 1.9500

ne = 2.1554 (1.3nm)

0.40 – 5.0

a: 4.46

b: 11.37

Calcite

no = 1.9500

ne = 2.1554 (1.3nm)

0.21 – 2.3

a: 24.39

b: 5.68

LiNbO3

no = 2.2863

ne = 2.2027 (633nm)

0.37 – 4.5

a: 16.7

c: 2.0

a-BBO

no = 1.6749

ne = 1.5555 (532nm)

0.19 – 3.5

a: 4.0

c: 36

TeO2

no = 2.261

ne = 2.142 (6332nm)

0.35 – 5.0

 

SF11

1.78472 (588nm)

0.37 – 2.5

6.8

SF14

1.76182 (588nm)

0.42 – 2.0

8.1

Silicon

3.4179 (10µm)

1.20 – 7.0

4.15

Ge

4.003 (10µm)

1.90 – 16

6.1

ZnSe

2.10 (10µm)

0.63 – 18

7.8

ZnS

2.2 (10µm)

0.38 – 14

6.5

LiF

1.39 (500nm)

0.15 – 5.2

37

KBr

1.526 (10µm)

0.28 – 22

43

MgF2

no = 1.3836

ne = 1.3957 (405nm)

0.13 – 7.0

a: 13.7

b: 8.48

YAG

1.8197 (1.0µm)

0.25 – 5.0

6.9

TiO2

no = 2.261

ne = 2.142 (633nm)

0.35 – 5.0