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Materials Information
 

Optical Materials

  

DeLn Optics fabricate a wide variety of optical components with various optical materials which including glass and crystal. In order to assist customer know more about optical materials,the data in the following show the most important material properties to consider for an optical elements.

  

Some of the materials that DeLn Optics uses include:

 

General optical glass:  Schott Glass,Ohara Glass

Special Glass:              Fused Silica,Color Glass, Float Glass,Zerodur¡­

Optical Crystal:             Sapphire,CaF2,BaF2,NaCl,MgO¡­

                                     Quartz,Silicon,Ge,ZnSe,Zns¡­

                                     YVO4,LiNbO3,KTP,YAG¡­

 

Materials

Refractive Index

Transmission Range(nm) 

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

0.5

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

Quartz

no=1.5427 ne=1.5518(633nm)

0.200-2.3

6.88||c;12.38||a



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