TeO2 Crystal Boule

TeO2 is an excellent ascousto-optic (AO) crystal with high AO figure of merit, birefringence, good optical rotation and slow propagation velocity along [110] direction. The resolution of AO devices made of TeO2 crystals will increase several levels than others. It is an ideal single crystal material for preparation of AO rotators, modulators, resonators, tuning filters and other AO devices.

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Typical Specifications

Material

Type

Diameter

Growth direction

Remarks

TeO2 Crystal

Optical Grade

2”/3”/4”

<110>

Other specifications are available on request

Basic properties

Crystal Structure

Tetragonal

Point Group

422

Lattice Parameter (nm)

a   0.4810
c   0.7613

Density

5.99 g/cm3

Melting Point

730°C

Mohs Hardness

4.5

Transparency Range (nm)

350 ~ 500

Gradient of Refractive Index

≤ 5

Refractive Index

no = 2.260
n3  = 2.142

Transmittivity

70%@632.8nm

Phase Velocity (m/s)

616

Photo-elastic Coefficient

P11=0.074   P13=0.340  

P31=0.091   P33=0.240

Figure of Merit ( 10-18S3)/g

M2 793