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TeO2 Crystal

TeO2  Crystal (Tellurium Oxide)

Density: 6 g/cm3
Optical spectral range: 0.35 – 5.00 m
Mohs: 4.6
Melting point: 733°C
 
Elastic constants cij (10
10 Pa):

5.59
5.13
2.17
0
0
0
5.13
5.59
2.17
0
0
0
2.17
2.17
10.56
0
0
0
0
0
0
2.67
0
0
0
0
0
0
2.67
0
0
0
0
0
0
6.62

Photoelastic constants pij:

0.0074
0.1870
0.3400
0
0
0
0.1870
0.0074
0.3400
0
0
0
0.0905
0.0905
0.2400
0
0
0
0
0
0
-0.1700
0
0
0
0
0
0
-0.1700
0
0
0
0
0
0
-0.0463

Acoustic velocity:

Orientation
Polarization
v (km/s)
[100]
[100], L
3.051
[100]
[010], S
3.317
[100]
[001], S
2.100
[001]
[001], L
4.202
[001]
arb, S
2.104
[110]
[110], L
4.663
[110]
[1-10], S
0.616
[110]
[001], S
2.100
[101]
[-101], S
2.101

Indices of refraction:

(μm)
nx
ny
nz
0.4047
2.4315
2.4315
2.6167
0.4358
2.3834
2.3834
2.5583
0.4678
2.3478
2.3478
2.5164
0.4800
2.3366
2.3366
2.5036
0.5086
2.3150
2.3150
2.4779
0.5461
2.2931
2.2931
2.4520
0.5893
2.2738
2.2738
2.4295
0.6328
2.2597
2.2597
2.4119
0.6438
2.2562
2.2562
2.4086
0.6900
2.2450
2.2450
2.3955
0.8000
2.2260
2.2260
2.3730
1.0000
2.2080
2.2080
2.3520

LNG offers TeO2 crystal components with special shape: prisms, cube, bench and so on. LNG's TeO2 crystal and components can completely fit the requirement of acousto-optic modulators, deflectors and other optical parts. The best ones are: 10 arc sec for parallism, λ/10@633nm for flatness, 5 arc min for perpendicularity, 10-5 for surface finish and better than 1 min for tolerance of angle.

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