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.
The TeO2 crystal can be used in the field of astronomy, laser
publishing, laser recorder and so on.The application filed of TeO2
crystal
is huge. We can provide TeO2 crystal at size of 120 X 80 X 40mm3 on
all direction,
as well as cylinder or cuboid shape single crystals
Physica Properties | |
Crystal Structure | Tetragonal |
Point Group | 422 |
Lattice Parameter )nm) | a 0.4810
c 0.7613 |
Density | 5.99 g/cm3 |
Melting Point | 730℃ |
Mohs Hardness | 4.5 |
Transparency Range (nm) | 350 ~ 500 |
Gradient of Refractive Index(?0-15)/cm | ≤ 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( ?0-18S3)/g | M2 793 |
| |
| sound velocitykm/sec) | 0.617 for shear wave along <110>
4.26 for longitudinal wave along <001> |
| Sound and light quality factors (10-18 sec3/g) | 1200 for shear mode along <110>
34.5for longitudinal mode along <001>
|
Introduction
An AOM usual chooses the deflected beam as the one that is used in
the optical system because it can be switched on and off with high
extinction ratio and the intensity can be varied from zero to more
than 85% of the incident beam.
Principal applications for AOMs are pre-press, laser imaging and
displays, switching in telecom fibers, laser and research.
Acousto-optic modulators (AOMs) are used in the generation of
Q-switches in solid-state lasers, cavity evacuation of solid-state
lasers, pulse selectors, laser printers, etc. Acousto-optic
deflectors (AOD) are used in scanners, laser tweezers, RGB systems
for laser projectors, laser scanning microscopy and profilometry.
Acousto-optic filters (AOTF) are used in the production of fast
scanning spectrometers, multispectral imaging, fiber optic
communications, spectral polarimeters and fluorescence
spectrometers.
Characteristics
High speed of modulation, high diffraction efficiency, high
extinction ratio, small dimension and so on
