AgGaS2 - Silver Thiogallate
Advantages of AgGaS2:
A wider tranparency
range (a short-wave transmission edge at 0.46 and 0.60 µm respectively)
A lower threshold for parametric oscillation (10W as
compared to several hundred watts for proustite)
A higher optical damage threshold (40% for surface
and approximately 20 times for volume at 1.06µm pumping)
A significantly lower temperature dependence of
refractive indices which permits operation at higher power
densities without self-focusing, resolution/efficiency decrease
and phase matching losses
Parameters of Optical Elements
| System, point group | tetragonal, 4-2m |
| Lattice parameters, A | a: 10.305, c: 5.757 |
| Hygroscopic | No |
| Density (g/cm3) | 4.56 |
| Microhardness (kg/mm2) | 330 |
| Transparency range (µ m) | 0.46 - 13 |
| Refractive indices | n(o) 2.5205(0.7µm)
2.3486(10.5µm) n(e) 2.4711 2.3486 |
| Birefringence(0.7 - 12µm) | 0.05 - 0.055 |
| Nonlinear susceptibility, pm/V | d(36) - 18, d(14) - 54 |
| Electro-optical coefficients, pm/V | r(63) - 3.0, r(41) - 4.0 |
Available Sizes
Up to 10 x 10 x 15mm3, orientation and size according to customer’s request
Applications
For SHG of CO2
lasers
For up-conversion of CO2
laser radiation image into near-IR or visible region using
Nd:YAG, ruby or dye lasers with efficiency up to 30%
For differential frequencies generation (DFG) in the
middle IR region from 4.0 - 18æ
m
For tunable solid state lasers using OPO, pumped by
Nd:YAG and other lasers operating in 1.2 - 10µm region with efficiency of 0.1 - 10%
For optical narrow-band filters in the region near
isotropical point (0.4974µm
at 300K), transmission band being tuned at temperature variation
Click here to request a quote.
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