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For example
e.g. SHG @1064
SFG @800+267->200
DFG @780-842->10600
OPO @355->460+560+960+1150 etc
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For example
e.g. P-coating
ARC @1064 R<0.25%
ARC @1064 R<0.25% + 532 R<0.5%
BBAR @1064 R<1% + 3÷10 R<5%
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Nonlinear optical crystal AGS (AgGaS2) |
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| (silver thiogallate) |
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| Main properties |
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| Negative uniaxial crystal |
no > ne (at l < 0.497 µm ne > no) |
| Transparency range, µm |
0.47 – 13 |
| Nonlinear coefficient, pm/V |
d36 = 13.9 |
| Symmetry |
Tetragonal, -42m point group |
| Cell parameters, Å |
a=5.757, c=10.311 |
Typical Reflection index |
10.6 µm 5.3 µm |
no=2.3475, ne=2.2918 no=2.3945, ne=2.3406 |
Optical Damage Threshold, MW/cm2 |
1064 nm (t=10 ns) |
350 |
| Walk off angle, ° |
5.3 µm |
0.76 |
| Thermal conductivity k, WM/M°C |
1.5 |
| Band-gap energy at room temperature, eV |
Eg = 2.73 |
| Optical activity ρ = 522deg/mm at isotropic point |
no = ne, l = 0.4974 µm |
Absorption edge in the far-IR on 0.2
transparency level |
0.86 THz; 346 µm |
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| The parameters of optical elements |
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| Orientation accuracy, arc min |
< 30 |
| Parallelism, arc sec |
< 30 |
| Flatness |
546 nm |
l/4 |
| Surface quality, scratch/dig |
30/20 |
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| Application |
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- Efficient frequency doubling for mid-IR radiation.
- Optical parametric oscilation and amplification, Different frequency generation to mid-infrared regions up to 12 µm
- Optical narrow-band filters in the region near isotropical point (0.4974 µm at 300 K)
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We are able to provide suitable Anti-reflection / Protective, etc. coatings tailored to customer's specifications, reflectivity curves are applied upon request. |
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