Crystal Structure:
Trigonal,Space Group R3c
Orthorhombic,Point Group mm²
Orthorhombic,Point Group mm²
Trigonal,Space Group R3c

Transparency Range:
189-3500nm
350-4500nm
160-2600nm
420-5200nm

Cell Parameters:
A=b=12.532 Å
C=12.717 Å
A=6.404 Å
B=10.616 Å
C=12.814 Å
A=8.44731Å
B=7.3788 Å
C=5.1395 Å
a=0.515Å
c=13.863Å

Melting Point:
1095+/-5℃
1172℃ Incongruent
834℃
1255+/-5℃

Curie Point:
925+/-5℃
936℃
5
1140+/-5℃

Optical Homogeneity:
△n=10-6/cm
△n=10-6/cm
△n=10-6/cm
△n=5*10-5/cm

Mohs Hardness:
4.5
5
6
5

Density:
3.85g/cm³
3.01g/cm³
2.47g/cm³
4.64g/cm³

Thermal Conductivity:
ˆC,0.012W/m/k
‖C,0.016W/m/k
0.03 W/m/k
0.035 W/m/k
0.046 W/m/k

Phase-matchable SHG Range:
205-1750nm
1000-2000nm
800-2000nm
1100-3000nm

Absorption Coefficient:
<0.1%/cm@1064nm <1%/cm@1064nm and 532nm <=1%/cm@1064nm <0.1%/cm@1064nm NLO coefficients: d21=2.2pm/V d31=0.08pm/V d22=2.2pm/V d31=1.95pm/V d32=3.90pm/V d33=15.3pm/V d24=3.90pm/V d15=1.95pm/V d21=0.67pm/V d22=0.04pm/V d23=0.85pm/V d34=0.85pm/V d16=0.67pm/ d21=d22=d16=2.6pm/V d31=d32=d24=4.6pm/V d33=25.6 pm/V Damage Threshold@1064nm: 12.9J/cm² 9.9GW/ cm² 6.0J/cm² 4.6GW/ cm² 24.6J/cm² 18.9GW/ cm² 200GW/ cm² Refractive Indices@1064nm@532nm: Ne=1.5425 No=1.6551 Ne=1.5555 No=1.6749 Nx=1.73991 Ny=1.74802 Nz=1.82956 Nx=1.77903 Ny=1.79002 Nz=1.88628 Nx=1.56447 Ny=1.59050 Nz=1.60538 Nx=1.57842 Ny=1.60650 Nz=1.6215 Ne=2.23216 No=2.15600 Ne=2.32309 No=2.23415 Crystal type : potassium titanyl phosphate (KTiOPO4 KTP), beta barium borate (BaB2O4, BBO), lithium niobate (LiNbO3) Technical characteristics : optical