Formula LiNbO3
Growth method Czochralski method
Max. sizes, (mm) Ø76.2
Transmission range, (µm)
(Thickness 1 mm)
0.4 – 5.0
Structure Trigonal
Density (g/cm3) 4.64
Melting point (°C) 1253
Hardness (Mohs) 5
Thermal expansion coefficient (10-6/K) Parallel c-axis: 15.4
Parallel a-axis: 7.5
Thermal conductivity (W m-1 K-1) 38
Thermal optical coefficient (10-6/K) dno/dT: -0.87
dne/dT: 39.07
Wavelength (µm)
Refractive index no
Refractive index ne
0.633
1.064
1.30
2.286
2.232
2.220
2.203
2.156
2.146
Absorption coefficient (cm-1) 0.1 at 1.064 µm

Lithium Niobate for VIS and IR-range