Single Crystals: Lithium Niobate LiNbO3 (LNB)

Single Crystals: Lithium Niobate LiNbO3 (LNB)


Single Crystals: Lithium Niobate LiNbO3 (LNB)

Lithium Niobate (LiNbO3 or LNB) is a single crystal material that belongs to the family of complex oxide crystals. As a single crystal, it is composed of a single crystal with a regular arrangement of atoms.

Single crystals like lithium niobate have unique and ordered atomic structures, which give them unique physical properties such as piezoelectricity, electro-optic, and nonlinear optical properties. These properties make lithium niobate useful in various applications, such as in optoelectronics, acousto-optics, and telecommunications.

In particular, lithium niobate has attracted interest due to its excellent electro-optic properties. Electro-optic materials change their refractive index in response to an applied electric field, and lithium niobate has a high electro-optic coefficient, making it suitable for use in various electro-optic devices such as modulators, switches, and tunable filters.

Lithium niobate is also used in acousto-optic applications, where sound waves are used to modulate light. In this application, lithium niobate's piezoelectric properties allow it to convert electrical signals into acoustic waves, which can then be used to modulate light.

Lithium niobate is also a promising material for use in telecommunications, particularly in optical signal processing and transmission. Its nonlinear optical properties make it suitable for use in frequency doubling, parametric amplification, and other nonlinear optical processes.

Material LNB LTA
Transparency range, µm 0.4 - 5 0.4 - 5
Point group 3m 3m
Space group R3c R3c
Lattice parameters (hexagonal), Å a = 5.148, c = 13.863 a = 5.154, c = 13.784
Density, g/cm3 4.64 7.45
Mohs hardness 5 5.5
Refractive indexes : no = 2.28647, ne = 2.20240 (at 0.633 µm) no = 2.183, ne = 2.188 (at 0.6 µm)
no = 2.2273, ne = 2.1515 (at 1.1523 µm) no = 2.131, ne = 2.134 (at 1.2 µm)
Non-linear coefficient at 1.06 µm, pm/V d22 = 5.6, d31 = -11.6, d33 = 8.6 d22 = 2, d31 = -1, d33 = -21
Electroptical coefficient at 0.63 µm, pm/V r31 = 8.6, r22 = 3.4, r33 = 30.8, r51 = 28 r13 = 8, r22 = -0.2, r33 = 30

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