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Lithium Niobate

Tantalum 09/14/2020

lithium niobate

Lithium Niobate

Recent Progress in Lithium Niobate

This planned special issue of Crystals is the third issue devoted to LiNbO3 (the previous two beings on ‘Lithium Niobate Crystals’ and ‘Thin Films and Nanocrystals’).

LiNbO3 is an all-star material from both the scientific and technological viewpoints and the subject of a great number of publications since its first preparation in 1937.

Due to its excellent electro/acoustic-optical properties, LiNbO3 has been widely used in optoelectronic devices for decades, ranging from optical fibre communications to wireless and micromechanical systems.

Among the latest applications are modulators and filters with lasers on a single LiNbO3 wafer, especially promising in integrated optics.

Recently, the high quality low optical loss source material for waveguides such as lithium niobate on insulator (LNOI) is playing an important role in photonic integrated circuits.

LiNbO3 provides powerful optical components in high-energy laser applications, in terahertz technology and is also the subject of lead-free piezoceramics and nanophotonics.

optical grade lithium tantalate litao3 crystal

The different applications require different forms of LiNbO3 such as bulk, thin-film, nanocrystal and composite.

In this Special Issue, studies are welcomed dealing with different preparation techniques of different forms of LiNbO3, theoretical and experimental investigations of their structure and research on specific developments and novel applications.

LiNbO3, Lithium Niobate Crystals and Wafers

Lithium Niobate (LN) is a ferroelectric material with excellent electro-optic, nonlinear, and piezoelectric properties.

Lithium niobate crystals are important materials for optical waveguides, mobile phones, piezoelectric sensors, optical modulators and various other linear and non-linear optical applications.

Find lithium niobate crystals and wafers for sale at MSE Supplies.

The largest use of Lithium Niobate (LN) is in SAW devices used in telecommunication devices.

When voice communication and data communication are performed, SAW devices such as SAW filters and SAW duplexers are mounted in communication devices as filters for preventing noise and interference. Lithium Niobate (LN) crystals are also used in optical applications.

lithium niobate, LiNbO3

lithium tantalate litao3 crystal substrate

NOTE: It should be taken into account that nx=ny=nz=n for optically isotropic material and nx=ny=no and nz=ne for the uniaxial crystal.

Crystal symmetry: 3m

Density: 4.628 g/cm3

Optical spectral range: 0.4 - 5 mkm

Optical properties of lithium niobate crystals

According to optical absorption spectra the width of the forbidden band of nominally pure congruent and stoichiometric lithium niobate crystals, as well as a series of congruent crystals doped with cations of Mg2+(0.35 wt.%), Zn2+(2.05), B3+(0.12), Gd3+(0.26, 0.44, 0.51), Y3+(0.46), Gd3+(0.23):Mg2+(0.75), Mg2+(0.86):Fe3+(0.0036), Ta5+(1.13):Mg2+(0.01), Y3+(0.24):Mg2+(0.63), Er3+(3.1) is determined.

The photorefractive effect in crystals, their structural and optical homogeneity was studied by photoinduced and Raman scattering methods, laser colonoscopy.

Thin films of lithium niobate

The bulk lithium niobate is an optically transparent material in the range of wavelengths from 0.35 μm to 5 μm where the lattice absorption is observed.

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