Nonlinear optical crystal vanadium cadmium tellurite

Abstract

The invention relates to non-linear optical crystal, in particular to tellurous acid vanadium cadmium, which belongs to the non-linear optical material and the synthesis thereof. The chemical formula of the crystal is Cd4V2Te3O15; the molecular weight is 1174.28; the crystal belongs to the orthohombic system; the space group is P212121; the unit cell parameters are: a is equal to 1174.28, b is equal to 16.0478(11), c is equal to 16.2349(11), alpha is equal to 90 DEG, beta is equal to 90 DEG, gamma is equal to 90 DEG, V is equal to 1406.70(17)3, and Z is equal to 4. The crystal is prepared by adopting a high temperature solid-state method. The tellurous acid vanadium cadmium (Cd4V2Te3O15) has excellent non-linear optical property, and the powder SHG coefficient is equivalent to KDP coefficient.

Description

technical field The invention belongs to nonlinear optical material and its synthesis. Background technique Nonlinear optical crystals, with frequency doubling effect (SHG), have important application value in high-tech fields such as laser frequency conversion, electro-optical modulation, and photorefractive information processing. Nonlinear optical materials are used in modern science and technology, especially in several military and civilian high-tech fields, such as submarine deep-water communication, laser blinding weapons, marine fish detection, optical disc recording, color laser printing, laser projection TV, optical computing and Optical fiber communication, etc., have a series of important applications. The nonlinear optical crystals currently used in practice include LiB 3 o 5 (LBO), β-BaB 2 o 4 (BBO), KH 2 PO 4 (KDP), KTiOPO 4 (KTP), LiNbO 3 (LNO) and BaTiO 3 (BTO) and so on. Recent studies have shown that the combination of Se(IV) and Te(IV) containi...

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