Non-linear optical material lead bismuth phosphate crystal

A technology of nonlinear optics and bismuth lead phosphate, applied in the field of nonlinear optical materials and their synthesis

Inactive Publication Date: 2011-06-08
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
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Bismuth lead phosphate compound syn

Method used

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  • Non-linear optical material lead bismuth phosphate crystal
  • Non-linear optical material lead bismuth phosphate crystal
  • Non-linear optical material lead bismuth phosphate crystal

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Embodiment

[0011] Bismuth lead phosphate powder preparation

[0012] According to the molar ratio of Pb:Bi:P is 3:1:3 PbO, Bi 2 o 3 with NH 4 h 2 PO 4 Grind and mix evenly, put it into a Pt crucible, place it in a box-type resistance furnace, and react at 880°C for 24 hours to obtain a pure phase of colorless powder with a yield of 100%.

[0013] Preparation of bismuth lead phosphate single crystal

[0014] PbO, Bi 2 o 3 with NH 4 h 2 PO 4 Grind, mix evenly, put it into a Pt crucible, put it into a box furnace at 300°C for pre-sintering, and grind it. Finally, keep the temperature at 1050°C for 20 hours, then cool down to 600°C at a rate of 3°C per hour, and then drop to 300°C at a rate of 6°C per hour, and finally let it cool to room temperature naturally, and obtain a colorless and transparent crystal at the bottom of the crucible. blocky crystals. This crystal has been carried out single crystal X-ray diffraction crystallographic analysis and knows that it is bismuth lead ...

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Abstract

The invention discloses a non-linear optical material, namely a lead bismuth phosphate crystal, and relates to the field of non-linear optical materials. A chemical formula of lead bismuth phosphate is Pb3Bi (PO4)3; the molecular weight is 2230.98; the lead bismuth phosphate belongs to a cubic crystal system; the space group is I43d; and single-cell parameters, namely alpha, beta and gamma are 90.00 degrees, and Z is equal to 2. The lead bismuth phosphate crystal is prepared by adopting a high-temperature solid-state method. The lead bismuth phosphate has excellent non-linear optical performance; a powder secondary harmonic generation (SHG) coefficient of the lead bismuth phosphate is three times that of potassium dihydrogen phosphate (KDP); and the lead bismuth phosphate crystal can be used for deep water communication of submarines, laser blinding weapons, marine fish detection, optical disk recording, color laser printing, laser projection televisions, and optical computing or optical fiber communication.

Description

technical field [0001] The invention belongs to nonlinear optical material and its synthesis. Background technique [0002] Nonlinear optical crystals, with frequency doubling effect (SHG), have important application value in high-tech fields such as laser frequency conversion, electro-optical modulation, photorefractive information processing, and nonlinear optical imaging. 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 Pb...

Claims

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Application Information

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IPC IPC(8): C30B29/14
Inventor 程文旦张炜龙
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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