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Compound rubidium phosphomolybdate, rubidium phosphomolybdate nonlinear optical crystals, and preparation method and applications of compound rubidium phosphomolybdate and rubidium phosphomolybdate nonlinear optical crystals

A nonlinear optics, rubidium phosphomolybdate technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve problems such as nonlinear optics crystals that have not yet been obtained

Active Publication Date: 2014-03-12
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main nonlinear optical materials are: KDP (KH 2 PO 4 ), BBO (β-BaB 2 o 4 ), LBO (LiB 3 o 5 ), etc., but due to various reasons, various nonlinear optical crystals applicable to all wave bands have not yet been obtained

Method used

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  • Compound rubidium phosphomolybdate, rubidium phosphomolybdate nonlinear optical crystals, and preparation method and applications of compound rubidium phosphomolybdate and rubidium phosphomolybdate nonlinear optical crystals
  • Compound rubidium phosphomolybdate, rubidium phosphomolybdate nonlinear optical crystals, and preparation method and applications of compound rubidium phosphomolybdate and rubidium phosphomolybdate nonlinear optical crystals
  • Compound rubidium phosphomolybdate, rubidium phosphomolybdate nonlinear optical crystals, and preparation method and applications of compound rubidium phosphomolybdate and rubidium phosphomolybdate nonlinear optical crystals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] According to the chemical formula: 2Rb 2 CO 3 +5MoO 3 +2NH 4 h 2 PO 4 =Rb 4 Mo 5 P 2 o 22 +3H 2 O↑+2CO 2 ↑+2NH 3 ↑, Rubidium phosphomolybdate (Rb 4 Mo 5 P 2 o 22 ) compound:

[0037] Weigh the raw materials according to the proportion of the reaction formula and put them into a mortar, mix and grind them carefully, put them into a corundum crucible with an opening of Φ400mm×400mm, press them tightly, put them into a muffle furnace, slowly raise the temperature to 400°C, and keep the temperature constant for 24 hours , take out the crucible after cooling, at this time the sample is relatively loose, then take out the sample and grind it evenly, then put it in the crucible, keep it in the muffle furnace at a temperature of 500°C for 48 hours, take it out, put it in a mortar and grind it Grind to get Rb 4 Mo 5 P 2 o 22 compound, the product is subjected to X-ray analysis, and the resulting X-ray spectrum and Rb 4 Mo 5 P 2 o 22 The X-ray spectra of s...

Embodiment 2

[0045] According to the reaction formula 2Rb 2 O+5MoO 3 +P 2 o 5 =Rb 4 Mo 5 P 2 o 22 Synthetic Rb 4 Mo 5 P 2 o 22 Compound, specific operation steps are carried out according to embodiment 1;

[0046] Preparation of Rb by pulling method 4 Mo 5 P 2 o 22 the crystal

[0047] The synthesized Rb 4 Mo 5 P 2 o 22 Put the compound into a Φ90mm×90mm open platinum crucible, then put the crucible into a crystal growth furnace, raise the temperature to 650°C, keep the temperature for 10 hours, then cool it down to 540°C to obtain a rubidium phosphomolybdate compound melt;

[0048] Slowly cool down to room temperature at a rate of 0.5°C / h, and crystallize to obtain seed crystals;

[0049]Rb 4 Mo 5 P 2 o 22 The seed crystal is fixed on the lower end of the seed rod with a platinum wire, and the seed crystal is introduced into the crucible from the small hole on the top of the furnace, so that the seed crystal is in contact with the liquid surface of the rubidium pho...

Embodiment 3

[0053] According to the reaction formula 2Rb 2 CO 3 +5(NH 4 ) 2 MoO 4 +2NH 4 h 2 PO 4 =Rb 4 Mo 5 P 2 o 22 +2CO 2 ↑+12NH 3 ↑+8H 2 O ↑ synthesis of Rb 4 Mo 5 P 2 o 22 Compound, specific operation steps are carried out according to embodiment 1;

[0054] Preparation of Rb by Kyropoulos method 4 Mo 5 P 2 o 22 the crystal

[0055] The synthesized Rb 4 Mo 5 P 2 o 22 Put the compound into a Φ80mm×80mm open platinum crucible, then put the crucible into a crystal growth furnace, raise the temperature to 650°C, keep the temperature for 4 hours, then cool down to 520°C to obtain a rubidium phosphomolybdate compound melt;

[0056] Slowly cool down to room temperature at a rate of 1°C / h, and use the platinum wire suspension method to obtain small crystals as seed crystals during the cooling;

[0057] Rb 4 Mo 5 P 2 o 22 The seed crystal is fixed on the lower end of the seed rod with a platinum wire, and the seed crystal is introduced into the crucible from the...

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Abstract

The invention relates to compound rubidium phosphomolybdate, rubidium phosphomolybdate nonlinear optical crystals, and a preparation method and applications of the compound rubidium phosphomolybdate and the rubidium phosphomolybdate nonlinear optical crystals. Chemical formula of the compound rubidium phosphomolybdate is Rb4Mo5P2O22; the compound rubidium phosphomolybdate is prepared via solid phase method; chemical formula of the rubidium phosphomolybdate nonlinear optical crystals is Rb4Mo5P2O22; the rubidium phosphomolybdate nonlinear optical crystals belong to orthorhombic system; space group is C2221; cell parameter Z=4; powder frequency-doubled effect of the rubidium phosphomolybdate nonlinear optical crystals is one time of that of KDP (KH2PO4); and ultraviolet transmittance wave band cutoff wavelength is 300nm. Growth process of the rubidium phosphomolybdate nonlinear optical crystals possesses advantages such as simple operation, low cost, low toxicity, short growth cycle, and stable physico-chemical properties; and used reagents are inorganic reagents. The rubidium phosphomolybdate nonlinear optical crystals are suitable for preparation of nonlinear optical elements, and can be widely used in the nonlinear optical elements such as double frequency conventors and optical parametric oscillators.

Description

technical field [0001] The invention relates to a compound rubidium phosphomolybdate, the chemical formula is Rb 4 Mo 5 P 2 o 22 and rubidium phosphomolybdate nonlinear optical crystal, its preparation method and the application of the nonlinear optical device made of the crystal. Background technique [0002] As a high-intensity, directional coherent monochromatic light source, laser is widely used in scientific research, industry, transportation, national defense, medical and health and other related fields. However, the laser wave bands directly output by various lasers at present are limited, and there are still blank laser wave bands from the ultraviolet band to the infrared band. Due to the particularity of the laser generation mechanism, it is impossible to find a practical laser medium for every wavelength. Therefore, the use of nonlinear optical crystals for frequency conversion to obtain various laser sources with wide tuning has become a frontier topic in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B15/00C30B11/00C30B17/00G02F1/355
Inventor 潘世烈王颖
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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