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

A nonlinear optics, cesium phosphomolybdate technology, applied in nonlinear optics, chemical instruments and methods, phosphorus compounds, etc., can solve problems such as nonlinear optical 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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  • 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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Synthesis of cesium phosphomolybdate (Cs 4 Mo 5 P 2 o 22 ) compounds:

[0037] By chemical formula: 2Cs 2 CO 3 +5MoO 3 +2NH 4 h 2 PO 4 =Cs 4 Mo 5 P 2 o 22 +3H 2 O↑+2CO 2 ↑+2NH 3 ↑, prepared by solid phase reaction method:

[0038] 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 again, then put it in the crucible, keep the temperature in the muffle furnace at 480°C for 48 hours, take it out, put it in a mortar and pound it Grind to get Cs 4 Mo 5 P 2 o 22 Compound, the product is subjected to X-ray analysis, the resulting X-ray spectrum an...

Embodiment 2

[0046] According to the reaction formula 2Cs 2 O+5MoO 3 +P 2 o 5 =Cs 4 Mo 5 P 2 o 22 Synthetic Cs 4 Mo 5 P 2 o 22 Compound, specific operation steps are carried out according to embodiment 1:

[0047] Preparation of Cs by pulling method 4 Mo 5 P 2 o 22 the crystal

[0048] The synthesized Cs 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 down to 530°C to obtain a cesium phosphomolybdate melt;

[0049] 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;

[0050] The obtained seed crystal is fixed on the seed crystal rod, and the seed crystal is introduced into the crucible from the top of the crystal growth furnace, so that the seed crystal is extended into the cesium phosphomolybdate melt, and...

Embodiment 3

[0054] Reaction 2Cs 2 CO 3 +5(NH 4 ) 2 MoO 4 +2NH 4 h 2 PO 4 =Cs 4 Mo 5 P 2 o 22 +2CO 2 ↑+12NH 3 ↑+8H 2 O ↑ synthesis of Cs 4 Mo 5 P 2 o 22 Compound, specific operation steps are carried out according to embodiment 1:

[0055] Preparation of Cs by Kyropoulos method 4 Mo 5 P 2 o 22 the crystal

[0056] The synthesized Cs 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 505°C to obtain a cesium phosphomolybdate melt;

[0057] Slowly cool down to room temperature at a rate of 5°C / h, and crystallize to obtain seed crystals;

[0058] Fix the obtained seed crystal on the seed rod, and import the seed crystal into the crucible from the top of the crystal growth furnace, make the seed crystal contact with the surface of cesium phosphomolybdate melt, cool down to 505°C, and cool down at a rate of 5°...

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Abstract

The invention relates to compound cesium phosphomolybdate, cesium phosphomolybdate nonlinear optical crystals, and a preparation method and applications of the compound cesium phosphomolybdate and the cesium phosphomolybdate nonlinear optical crystals. Chemical formula of the compound cesium phosphomolybdate is Cs4Mo5P2O22; chemical formula of the cesium phosphomolybdate nonlinear optical crystals is Cs4Mo5P2O22; molecular weight of the cesium phosphomolybdate nonlinear optical crystals is 1425.28; the cesium phosphomolybdate nonlinear optical crystals belong to orthorhombic system; space group is C2221; cell parameter Z=4; and powder frequency-doubled effect of the cesium phosphomolybdate nonlinear optical crystals is two times of that of KDP (KH2PO4). Growth process of the cesium 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 cesium phosphomolybdate nonlinear optical crystals 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 cesium phosphomolybdate whose chemical formula is Cs 4 Mo 5 P 2 o 22 And cesium phosphomolybdate nonlinear optical crystal, its preparation method and application. 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 development of laser technology. [0003] Nonlinear optic...

Claims

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Application Information

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IPC IPC(8): C30B29/30G02F1/355C01B25/00
Inventor 潘世烈王颖
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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