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Phosphomolybdate compound, phosphomolybdate nonlinear optical crystal and preparation method and use

A nonlinear optics and crystal technology, applied in the field of phosphomolybdate compounds and phosphomolybdate nonlinear optical crystals, can solve problems such as gray traces and application limitations

Inactive Publication Date: 2017-05-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the KTP crystal is prone to damage such as "gray trace" under high power, its application is limited

Method used

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  • Phosphomolybdate compound, phosphomolybdate nonlinear optical crystal and preparation method and use
  • Phosphomolybdate compound, phosphomolybdate nonlinear optical crystal and preparation method and use
  • Phosphomolybdate compound, phosphomolybdate nonlinear optical crystal and preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] synthetic K 9 P 4 Mo 4 HO 27 The feeding amount of the reagent used in the compound:

[0034] NH 4 h 2 PO 4 34.5 grams (0.3 mole)

[0035] MoO 57.6 g (0.4 mole)

[0036] K 2 HPO 4 17.4 grams (0.1 mole)

[0037] K 2 CO 3 48.3 g (0.35 mole)

[0038] The specific operation steps are as follows:

[0039] Accurately weigh in the operation box according to the above mass, put into the agate mortar, mix well and grind carefully, then put into Put it into a covered platinum crucible, compact it, put it into a muffle furnace, and slowly heat up to 400°C for sintering for 48 hours. The heating rate must be slow at the beginning to prevent the change of the proportion due to decomposition, so that the solid phase reaction can fully proceed. , after cooling down to room temperature, take it out and grind it in the operation box, then put it in a crucible for compaction, put it in a muffle furnace, burn it at 400°C to constant weight as the reaction end point, and...

Embodiment 2

[0042] synthetic K 4 Rb 5 P 4 Mo 4 HO 27 The feeding amount of the reagent used in the compound:

[0043] NH 4 h 2 PO 4 34.5 grams (0.3 mole)

[0044] MoO 57.6 g (0.4 mole)

[0045] K 2 HPO 4 17.4 grams (0.1 mole)

[0046] K 2 CO 3 13.8 grams (0.1 mole)

[0047] Rb 2 CO 3 57.75 g (0.25 mole) compound

[0048] The specific operation steps are as follows:

[0049] Accurately weigh in the operation box according to the above mass, put into the agate mortar, mix well and grind carefully, then put into Put it into a covered platinum crucible, compact it, put it into a muffle furnace, and slowly heat up to 400°C for sintering for 48 hours. The heating rate must be slow at the beginning to prevent the change of the proportion due to decomposition, so that the solid phase reaction can fully proceed. , after cooling down to room temperature, take it out and grind it in the operation box, then put it in a crucible for compaction, put it in a muffle furnace, burn ...

Embodiment 3-9

[0051] Example 3-9, K 9 P 4 Mo 4 HO 27 Examples of Nonlinear Optics Crystal Growth:

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Abstract

A phosphomolybdate has the molecular formula of K4M5P4Mo4HO27, and has the powder frequency-doubling intensity the same as that of KDP; when M is K, the phosphomolybdate is potassium hydrogen phosphomolybdate, the crystal belongs to a tetragonal system, the space group is I-4c2, unit cell parameters comprise a=9.670 angstroms, c=29.335 angstroms, alpha=beta=gamma=90 DEG and Z=4, and the unit cell volume is V=2743.1 cubic angstroms; when M is Rb, the phosphomolybdate is rubidium potassium hydrogen phosphomolybdate, the crystal also belongs to a tetragonal system, the space group is I-4c2, unit cell parameters comprise a=9.768 angstroms, c=29.635 angstroms, alpha=beta=gamma=90 DEG and Z=4, and the unit cell volume is V=2827.7 cubic angstroms; the two crystals are both grown by a fluxing agent spontaneous nucleation method or a fluxing agent top seed crystal method; the two crystals both have the nonlinear optical effect, and are incongruent melting compounds; and the two crystals as nonlinear optical crystals from infrared band to ultraviolet band can be used for preparation of a laser output frequency conversion laser device or used for preparation of a generator for generating a second, third, fourth or fifth harmonic generation harmonic to a laser beam with the wavelength of 1064 nm.

Description

technical field [0001] The invention relates to an optoelectronic functional material, a growth method and an application, in particular to a phosphomolybdate compound, a phosphomolybdate nonlinear optical crystal, a preparation method and an application. Background technique [0002] Nonlinear optical frequency conversion crystals are mainly used in laser frequency doubling, sum frequency, difference frequency, multiple frequency doubling, optical parametric oscillation and optical parametric amplification, etc., thus broadening the range of laser radiation wavelengths and opening up new laser light sources. Fields, such as laser technology, atmospheric monitoring, national defense, etc., have important application value. After decades of exploration and research, nonlinear optical crystal materials have achieved fruitful results, especially the research on laser frequency conversion crystals is more in-depth. Many nonlinear optical crystals with excellent performance have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355C30B29/32C01B25/16C30B9/12
Inventor 罗思扬林哲帅陈创天
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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