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K3Sr3Li2Al4B6O<20>F compound, nonlinear optical crystal, and preparation method and purpose of nonlinear optical crystal

A nonlinear optics, 1.k3sr3li2al4b6o20f technology, applied in the field of manufacturing nonlinear optical devices, can solve the problems of limited output power and beam quality, small birefringence, large birefringence, etc.

Inactive Publication Date: 2017-06-20
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the birefringence of LBO is relatively small, and the quadrupling output of 1064nm wavelength laser cannot be realized; the birefringence of BBO is relatively large, and there is a photorefractive effect when used for quadrupling output of 1064nm wavelength laser, which limits its Output power and beam quality; while CLBO is extremely deliquescent and difficult to achieve commercial applications; KBBF is difficult to obtain crystals with a large c-thickness due to its serious layered growth habit

Method used

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  • K3Sr3Li2Al4B6O&lt;20&gt;F compound, nonlinear optical crystal, and preparation method and purpose of nonlinear optical crystal
  • K3Sr3Li2Al4B6O&lt;20&gt;F compound, nonlinear optical crystal, and preparation method and purpose of nonlinear optical crystal
  • K3Sr3Li2Al4B6O&lt;20&gt;F compound, nonlinear optical crystal, and preparation method and purpose of nonlinear optical crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Adopt solid phase reaction method, reaction equation is as follows:

[0045] (a) 1.5K 2 CO 3 +3SrCO 3 +0.5Li 2 CO 3 +2Al 2 o 3 +6H 3 BO 3 +LiF

[0046] =K 3 Sr 3 Li 2 al 4 B 6 o 20 F+2CO 2 ↑+9H 2 O↑+3O 2 ↑

[0047] The amount of the above three reagents: K 2 CO 320.73g (0.15mol), SrCO 3 44.28g (0.30mol), Li 2 CO 3 3.69g (0.05mol), Al 2 o 3 20.39g (0.20mol), LiF 2.59g (0.10mol), and H 3 BO 3 37.08 g (0.6 mol).

[0048] The specific operation steps are: weigh the reagents according to the above dosages, put them into a mortar, mix and grind them evenly, then put them into a corundum ceramic crucible, compact them, put them into a muffle furnace, and heat them at 10°C / Heat up to 450°C at a rate of 1 hour, then heat-preserve and sinter for more than 12 hours. After cooling down to room temperature, take it out and grind it evenly. Phase K 3 Sr 3 Li 2 al 4 B 6 o 20 F compound.

[0049] Such as figure 2 As shown, the powder X-ray diff...

Embodiment 2

[0051] Preparation of powdered K 3 Sr 3 Li 2 al 4 B 6 o 20 F compound

[0052] Adopt solid phase reaction method, reaction equation is as follows:

[0053] (b) 11KNO 3 +12Sr(OH) 2 +8LiOH·H 2 O+8Al 2 o 3 +23H 3 BO 3 +KBF 4

[0054] = 4K 3 Sr 3 Li 2 al 4 B 6 o 20 F+11NO 2 ↑+58.5H 2 O↑+2.75O 2 ↑

[0055] The dosage of the above three reagents:

[0056] 0.11mol KNO 3 , 0.12mol Sr(OH) 2 , 0.08mol LiOH·H 2 O, 0.08mol Al 2 o 3 , 0.23molH 3 BO 3 , 0.01mol KBF 4 .

[0057] The specific operation steps are: weigh the reagents according to the above dosage, put them into a mortar, mix and grind them evenly, then put them into a corundum ceramic crucible, compact them, put them into a muffle furnace, and heat them at 200 ° C / Heat up to 650°C at a rate of 1 hour, then heat-preserve and sinter for more than 12 hours, take it out and grind it evenly after cooling down to room temperature, then raise the temperature to 800°C at a rate of 200°C / hour and sint...

Embodiment 3

[0059] Preparation of powdered K 3 Sr 3 Li 2 al 4 B 6 o 20 F compound

[0060] Adopt solid phase reaction method, reaction equation is as follows:

[0061] (c) 2KHCO 3 +3Sr(NO 3 ) 2 +Li 2 CO 3 +2Al 2 o 3 +6H 3 BO 3 +KF

[0062] = K 3 Sr 3 Li 2 al 4 B 6 o 20 F+3CO 2 ↑+10H 2 O↑+6NO 2 ↑+1.5O 2 ↑.

[0063] The dosage of the above three reagents:

[0064] 0.2mol KHCO 3 , 0.3mol Sr(NO 3 ) 2 , 0.1mol Li 2 CO 3 , 0.2mol Al 2 o 3 , 0.6mol H 3 BO 3 , 0.1mol KF.

[0065] The specific operation steps are: weigh the reagents according to the above-mentioned doses, put them into a mortar, mix and grind them evenly, then put them into a corundum ceramic crucible, compact them, put them into a muffle furnace, and heat them at 100 ° C / Heat up to 550°C at a rate of 1 hour, then heat-preserve and sinter for more than 12 hours, take it out and grind it evenly after cooling down to room temperature, then raise the temperature to 700°C at a rate of 100°C / hour ...

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Abstract

The invention relates to a K3Sr3Li2Al4B6O20F compound, a K3Sr3Li2Al4B6O20F nonlinear optical crystal, and a preparation method and a purpose of the nonlinear optical crystal. The nonlinear optical crystal has the benefical effects of high growth speed, low cost and the like; yhe obtained crystal has the advantages of short ultraviolet absorption stop edge, great nonlinear optical effect, stable physical chemical performance, good mechanical performance, processing simplicity and the like; the crystal can be used for manufacturing a nonlinear optical device;.the nonlinear optical device manufactured by the nonlinear optical crystal can be used in a plurality of military and civil high-tech fields, such as laser blind weapons, optical disc recording, laser projection televisions, light calculation and optical fiber communication.

Description

technical field [0001] The present invention relates to a K 3 Sr 3 Li 2 al 4 B 6 o 20 F compound, K 3 Sr 3 Li 2 al 4 B 6 o 20 F nonlinear optical crystal, K 3 Sr 3 Li 2 al 4 B 6 o 20 F crystal preparation method and K 3 Sr 3 Li 2 al 4 B 6 o 20 F crystals are used to make nonlinear optical devices. [0002] technical background [0003] The nonlinear optical effect of crystal refers to such an effect: when a beam of laser light with a certain polarization direction passes through a nonlinear optical crystal in a certain direction, the frequency of the beam will change. Crystals with nonlinear optical effects are called nonlinear optical crystals. Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up-down frequency converters, and optical parametric oscillators can be made. The all-solid-state laser using nonlinear optical crystals for frequency conversion is a development direction of lasers in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/12C30B28/02C30B9/08G02F1/355C01B35/10
CPCC30B29/12C01B35/10C30B9/08C30B28/02G02F1/3551
Inventor 罗军华赵三根
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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