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K3YB6O12 compound, K3YB6O12 nonlinear optical crystal and preparation methods and applications thereof

A technology of K3YB6O12 and nonlinear optics, which is applied in the field of K3YB6O12 compounds, can solve the problems of inability to produce effective frequency-doubling output, limitation of effective frequency-doubling wavelength, inability to generate harmonic light, etc., and achieves easy processing and storage, stable physical and chemical properties, and low cost. low effect

Inactive Publication Date: 2013-06-26
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, the effective frequency doubling wavelengths of these three crystals are limited in the ultraviolet spectral region.
For BBO it is due to (1)(B 3 o 6 ) group has a large conjugated π orbital characteristic, which redshifts the band gap of the group, which leads to the absorption edge of the BBO crystal at 189nm; (2) limited by the ultraviolet absorption edge, the crystal cannot produce a Harmonic light; (3) planar (B 3 o 6 ) group leads to the birefringence Δn≈0.12 of the BBO crystal, and the large birefringence makes the acceptance angle Δθ=0.45mra of the BBO crystal at the quadrupling frequency, which is too small for practical devices
For LBO, because the birefringence is too small, phase matching cannot be achieved in a shorter wavelength band, so effective frequency multiplication output cannot be generated.

Method used

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  • K3YB6O12 compound, K3YB6O12 nonlinear optical crystal and preparation methods and applications thereof
  • K3YB6O12 compound, K3YB6O12 nonlinear optical crystal and preparation methods and applications thereof
  • K3YB6O12 compound, K3YB6O12 nonlinear optical crystal and preparation methods and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, prepare powdery K 3 YB 6 o 12 compound.

[0039] Adopt solid phase reaction method, reaction equation is as follows:

[0040] 3K 2 CO 3 +Y 2 OX+6B 2 o 3 = 2K 3 YB 6 o 12 +3CO 2 ↑

[0041] The amount of the above three reagents: K 2 CO 3 : 4.146 grams (0.03mol); Y 2 o 3 : 2.258 grams (0.01mol); B 2 o 3 : 4.177 g (0.06 mol).

[0042] The specific operation steps are: Weigh the reagents according to the above dosage, put them into the mortar, mix and grind carefully, and then put them into Put it into a platinum crucible with an open opening, compact it, put it into a muffle furnace, raise the temperature to 500°C at a rate of 30°C / h and keep the temperature constant for 24h, take out the crucible after cooling, at this time the sample is loose, take out the sample and grind it again evenly , and then placed in a crucible for compaction, sintered in a muffle furnace at 750°C for 120 hours, taken out and ground for 1 or 2 times in the midd...

Embodiment 2

[0043] Embodiment 2, prepare powdery K 3 YB 6 o 12 compound.

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

[0045] 12KNO 3 +2Y 2 o 3 +12B 2 o 3 = 4K 3 YB 6 o 12 +12NO 2 ↑+3O 2 ↑

[0046] The dosage of the above three reagents: KNO 3 : 12.132 grams (0.12mol); Y 2 o 3 : 4.516 grams (0.02mol); B 2 o 3 : 8.354 g (0.12 mol).

[0047] The specific operation steps are: Weigh the reagents according to the above dosage, put them into the mortar, mix and grind carefully, and then put them into Put it into a platinum crucible with an open opening, compact it, put it into a muffle furnace, raise the temperature to 500°C at a rate of 20°C / h and keep the temperature constant for 10h, take out the crucible after cooling, at this time the sample is loose, take out the sample and grind it again evenly , and then placed in a crucible for compaction, sintered in a muffle furnace at 750 ° C for 80 hours, taken out midway and ground for 1 or 2 t...

Embodiment 3

[0048] Embodiment 3, prepare powdery K 3 YB 6 o 12 compound.

[0049] Adopt solid phase reaction method, reaction equation is as follows:

[0050] 3K 2 CO 3 +Y 2 o 3 +12H 3 BO 3 = 2K 3 YB 6 o 12 +3CO 2 ↑+18H 2 O↑

[0051] The amount of the above three reagents: K 2 CO 3 : 4.146 grams (0.03mol); Y 2 o 3 : 2.258 grams (0.01mol); H 3 BO 3 : 7.419 g (0.12 mol).

[0052] The specific operation steps are: Weigh the reagents according to the above dosage, put them into the mortar, mix and grind carefully, and then put them into Put it into a platinum crucible with an open opening, compact it, put it into a muffle furnace, slowly raise the temperature to 500°C at a rate of 10°C / h and keep the temperature constant for 15h, take out the crucible after cooling, the sample is loose at this time, take out the sample and regrind Evenly, put it in a crucible for compaction, sinter in a muffle furnace at 750°C for 90 hours, take it out and grind it for 1 or 2 times in t...

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Abstract

The invention relates to a K3YB6O12 compound, a K3YB6O12 single crystal and preparation methods and applications of the K3YB6O12 compound and the K3YB6O12 single crystal. The K3YB6O12 compound is prepared by chemical synthesis, and the K3YB6O12 single crystal grows by melting salt with a fluxing agent, wherein the fluxing agent is a K2O-B2O3-KBF4 fluxing agent. The K3YB6O12 single crystal has no center of symmetry, belongs to a trigonal system and has an R32 space group, and the cell parameters comprise a=13.2202(19)Angstrom, c=30.281(6)Angstrom, v=4583.3(13)Angstrom<3>, and Z=15. The K3YB6O12 single crystal can be used for preparing a nonlinear optical element, has high purity, low cost, strong nonlinear optical effect, good mechanical performance and wide transmission range, is not easy to be doped with impurities, is non-deliquescent, is easy to process and preserve and has an ultraviolet interception edge of 195nm.

Description

technical field [0001] The invention belongs to the field of compounds, crystals and preparation and application, in particular to a kind of K 3 YB 6 o 12 Compound, K 3 YB 6 o 12 Nonlinear optical crystals and their preparation methods and uses. technical background [0002] Crystals with nonlinear optical effects are called nonlinear optical crystals. Here nonlinear optical crystal effects refer to effects such as frequency doubling, sum frequency, difference frequency, and parametric amplification. Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up and down frequency converters, and optical parametric oscillators can be made. The laser generated by the laser can be frequency converted by nonlinear optical devices, so as to obtain more useful wavelengths of laser light, so that the laser can be used more widely. The all-solid-state blue-green laser system can be realized by generating near-infrared laser ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B9/12C01B35/12
Inventor 张国春赵三根姚吉勇吴以成傅佩珍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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