Compound strontium fluoborate and strontium fluoborate nonlinear optical crystal, and preparation methods and uses thereof

A technology of nonlinear optics and strontium fluoroborate, which is applied in the fields of nonlinear optics, chemical instruments and methods, boron compounds, etc., can solve the problems of large-sized crystals such as difficulty, small birefringence, and limited applications

Active Publication Date: 2018-04-20
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

However, due to its relatively small birefringence (Δn=0.04-0.05), it cannot achieve phase matching in the deep ultraviolet region, and the shortest frequency doubling wavelength is 276nm
Similar to LBO crystals, CBO and CLBO crystals also limit their application in the deep ultraviolet region due to their relatively small birefringence
Although BBO crystal has a large frequency doubling coefficient and birefringence, due to its relatively high UV absorption cut-off edge (189nm), its shortest frequency doubling wavelength is 204.8nm, which limits its application in the deep ultraviolet region.
KBBF can achieve direct six-fold frequency output of 1064nm fundamental frequency light, but due to the layered growth habit of KBBF, it is difficult to grow large-sized crystals, which limits its application to a certain extent

Method used

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  • Compound strontium fluoborate and strontium fluoborate nonlinear optical crystal, and preparation methods and uses thereof
  • Compound strontium fluoborate and strontium fluoborate nonlinear optical crystal, and preparation methods and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Preparation compound:

[0045] According to the reaction formula: 3Sr(BF 4 ) 2 +7B 2 o 3 →3SrB 5 o 7 f 3 +5BF 3 ↑, compound SrB was synthesized by solid phase reaction 5 o 7 f 3 :

[0046] Sr(BF 4 ) 2 , B 2 o 3 Mix evenly at a molar ratio of 3:7, put it into a Φ10mm quartz tube, and vacuum the quartz tube to a degree of 1×10 -3 Pa, vacuum-packed with a flame gun, placed in a muffle furnace, raised to 600°C at a rate of 30°C / h, kept at a constant temperature for 12 hours, then lowered to 25°C at a rate of 6°C / h, opened the quartz tube, The compound SrB is obtained 5 o 7 f 3 .

Embodiment 2

[0048] Preparation compound:

[0049] According to the reaction formula: 3Sr(BF 4 ) 2 +14H 3 BO 3 →3SrB 5 o 7 f 3 +5BF 3 ↑+21H 2 O↑, compound SrB was synthesized by solid phase reaction 5 o 7 f 3 :

[0050] Sr(BF 4 ) 2 , H 3 BO 3 Mix evenly at a molar ratio of 3:14, put it into the polytetrafluoroethylene liner of a clean and non-polluting hydrothermal kettle with a volume of 23mL, and tightly seal the hydrothermal kettle, place it in a drying box at a temperature of 35 Raise the temperature to 200°C at a rate of ℃ / h, keep the temperature constant for 60 hours, then lower it to 25°C at a rate of 6°C / h, turn on the hydrothermal kettle, and obtain the compound SrB 5 o 7 f 3 .

Embodiment 3

[0052] Synthesis of SrB by Solution Method at Room Temperature 5 o7 f 3 Nonlinear Optical Crystals:

[0053] According to the reaction formula: 3Sr(BF 4 ) 2 +7B 2 o 3 →3SrB 5 o 7 f 3 +5BF 3 ↑Synthesis of SrB 5 o 7 f 3 Compound, specific operation steps are carried out according to embodiment 1;

[0054] The obtained compound SrB 5 o 7 f 3 Put it into a hydrothermal kettle and seal it, put it in a drying oven, raise the temperature to 200℃ at a rate of 20℃ / h, keep the temperature at a constant temperature for 10 hours, then lower it to 25℃ at a rate of 1℃ / h, turn on the hydrothermal kettle, Get SrB 5 o 7 f 3 crystal seed crystal;

[0055] The resulting seed crystals were placed at the bottom of a washed beaker, and the resulting compound SrB 5 o 7 f 3 put in a beaker;

[0056] Add 5mL of solvent hydrofluoric acid into the beaker, then ultrasonically treat it to make it fully mix and dissolve, adjust the pH value of the solution to 4-6, filter it with qual...

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Abstract

The invention relates to a compound strontium fluoborate and a strontium fluoborate nonlinear optical crystal, and preparation methods and uses thereof. The chemical formula of the compound is SrB5O7F3, the molecular weight is 310.67, and the compound is prepared by a solid phase reaction technology; and the chemical formula of the crystal is SrB5O7F3, the molecular weight is 310.67, the crystal belongs to an orthorhombic system, the space group is Ccm21, and cell parameters are as follows: a = 1.0016(6) nm, b = 0.8654(6) (4) nm, c = 0.8103(5) nm, Z = 4, and V = 0.7024(8) nm<3>. The inventionalso discloses the use of the SrB5O7F3 nonlinear optical crystal with the size being in the centimeter grade through the preparation method in the preparation of harmonic wave light output with the frequency being 2 or 3 or 4 or 5 or 6 times the frequency of 1064 nm fundamental frequency lights output by a Nd:YAG laser device or 200 nm or less deep ultraviolet frequency-doubled light output, or the use in the preparation of a frequency multiplier generator, an frequency up-converter or a frequency down-converter, or an optical parametric oscillator. The SrB5O7F3 nonlinear optical crystal has the advantages of wide light transmission band, stable physical and chemical properties, large mechanical hardness, no fragmentation or deliquescence, and easiness in cut, polishing processing and preserving.

Description

technical field [0001] The invention relates to a compound strontium fluoroborate and a strontium fluoroborate nonlinear optical crystal, a preparation method and an application. Background technique [0002] With 193nm lithography technology, micro-nano fine laser processing, and modern instruments such as ultra-high energy resolution photoelectron spectroscopy and photoelectron emission microscope, there is a strong demand for deep ultraviolet laser sources (generally referring to wavelengths shorter than 200nm). Ultraviolet laser light sources have become a recent research hotspot in the international laser science community. The development of all-solid-state deep ultraviolet laser light source, deep ultraviolet nonlinear optical crystal is a very key component. [0003] At present, the ultraviolet and deep ultraviolet nonlinear optical crystals used in the industry mainly include LiB 3 o 5 (LBO), CsB 3 o 5 (CBO), CsLiB 6 o 10 (CLBO), BaB 2 o 4 (BBO) and KBe 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/12C30B1/10G02F1/355
CPCG02F1/3551C30B1/10C30B29/12C01B35/127C30B9/12C30B11/06C30B11/002C30B11/003C30B11/08
Inventor 潘世烈米日丁·穆太力普张敏
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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