CN101587280B - Nonlinear optical crystal caesium borogermanate - Google Patents
Nonlinear optical crystal caesium borogermanate Download PDFInfo
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- CN101587280B CN101587280B CN 200810071099 CN200810071099A CN101587280B CN 101587280 B CN101587280 B CN 101587280B CN 200810071099 CN200810071099 CN 200810071099 CN 200810071099 A CN200810071099 A CN 200810071099A CN 101587280 B CN101587280 B CN 101587280B
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- caesium
- nonlinear optical
- borogermanate
- crystal
- optical crystal
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Abstract
The invention relates to nonlinear optical crystal caesium borogermanate which belongs to a nonlinear optical material and synthesis thereof. The crystal has a chemical formula of CsGeB3O7 and the molecular weight of 249.93, belongs to a rhombic system and has a space group of Pna21 and unit cell parameters that a is 9.542(3)*, b is 9.823(3)*, c is 7.009(2)*, V is 6557.0(3)*3, and Z is 4. The caesium borogermanate (CsGeB3O7) is prepared by a high-temperature solid phase method and has good nonlinear optical performance, and the SHG coefficient of e caesium borogermanate powder is 1.5 times of that of KDP.
Description
Technical field
The invention belongs to nonlinear optical material and synthetic.
Background technology
Nonlinear optical crystal has frequency-doubled effect (SHG), and selling off the high-tech areas such as information processing at laser frequency conversion, electrooptical modulation, light has significant application value.Nonlinear optical material is in modern science and technology, particularly in some military and civilian high-tech areas, such as the communication of submarine deep water, blinding laser weapons, the ocean locating fish, video disc recording, color laser printing, laser projection tv, photometry calculation and optical-fibre communications etc. has a series of important application.The nonlinear optical crystal of at present practical application comprises LiB
3O
5(LBO), β-BaB
2O
4(BBO), KH
2PO
4(KDP), KTiOPO
4(KTP), LiNbO
3(LNO) and BaTiO
3(BTO) etc.Studies show that recently the Se (IV) that contains lone pair electrons, the Mo (VI) of Te (IV) and easily Jahn-Tellor distortion etc. are in conjunction with the nonlinear optical material that also available can be superior, such as Na
2TeW
2O
9, BaTeM
2O
9(M=Mo6+, W6+).Our group's success selenium (IV) is combined with borate obtained the novel non-linearity optical material of a routine superior performance: Se
2B
2O
7(SBO).And borate and germanic acid root knot are closed, also can obtain having the compounds of Nonlinear Second order Optical Properties, the K that obtains such as Hydrothermal Synthesis
2[Ge (B
4O
9)] 2H
2O, its powder SHG coefficient is the twice of KDP.But its deadly defect is poor heat stability, and 30 ℃ namely begin to decompose.We utilize high temperature solid-state method that borate is combined with the germanic acid root, to obtaining the superior novel non-linearity optical material of thermal stability high-performance.The research of relevant this respect there is no the bibliographical information summary of the invention.
Summary of the invention
The object of the invention is to prepare a kind of nonlinear optical crystal caesium borogermanate.
Boron germanic acid caesium (CsGeB
3O
7) molecular weight is 349.93, belongs to orthorhombic system, space group Pna2
1, cell parameter is
Z=4.Its structure is the B by ring-type
3O
7 5-The tridimensional network that group links to each other and forms by germanium (IV), cesium ion is filled in along in the one dimension pipeline of a axle.Contain two kinds in the structure along the chirality cavity of c direction: a kind of is by two GeO
4, two BO
4With two BO
3The hexatomic ring that group forms consists of, and a kind of is by four GeO
4, four BO
4With two BO
3The ten-ring that group forms consists of.B
3O
7 5-Group is by a BO
4With two BO
3Group is formed by connecting by common summit, and Ge is the tetrahedral coordination pattern, and the Cs ion is ten coordinations.
Boron germanic acid caesium (CsGeB
3O
7) high temperature solid-state method: with boric acid, germanium dioxide and cesium carbonate mix, and in 550 to 650 ℃ of stoichiometric numbers hour in chamber type electric resistance furnace can obtain, and productive rate can reach 100%.
The nonlinear optics measurement shows, boron germanic acid caesium (CsGeB
3O
7) have good non-linear optical property, the very strong 532nm green glow of output under the 1064nm Ear Mucosa Treated by He Ne Laser Irradiation, its powder SHG coefficient is 1.5 times of KDP.Be expected at laser frequency conversion, electrooptical modulation, light is sold off the high-tech areas such as information processing that significant application value is arranged.This type of nonlinear optical material is in modern science and technology, particularly in some military and civilian high-tech areas, such as the communication of submarine deep water, blinding laser weapons, the ocean locating fish, video disc recording, color laser printing, laser projection tv, photometry calculation and optical-fibre communications etc. has a series of important application.
Embodiment
Example: H
3BO
3(6mmol), GeO
2(2mmol) and Cs
2CO
3(1mmol), ground and mixed is even, 650 ℃ of reactions 2 days, per hour is down to 200 ℃ with 10 ℃, can obtain the uniform polycrystalline of particle diameter.
Claims (3)
1. nonlinear optical crystal caesium borogermanate, it is characterized in that: its chemical formula is CsGeB
3O
7, molecular weight is 349.93, belongs to orthorhombic system, space group Pna2
1, cell parameter is a=9.542 (3)
B=9.823 (3)
C=7.009 (2)
V=657.0 (3)
Z=4.
2. the preparation method of the boron germanic acid caesium of a claim 1 adopts the high temperature solid-state method preparation, comprises the steps: to adopt boric acid, germanium dioxide and cesium carbonate were raw material, and ground and mixed is even, 650 ℃ of reactions 2 days, per hour be down to 200 ℃ with 10 ℃, obtain the uniform polycrystalline of particle diameter.
3. the purposes of the boron germanic acid caesium of a claim 1 is characterized in that: this crystal is used for the communication of submarine deep water, blinding laser weapons, the ocean locating fish, video disc recording, color laser printing, laser projection tv, photometry and calculates or optical-fibre communications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810071099 CN101587280B (en) | 2008-05-22 | 2008-05-22 | Nonlinear optical crystal caesium borogermanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810071099 CN101587280B (en) | 2008-05-22 | 2008-05-22 | Nonlinear optical crystal caesium borogermanate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101587280A CN101587280A (en) | 2009-11-25 |
| CN101587280B true CN101587280B (en) | 2013-01-02 |
Family
ID=41371574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810071099 Expired - Fee Related CN101587280B (en) | 2008-05-22 | 2008-05-22 | Nonlinear optical crystal caesium borogermanate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101587280B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096268B (en) * | 2009-12-11 | 2014-09-17 | 中国科学院福建物质结构研究所 | Nonlinear optical crystal rubidium borogermanate |
| CN102534784B (en) * | 2010-12-16 | 2015-07-15 | 中国科学院福建物质结构研究所 | Nonlinear optical crystal Rb4Ge3B6O17 |
| CN102942189B (en) * | 2012-09-29 | 2016-08-17 | 中国科学院福建物质结构研究所 | Cs2geB4o9compound and monocrystal thereof |
| CN102943305B (en) * | 2012-11-13 | 2015-08-12 | 中国科学院新疆理化技术研究所 | Compound caesium boric acid silicon and caesium boric acid silicon non-linear optic crystal and preparation method and purposes |
| CN103572372B (en) * | 2013-11-09 | 2018-05-11 | 中国科学院福建物质结构研究所 | Infrared nonlinear optical single crystal selenium gallium tin |
| CN107201545A (en) * | 2017-04-21 | 2017-09-26 | 北京大学 | Borosilicate compound CsSiB3O7And its powder preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225952A (en) * | 1998-02-11 | 1999-08-18 | 中国科学院福建物质结构研究所 | Non-linear optical crystal Ba2Be2B2O7 |
| CN1646613A (en) * | 2002-02-19 | 2005-07-27 | 光子－X有限公司 | Polymer nanocomposites for optical applications |
-
2008
- 2008-05-22 CN CN 200810071099 patent/CN101587280B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225952A (en) * | 1998-02-11 | 1999-08-18 | 中国科学院福建物质结构研究所 | Non-linear optical crystal Ba2Be2B2O7 |
| CN1646613A (en) * | 2002-02-19 | 2005-07-27 | 光子－X有限公司 | Polymer nanocomposites for optical applications |
Non-Patent Citations (1)
| Title |
|---|
| 张秀容等.新型非线性光学晶体硼酸铯锂的研究.《人工晶体学报》.1998,第27卷(第1期),1－5. * |
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|---|---|
| CN101587280A (en) | 2009-11-25 |
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Granted publication date: 20130102 Termination date: 20170522 |