CN102031562B - Non-linear optical crystal bismuth cadmium borate - Google Patents
Non-linear optical crystal bismuth cadmium borate Download PDFInfo
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- CN102031562B CN102031562B CN200910112584.0A CN200910112584A CN102031562B CN 102031562 B CN102031562 B CN 102031562B CN 200910112584 A CN200910112584 A CN 200910112584A CN 102031562 B CN102031562 B CN 102031562B
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- bismuth
- boracic acid
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Abstract
A kind of three color rolls into a ball the optical crystal bismuth borate cadmium of compound composition, is related to nonlinear optical material field. Bismuth borate cadmium, chemical formula are Cd4BiO (BO3) 3, and molecular weight 851.05 belongs to monoclinic system, space group Cm, and cell parameter is a=8.044 (2), b=15.913 (5), c=3.4891 (10)
Alpha=90.00 °, beta=100.08 (2) °, gamma=90.00 °, V=439.7 (2)
Z=2. It is prepared using high temperature solid-state method. Bismuth borate cadmium has excellent non-linear optical property, and powder SHG coefficient is equivalent to six times of KDP.
Description
Technical field
The invention belongs to nonlinear optical material and synthetic.
Background technology
Non-linear optic crystal, has frequency-doubled effect (SHG), at laser frequency conversion, Electro-optical Modulation, light, sells off information processing, and the high-tech areas such as nonlinear optics imaging have 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 non-linear optic crystal of practical application at present comprises LiB
3o
5(LBO), β-BaB
2o
4(BBO), KH
2pO
4(KDP), KTiOPO
4(KTP), LiNbO
3and BaTiO (LNO)
3(BTO) etc.Recently research shows to be combined the also superior nonlinear optical material of available energy with the borate with non-core structure containing the bismuth positively charged ion of lone-pair electron, as BiB
3o
6, BaBiBO
4, Bi
2znOB
2o
6deng.In exploring nonlinear optical material, we find Ca from the structure of known materials
4m
(111)o (BO
3)
3(A=Ca; M=La, Nd, Sm, Gd, Er, and Y) this serial compound spacer is Cm, belong to non-core structure, have good nonlinear optical property, we wish by replace the rare earth element in this system with bismuth, carry out the Clock Multiplier Factor of strongthener, obtained the novel non-linearity optical material of superior performance.The research of relevant this respect there is no bibliographical information.
Summary of the invention
One of object of the present invention is to prepare bismuth boracic acid cadmic compound.
Two of object of the present invention is to prepare bismuth boracic acid Cd monocrystal body.
Bismuth boracic acid cadmic compound prepared by the present invention, its chemical formula is Cd
4biO (BO
3)
3, molecular weight is 851.05.
Bismuth boracic acid cadmic compound adopts pyroprocess synthetic.Particularly, by the mol ratio of Cd: Bi: B, be 4: 1: 3, take CdO, Bi
2o
3with H
3bO
3grind, mix, put into platinum crucible, in chamber type electric resistance furnace, in 800 to 820 ℃ of stoichiometric numbers hour, can obtain light yellow polycrystal powder, purity 100%.
Bismuth boracic acid Cd monocrystal body prepared by the present invention, its chemical formula is Cd
4biO (BO
3)
3, molecular weight is 851.05, belongs to oblique system, spacer Cm, and cell parameter is a=8.044 (2), b=15.913 (5), c=3.4891 (10)
, alpha=90.00 °, beta=100.08 (2) °, gamma=90.00 °, V=439.7 (2)
, Z=2.Its structure is by CdO
6and CdO
7polyhedron by between two altogether limit form a two strands along c direction, chain and chain have the three-dimensional structure in eight yuan and quaternary tunnel by common summit and then formation.Bl and Bi are positioned at by four CdO
6with four CdO
7in the middle of the tunnel that polyhedron surrounds, B2 is positioned at by two CdO
6with two CdO
7polyhedron surrounds in tetra-atomic ring.B atom is all the plane triangle structure that the formation of three-fold coordination has polarity, and Bi atom is because lone-pair electron have irregular octahedron to the impact of its three-dimensional arrangement and then formation.It should be noted that the B2O in structure
3and BiO
6the polar orientation of two configurations is consistent substantially, is all towards a direction, and this is the enhancement that played to nonlinear optical property just.
Bismuth boracic acid Cd monocrystal body is prepared by pyroprocess.Particularly, with CdO, Bi
2o
3with H
3bO
3for raw material, mix grinding, after pre-burning, grind, and then 900 ° of constant temperature of high temperature, then slow cooling, it naturally cools to room temperature relief, obtains light yellow transparent tabular crystal.
Nonlinear optics measurement shows, bismuth boracic acid cadmium (Cd
4biO (BO
3)
3) there is good non-linear optical property, the very strong 532nm green glow of output under 1064nm laser radiation, its powder SHG coefficient is roughly equivalent to 6 times of KDP.Expection in laser frequency conversion, Electro-optical Modulation, light is sold off the high-tech areas such as information processing significant application value.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.
Accompanying drawing explanation:
Fig. 1. the structure iron along c-axis direction of bismuth boracic acid cadmium;
Fig. 2. the pure phase coatings of bismuth boracic acid cadmium;
Fig. 3. the uv-visible absorption spectra figure of bismuth boracic acid cadmium.
Embodiment
Embodiment 1 bismuth boracic acid cadmium dust preparation
In the mol ratio of Cd: Bi: B, be the CdO that 4: 1: 3 ratios weigh up, Bi
2o
3with H
3bO
3grind, mix, put into Pt crucible, be placed in chamber type electric resistance furnace, 820 ℃ of reactions 24 hours, can obtain productive rate and be 100% buff powder pure phase.
The preparation of embodiment 2 bismuth boracic acid Cd monocrystal bodies
To in the mol ratio of Cd: Bi: B, be the CdO that 4: 1: 4 ratios weigh up, Bi
20
3with H
3bO
3grind, mix, put into Pt crucible, put into box-type furnace 300 ℃ of pre-burnings, grind.Finally at 900 ℃ of constant temperature 10h, then with the speed of 3 ℃ per hour, cool to 600 ℃, and then be down to 300 ℃ with the speed of 6 ℃ per hour, it naturally cools to room temperature relief, in crucible bottom, obtains many light yellow transparent tabular crystals.This crystal has been carried out to Advances in crystal X-ray diffraction crystallographic analysis and known that it is bismuth boracic acid cadmium, as mentioned above, structure as shown in Figure 1 for its crystallographic parameter.
Claims (5)
1. a bismuth boracic acid cadmic compound, its chemical formula is Cd
4biO (BO
3)
3, molecular weight is 851.05.
2. a preparation method for bismuth boracic acid cadmic compound claimed in claim 1, is characterized in that: adopt high temperature solid-state method synthetic, the mixture that the mol ratio that adopts Cd:Bi:B is 4:1:3 is raw material, and temperature of reaction is 800 to 820 ℃.
3. a Non-linear optical crystal bismuth cadmium borate, is characterized in that: its chemical formula is Cd
4biO (BO
3)
3, molecular weight is 851.05, belongs to oblique system, spacer Cm, and cell parameter is
alpha=90.00 °, beta=100.08 (2) °, gamma=90.00 °,
z=2.
4. a preparation method for bismuth boracic acid Cd monocrystal body claimed in claim 3, is characterized in that: in the mol ratio of Cd:Bi:B, be the CdO that 4:1:4 ratio weighs up, and Bi
2o
3with H
3bO
3grind, mix, put into Pt crucible, put into box-type furnace 300 ℃ of pre-burnings, grind, finally at 900 ℃ of constant temperature 10h, then with the speed of 3 ℃ per hour, cool to 600 ℃, and then be down to 300 ℃ with the speed of 6 ℃ per hour, it naturally cools to room temperature relief, obtains light yellow transparent crystals.
5. a purposes for the non-linear optical crystal material bismuth boracic acid cadmium of claim 3, is characterized in that: this crystal is calculated or optical-fibre communications for the communication of submarine deep water, blinding laser weapons, the ocean locating fish, video disc recording, color laser printing, laser projection tv, photometry.
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| CN102031562B true CN102031562B (en) | 2014-09-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660773A (en) * | 2012-04-25 | 2012-09-12 | 中国科学院福建物质结构研究所 | Non-linear optical crystal boric acid cadmium yttrium oxide |
| CN102660772A (en) * | 2012-04-25 | 2012-09-12 | 中国科学院福建物质结构研究所 | Nonlinear optics crystal boric acid of oxygen, cadmium and lutetium |
| CN102660774A (en) * | 2012-04-25 | 2012-09-12 | 中国科学院福建物质结构研究所 | Boric acid oxygen cadmium ytterbium as nonlinear optical crystal |
| CN102660771A (en) * | 2012-04-25 | 2012-09-12 | 中国科学院福建物质结构研究所 | Boric acid oxygen cadmium gadolinium as nonlinear optical crystal |
| CN103451730B (en) * | 2012-06-05 | 2016-11-23 | 中国科学院理化技术研究所 | Cd4rO (BO3)3compound, Cd4rO (BO3)3optical crystal and preparation method and purposes |
| CN109231967B (en) * | 2018-10-15 | 2021-05-25 | 桂林理工大学 | Bi2O3-B2O3Binary system microwave dielectric ceramic material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295119A (en) * | 2007-04-26 | 2008-10-29 | 中国科学院福建物质结构研究所 | Novel nonlinear optical crystal boric acid aluminum gallium bismuth |
| CN101311370A (en) * | 2008-04-17 | 2008-11-26 | 中国科学院新疆理化技术研究所 | Large-sized bismuth zinc borate nonlinear optical crystal, preparation method and use |
-
2009
- 2009-09-28 CN CN200910112584.0A patent/CN102031562B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295119A (en) * | 2007-04-26 | 2008-10-29 | 中国科学院福建物质结构研究所 | Novel nonlinear optical crystal boric acid aluminum gallium bismuth |
| CN101311370A (en) * | 2008-04-17 | 2008-11-26 | 中国科学院新疆理化技术研究所 | Large-sized bismuth zinc borate nonlinear optical crystal, preparation method and use |
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