67results about How to "Large frequency doubling effect" patented technology

The invention discloses an infrared second-order nonlinear optical crystal material CsHg1.5I4 and a preparation method and application thereof. The crystal space group of the optical crystal material is Cm. The optical crystal material has the advantages of large phase-matchable second-order nonlinear optical coefficients, large light-transmitting widows in a visible region and an infrared region, high thermal stability, simple operation of a synthesis method, short reaction time, moderate experimental conditions and high purity of products; in addition, high-quality and big-size crystals can be produced through a simple method of solvent volatilization; thus the optical crystal material can be widely applied in the optical field.

The invention relates to an inorganic compound Na2Sn(IO3)6 as well as a preparation method and application thereof. The chemical formula of the compound is Na2Sn(IO3)6 and belongs to a hexagonal system, the space group is P63, and the unit cell parameters are shown in the specification, and the unit cell volume is shown in the specification. The colorless acicular Na2Sn(IO3)6 crystal is prepared by using a hydrothermal method. The powder frequency-double effect of the Na2Sn(IO3)6 crystal is 12 times of that of KH2PO4, and the ultraviolet cutoff edge of the Na2Sn(IO3)6 crystal is about 300nm.

The invention relates to a method for preparing a large chlorine barium borate nonlinear optic crystal and applications thereof. The molecular formula of the crystal is Ba2B5O9Cl. A high-temperature solution method is used, and a fluxing agent is used for cultivating the crystal. The ultraviolet edge of the crystal is less than 230 nm, and the nonlinear optical effect of the crystal is about 6 times higher than that of KDP (KH2PO4). The crystal has the characteristics of good frequency doubling effect, high mechanical strength, easy processing, no deliquescence and the like and has the advantages of rapid preparation, simple operation, low cost, large size and the like. The crystal is suitable for producing nonlinear optical devices and can be widely applied to nonlinear optical devices, such as frequency doubling converters, optical parametric oscillators and the like.

The invention discloses an inorganic crystal compound Rb2BiI5O15 as well as a preparation method of the compound and an application of the compound as a second-order nonlinear optical crystal material. The material has the outstanding characteristics as follows: RbIO4, RbCl, Bi2O3 and H5IO6 are taken as initial reactants for the first time and the material is prepared by adopting a hydrothermal method; a relatively good second-order nonlinear optical effect capable of being subjected to phase matching is obtained; very large light-transmitting windows are formed in a visible light region and a mid-infrared light region; a band gap is relatively large and the thermal stability is relatively good; a synthetic method is easy to operate, high in raw material utilization rate, mild in experimental conditions and high in product purity; the crystal material can be widely applied to the field of optics.

The invention discloses an inorganic infrared non-linear optical crystal material. In the inorganic infrared non-linear optical crystal material, the molecular formula is Hg2BrI3; the crystal space group is Cmc21; a is equal to 4.698 (1) angstroms; b is equal to 7.2246 (6) angstroms; c is equal to 13.520 (1) angstroms; alpha, beta and gamma are the same and equal to 90 o; and Z is 4. The inorganic infrared non-linear optical crystal material has high second-order non-linear optical coefficients capable of performing phase matching, big light-transmitting windows in ultraviolet, visible light and infrared regions and high thermal stability. A synthetic method of the inorganic infrared non-linear optical crystal material comprises the following steps of: adding HgBr2 and HgI2 in a molar ratio of 2:1 into acetone to dissolve; stirring at the temperature of between 30 and 50 DEG C for 8 hours; and after the reaction is finished, placing at room temperature to naturally volatilize the solvent to obtain a yellow transparent crystal. The crystal material can be widely applied in the fields of optics and the like.

The invention relates to an inorganic compound with a non-heart structure, and a preparation method and an application thereof as a nonlinear optical crystal. The crystal has a chemical formula of K2Au(IO3)5, belongs to an orthorhombic crystal system, has a space group of C[mc]2[1], and has crystal cell parameters of a=11.5949(8) angstroms, b=11.6905(6) angstroms, c=11.4716(6) angstroms, alpha=beta=gamma=90 DEG and Z=4. The yellow K2Au(IO3)5 crystal is prepared by a hydrothermal method. The powder frequency-doubling effect of the K2Au(IO3)5 crystal is 1.0 time that of KTiOPO4.

The invention discloses a novel inorganic compound K2BiI5O15, and a preparation method, properties and application thereof as a second-order nonlinear optical crystal material. The outstanding characteristics of the material are that KIO4, KCl, Bi2O3 and H5IO6 are adopted as initial reactants for the first time to prepare the material in a hydrothermal method; the material has a stronger phase-matching second-order nonlinear optical effect, a broad light transmitting window in the visible region and the middle infrared region, a larger band gap and higher heat stability; the preparation method is easy to operate, high in raw material utilization rate, mild in experiment condition and high in product purity; the crystal material can be widely applied in the field of optics.

The invention discloses a novel infrared nonlinear optical material. The molecular formula of the novel infrared nonlinear optical material is RbHgI3, a crystal is an orthorhombic system, a space group is Ama2(No.40), and main crystallographic parameters include a=8.838(3) , b=9.824(3) , c=11.050(3) , alpha=beta=gamma=90.00oand Z=4. The material has the outstanding advantages that the material has a high phase-matched second-order non-linear optical coefficient; wide light-transmitting windows are arranged in an ultraviolet region, a visible region and an infrared region; good thermal stability is achieved. A synthetic method includes adding RbI and HgI2 in the molar ratio of 1:1 into an organic solvent, stirring at the temperature of 80 DEG C till clear and transparent solution is formed, and continuing to stir for 24 hours; after reaction, cooling naturally; performing slow evaporation or slow cooling at the room temperature to obtain a yellow transparent crystal. The novel infrared nonlinear optical material has the advantages of simplicity in operation, mild experimental conditions, high product purity, capability of obtaining the crystal of a compound by utilizing the simple solvent, and the like; the crystal material can be widely applied to the optical field and the like.

The invention relates to a nonlinear optical crystal Pb2TiOF(SeO3)2Cl, its preparation and application. The compound belongs to a monoclinic system, its space group is P21, its cell parameters are a=8.2863(5) angstroms, b=5.3781(2) angstroms, c=10.7167(6) angstroms, beta=111.191(6)<o>, and Z=2. The cell volume V is 445.29 (4) angstrom<3>. The nonlinear optical crystal Pb2TiOF(SeO3)2Cl is prepared by a hydrothermal method. The powder second-harmonic-generation (SHG) coefficient of the Pb2TiOF(SeO3)2Cl is about 9.6 times of that of KDP(KH2PO4).

The invention relates to a europium iodate monohydrate infrared nonlinear optical crystal material and preparation and application thereof. The chemical formula of the crystal material is Eu (IO3) 3.H2O, the molecular weight is 694.68, the material belongs to the monoclinic system, the space group is P21; cell parameters are shown in the specification, alpha=gamma=90 degrees, beta=109.5-110.0 degrees, Z=2, and the cell volume is shown in the specification. Compared with the prior art, the europium iodate monohydrate infrared nonlinear optical crystal material has excellent optical performance;under the irradiation of 1064nm laser, the powder frequency multiplication intensity is about 4.5 times of that of a potassium dihydrogen phosphate crystal, and the laser damage threshold measured under the laser with the wavelength of 1064nm is 43 times of that of a commercialized infrared second-order nonlinear material silver gallium sulfur. In addition, the crystal material has a very wide transmission range in an ultraviolet-visible light-near infrared region (0.3-2.5 microns) and an infrared region (3.2-10.4 microns), and has a wide application prospect in the fields of laser frequencyconversion, photoelectric modulation, laser signal holographic storage and the like.

The invention relates to an inorganic compound Li2Sn(IO3)6 as well as a preparation method and use thereof. The chemical formula of the compound is Li2Sn(IO3)6; the compound belongs to a hexagonal crystal system, the space group is P6<3>, cell parameters are that a and b are equal to 9.4589(4) angstrom respectively, c is equal to 5.1707(4) angstrom, Alpha and Beta are equal to 90 degrees respectively, gamma is equal to 120 degrees, and Z is equal to 1; crystal cell volume V is equal to 400.65(4) cubic angstrom; colorless needlelike Li2Sn(IO3)6 crystal is prepared by using a hydrothermal method. The powder frequency-doubled effect of the Li2Sn(IO3)6 crystal is 15 times of that of KH2PO4, and ultraviolet stopping side is about 304 nanometers.

The invention discloses inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof. The chemical formula of the inorganic matter is NaBi(IO3)4, the molecular weight is 931.57, the inorganic matter belongs to a monoclinic system, the crystal space group is Cc, and the cell parameters are as shown in the description; the compound can be obtained through a hydrothermal synthesis method at the temperature of 210 to 250 DEG C, the operation is simple, and the experiment condition is mild; the crystal of the inorganic compound has a relatively high second-order nonlinear optical effect, and phase matching can be realized; and the compound has relatively high transparency in visible-near-infrared light zones and medium-infrared light zones, has relativelylarge band gaps and relatively high thermal stability, and can be used as a nonlinear optical crystal material which can be widely applied to the fields such as optics.

The present invention discloses one kind of second-order non-linear optical crystal material and its preparation process and use. The crystal material has molecular expression of KLiBeF4 and crystal space group of P63. Its preparation process includes the following steps: setting lithium hydroxide, potassium hydroxide, beryllium fluoride and ammonium hydrofluorate into reactor, adding distilled water, adding hydrofluoric acid while stirring to regulate pH value to 5-7; sealing, heating to 140-160 deg.c and maintaining for over 20hr; lowering the temperature to room temperature and filtering to obtain colorless transparent crystal; and washing with distilled water and vacuum drying to obtain the second-order non-linear optical crystal. The second-order non-linear optical crystal has great transparent windows in deep violet area, visible light area and infrared area, great second-order non-linear optical coefficient, high heat stability, simple synthesis and other advantages.

The invention relates to a preparation method and application of a bismuth oxyiodide non-linear optical crystal. The chemical formula of the crystal is Bi4O5I2; the crystal belongs to a monoclinic system with a space group of P21. The bismuth oxyiodide non-linear optical crystal is synthesized by adopting a hydrolysis method which is simple and low in cost; the raw material is convenient to obtain. The bismuth oxyiodide non-linear optical crystal obtained by the method disclosed by the invention can be used for preparing a non-linear optical device frequency-doubling generator and is a nonlinear optical material with applied value.

The invention relates to a novel crystal material and a preparation method and application thereof. The chemical formula of the crystal material is NaSr3(OH)(B9O16)[B(OH)4], the crystal material belongs to a trigonal crystal system, space group is P31c, and crystal unit cell parameters include that a is equal to 9.9-10.0 , b is equal to 9.9-10.0 , c is equal to 8.7-8.8 , alpha is equal to beta equal to 90 degrees, gamma is equal to 120 degrees, and Z is equal to 2. Compared with the prior art, the crystal material has great frequency doubling effect and is 3.20 times of KH2PO4(KDP) crystal and 0.45 time of BBO crystal. In addition, the crystal material has wide transmission range, ultraviolet transmission cutoff side of the crystal material is smaller than 190nm, and the crystal material has wide application prospect in the field of nonlinear optics, electro-optical modulation and photorefractive information processing.

The invention relates to a non-linear optical crystal alpha-AgI3O8 and a preparation method of the non-linear optical crystal alpha-AgI3O8. The chemical formula of the chemical compound is AgI3O8, the chemical compound belongs to an orthorhombic system, and the space group is Pnc2. According to the cell parameters, a= 8.1443(3) , b=9.1171(3) , c=11.7005(5) , and z=4. According to the size of a crystal cell, V=773.50(5) <3>. The colorless sheet crystal alpha-AgI3O8 is obtained by the adoption of the hydrothermal method, and the SHG of the crystal alpha-AgI3O8 is 9 times that of KDP(KH2PO4).

The invention provides a novel infrared nonlinear optical crystal material MnTeMoO6 and a growth method of the novel infrared nonlinear optical crystal material MnTeMoO6 and an application. The infrared nonlinear optical crystal material MnTeMoO6 has the chemical formula of MnTeMo6, and the powder has frequency-doubled effect of 0.7 * KTP; the scope of transmitting crystal infrared wave section is ranged from 2.5 to 5.3mu m and 5.5 to 6.5mu m; the crystal has melting point of 735.6 DEG C; the space group is P21212. The crystal material grows through the top-seeded solution growth method; TeO2 and MoO3 are served as the co-solvents, and the growth raw materials are the MnTeMoO6 powder body, TeO2 and MoO3 based on a mol ratio of 1: 2: 2, or the MnO, TeO2 and MoO3 based on mol ratio of 1: 3: 3. The MnTeMoO6 polycrystalline powder has a high frequency-doubled effect, cannot be hygroscopic, and cannot be dissolved into water and diluted hydrochloric acid; and the novel infrared nonlinear optical crystal material MnTeMoO6 has stable physical and chemical performances; and the novel infrared nonlinear optical crystal material MnTeMoO6 can be applied to aspects of medical treatment, nuclear fusion, laser weapon, optical communication and light storage and the like.

The invention discloses a novel second-order nonlinear optical material. The molecular formula of the novel second-order nonlinear optical material is HgBrI; and a crystallographic space group is Cmc21; a is 4.673(2); b is 7.130(3); c is 13.314(6); alpha is 900, beta is 900, gamma is 900 and Z is 4. The novel second-order nonlinear optical material has remarkable characteristics of strong second-order nonlinear optical effect which can be matched by phase, large light-transmitting windows in a visible light zone and an infrared light zone and favorable thermal stability. The crystal material can be widely applied to the fields of optics and the like.

The invention relates to a Cs2GeB4O9 compound, a single crystal thereof, a preparation method and application thereof. The compound belongs to tetragonal crystal system, has a space group shown as below, unit cell parameters satisfying the relations of: alpha =beta = gamma = 90 DEG C, and Z = 2, and unit cell volume as below. The Cs2GeB4O9 crystal has powder effect of second harmonic generation 2.8 times of that of KH2PO4 (KDP), and has ultraviolet cutoff at 198 nm.

The invention discloses application of a cubic-phase Ga2Se3 crystal to nonlinear optics. A preparation method for the crystal comprises the following steps: subjecting gallium oxide, boron and selenium in a mol ratio of 1: 2: 3 to mixing, grinding and tablet compressing successively and then sealing the obtained tablet in a vacuumized quartz tube; carrying out a reaction at 850 to 1000 DEG C for 24 h or more and then carrying out slow cooling to 300 DEG C at a cooling speed of 4 to 6 DEG C/h; and washing a product obtained in the previous step and drying the product so as to obtain the pure-phase Ga2Se3 crystal. The preparation method is simple in process, easy to operate, simple in chemical composition and good in repeatability; and the prepared cubic-phase Ga2Se3 crystal has great frequency-doubled effect and a wide infrared transmission range and can be applied to frequency conversion of laser output of a laser.

The invention relates to a cerium fluorosulfate second-order nonlinear optical crystal material as well as a preparation method and application thereof. The chemical formula of the crystal material is CeF2(SO4), the molecular weight is 274.18, the crystal material belongs to an orthorhombic system, the space group of the crystal material is Pca21, the cell parameters are alpha=beta=gamma=90 degrees, and Z is equal to 4. The cell volume of the crystal material is compared with that of the prior art, the powder SHG coefficient of the crystal CeF2(SO4) under 1064nm laser irradiation is 8.0 times that of KH2PO4(KDP), and phase matching can be achieved under 1064nm laser irradiation. In addition, the birefringence of the crystal breaks through the birefringence limit of the oxide at the position of 0.361 at 546 nm.

A SbI3(S8)3 with great light transmission window for ultraviolet light, visual light and infrared light and high second-order non-linear optical coefficient and its preparing process are disclosed. Its large-size monocrystal can be easily prepared, so it can be used as the second-order non-linear optical material for infrared band.

The invention relates to a rubidium molybdenum fluoride tellurite second-order nonlinear optical crystal material and preparation thereof, and application of rubidium molybdenum fluorine tellurite second-order nonlinear optical crystal material in laser frequency conversion. The chemical formula of the crystal material is RbTeMo2O8F; the molecular weight of the crystal material is 551.95; the crystal material belongs to a monoclinic system; the space group of the crystal material is Pn; the cell parameters of the crystal material are that a is equal to 5.55 to 5.73 angstroms, b is equal to 9.18 to 9.30 angstroms,c is equal to 7.44 to 7.57 angstroms, alpha is equal to gamma and equal to 90 degrees, beta is equal to 95.13 to 95.32, and Z is equal to 2; and the cell volume V of the crystal material is equal to 379.1 to 403.4 angstroms<3>.The rubidium molybdenum fluoride tellurite crystal material has excellent optical performance; under irradiation of laser with a wavelength of 1064 nm, the powder frequency doubling strength of the rubidium molybdenum fluoride tellurite crystal material is about 27 times the powder frequency doubling strength of a monopotassium phosphate crystal; and under laser with a wavelength of 2100 nm, the powder frequency doubling strength of the rubidium molybdenum fluoride tellurite crystal material is 2.2 times the powder frequency doubling strength of a potassium titanyl phosphate crystal. In addition, the crystal material has a wide transmission range in a visible light-infrared light region (0.34-5.4 [mu]m), and has wide application prospects in the fields of laser frequency conversion, photoelectric modulation, laser signal holographic storage and the like.