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Infrared nonlinear optical crystal material MnTeMoO6 and growth method and application thereof

A nonlinear optics, crystal material technology, applied in the direction of polycrystalline material growth, crystal growth, single crystal growth, etc., can solve the problems of interfering missile early warning and tracking, burning, etc., to achieve the effect of enriching the research content

Inactive Publication Date: 2012-12-26
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4.3 mu m is the characteristic spectral line of the early warning and tracking strategic missiles of the current space missile early warning system. Therefore, the technical solution for countering the space missile early warning system is to launch the mu m's strong infrared laser attacks the infrared detector of the space missile early warning system, causing saturation or burning, thereby interfering with the early warning and tracking of the missile by the space missile early warning system
At present, one of the technical bottlenecks in the development of the above-mentioned lasers is the infrared nonlinear optical crystal material

Method used

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  • Infrared nonlinear optical crystal material MnTeMoO6 and growth method and application thereof
  • Infrared nonlinear optical crystal material MnTeMoO6 and growth method and application thereof
  • Infrared nonlinear optical crystal material MnTeMoO6 and growth method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of MnTeMoO by Solid Phase Synthesis 6 Powder:

[0026] MnO, TeO 2 and MoO 3 Mix evenly at a molar ratio of 1:1:1, place in a 20 mL platinum crucible, put the crucible in a muffle furnace, slowly raise the temperature to 550 °C, keep it warm for 20 h, cool to room temperature, and put the sintered powder in Grind finely in an agate mortar. After repeating the calcination and grinding of the powder 3 times, the taupe MnTeMoO was obtained 6 Powder.

[0027] Use Bruker-AXS D8 Focus type X-ray diffractometer to carry out X-ray diffraction analysis to powder, and JCPDS card 33-0911 (molecular formula: MnTeMoO 6 , orthorhombic crystal system, space group P2 1 2 1 2, a =0.5294nm, b =0.5135nm, c =0.8960nm, V =0.2438nm 3 ) X-ray diffraction patterns for comparison ( figure 1 ), the results are shown for pure MnTeMoO 6 Mutually.

Embodiment 2

[0029] wxya 6 Powder frequency doubling effect:

[0030] The frequency doubling performance of the material is measured by the Kurtz powder frequency doubling test method. KTP powder is used as the standard sample and 2100nm Nd:YAG pulsed laser is used as the light source to measure MnTeMoO 6 The frequency doubling effect of powder is equivalent to 0.7×KTP.

Embodiment 3

[0032] slow cooling in TeO 2 -MoO 3 MnTeMoO Growth in Molten Salt System 6 Crystal:

[0033] MnTeMoO 6 (prepared in Example 1), TeO 2 and MoO 3 Mix evenly at a molar ratio of 1:2:2, place in a 20 mL platinum crucible, put the crucible into a crystal growth furnace (the temperature controller is Xiamen Yudian AL-808P, Pt-Rh thermocouple), and set the temperature at 4°C Raise the temperature to 680°C per hour and keep the temperature constant for 25 hours to make the melt melt evenly. When the temperature of the high-temperature solution drops to 5°C above the saturation temperature, introduce the seed crystal, and the seed crystal grows from a small piece of MnTeMoO that spontaneously nucleates. 6 Choose the best among the crystals, cool down at a rate of 0.5°C / day, and the crystals begin to grow. The rotation rate of the seed rod is 20 r / min, and it rotates in the way of forward rotation-stop rotation-reverse rotation-stop rotation-forward rotation. When the crystal gro...

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Abstract

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.

Description

technical field [0001] The invention relates to the field of nonlinear optical crystal technology, in particular to an infrared nonlinear optical crystal material manganese tellurium molybdate (chemical formula: MnTeMoO 6 ) and its growth methods and uses. Background technique [0002] The nonlinear optical effect is the result of the interaction between the electric field of the incident light wave and the molecules or groups in the crystal. The frequency conversion technology of frequency doubling, frequency mixing, parametric oscillation and optical parametric amplification produced by the second-order nonlinear optical effect of the crystal is used in medical treatment, nuclear fusion, laser weapons, optical communication, optical storage, etc. Inorganic nonlinear optical crystal materials occupy a dominant position in second-order nonlinear optical materials. [0003] Due to the absorption of infrared radiation by the atmosphere, only three atmospheric windows are lef...

Claims

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Application Information

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IPC IPC(8): C30B29/32C30B1/10
Inventor 李珍金成国李飞
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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