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li 9 na 3 rb 2 (so 4 ) 7 Compound, nonlinear optical crystal and its preparation method and application

A nonlinear optics, SO4 technology, applied in the field of Li9Na3Rb27 compounds, can solve problems such as unfavorable long-term work

Active Publication Date: 2020-04-07
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the crystal contains crystal water, dehydration decomposition begins to occur at 83°C, which is not conducive to its long-term work under high-power laser irradiation

Method used

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  • li <sub>9</sub> na <sub>3</sub> rb <sub>2</sub> (so <sub>4</sub> ) <sub>7</sub> Compound, nonlinear optical crystal and its preparation method and application
  • li <sub>9</sub> na <sub>3</sub> rb <sub>2</sub> (so <sub>4</sub> ) <sub>7</sub> Compound, nonlinear optical crystal and its preparation method and application
  • li <sub>9</sub> na <sub>3</sub> rb <sub>2</sub> (so <sub>4</sub> ) <sub>7</sub> Compound, nonlinear optical crystal and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Adopt solid phase reaction method, reaction equation is as follows:

[0045] (a)9Li 2 SO 4 ·H 2 O+3Na 2 SO 4 +2Rb 2 SO 4 =2Li 9 Na 3 Rb 2 (SO 4 ) 7 +9H 2 O↑

[0046] The dosage of the above three reagents: Li 2 SO 4 ·H 2 O 23.03 grams (0.18mol), Na 2 SO 4 8.52 grams (0.06mol), Rb 2 SO 4 10.68g (0.04mol)

[0047] The specific operation steps are: weigh the reagents according to the above dosage, put them into a mortar, mix and grind them evenly, then put them into a platinum crucible, compact them, put them into a muffle furnace, and heat them at 30°C / hour. The temperature was raised to 380°C at a rate of 100°C / hour, and then kept for sintering for 24 hours. After cooling down to room temperature, the Li 9 Na 3 Rb 2 (SO 4 ) 7 The pure phase of the compound.

[0048] Such as figure 2 As shown, the powder X-ray diffraction pattern obtained from the experiment is consistent with the pattern obtained by fitting according to its single crystal st...

Embodiment 2

[0050] Adopt solid phase reaction method, reaction equation is as follows:

[0051] (b)9Li 2 SO 4 +3Na 2 SO 4 +2Rb 2 SO 4 =2Li 9 Na 3 Rb 2 (SO 4 ) 7

[0052] The dosage of the above three reagents: Li 2 SO 4 19.79 g (0.18 mol), Na 2 SO 4 8.52 g (0.06 mol), Rb 2 SO 4 10.68g (0.04mol)

[0053] The specific operation steps are: weigh the reagents according to the above dosage, put them into a mortar, mix and grind them evenly, then put them into a platinum crucible, compact them, put them into a muffle furnace, and heat them at 30°C / hour. The temperature was raised to 380°C at a rate of 100°C / hour, and then kept for sintering for 24 hours. After cooling down to room temperature, the Li 9 Na 3 Rb 2 (SO 4 ) 7 The pure phase of the compound.

[0054] Such as figure 2 As shown, the powder X-ray diffraction pattern obtained from the experiment is consistent with the pattern obtained by fitting according to its single crystal structure.

Embodiment 3

[0056] Adopt solid phase reaction method, reaction equation is as follows:

[0057] (c)9Li 2 SO 4 ·H 2 O+3Na 2 SO 4 10H 2 O+2Rb 2 SO 4 =2Li 9 Na 3 Rb 2 (SO 4 ) 7 +39 H 2 O↑

[0058] The dosage of the above three reagents: Li 2 SO 4 ·H 2 O 23.03 grams (0.18mol), Na 2 SO 4 10H 2 O 19.33 g (0.06 mol), Rb 2 SO 4 10.68g (0.04mol)

[0059] The specific operation steps are: weigh the reagents according to the above dosage, put them into a mortar, mix and grind them evenly, then put them into a platinum crucible, compact them, put them into a muffle furnace, and heat them at 30°C / hour. The temperature was raised to 400°C at a rate of 100°C / hour, and then kept for sintering for 24 hours. After cooling down to room temperature, the Li 9 Na 3 Rb 2 (SO 4 ) 7 The pure phase of the compound.

[0060] Such as figure 2 As shown, the powder X-ray diffraction pattern obtained from the experiment is consistent with the pattern obtained by fitting according to its s...

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Abstract

The invention relates to an Li9Na3Rb2(SO4)7 compound, nonlinear optical crystal and a preparation method and application thereof. The invention has the following beneficial effects: the crystal is easy to grow, is transparent and free of inclusion, and has the following advantages: growth speed is high, cost is low, and crystals with large size can be easily obtained. The crystal has advantages ofshort ultraviolet absorption cut-off edge, large non-linear optical effect, stable physical and chemical properties, good mechanical property and easy processing. The crystal can be used for manufacturing non-linear optical devices. A non-linear optical device prepared from the non-linear optical crystal can be used in some military and civilian high-tech fields, such as laser blinding weapon, optical disc recording, laser projection television, optical computing, fiber-optic communication, etc.

Description

technical field [0001] The present invention relates to a kind of Li 9 Na 3 Rb 2 (SO 4 ) 7 Compound, Li 9 Na 3 Rb 2 (SO 4 ) 7 Nonlinear optical crystals, Li 9 Na 3 Rb 2 (SO 4 ) 7 Crystal preparation method and Li 9 Na 3 Rb 2 (SO 4 ) 7 Crystals are used to make nonlinear optical devices. [0002] technical background [0003] The nonlinear optical effect of crystal refers to such an effect: when a beam of laser light with a certain polarization direction passes through a nonlinear optical crystal in a certain direction, the frequency of the beam will change. Crystals with nonlinear optical effects are called nonlinear optical crystals. Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up-down frequency converters, and optical parametric oscillators can be made. The all-solid-state laser using nonlinear optical crystals for frequency conversion is a development direction of lasers in the future, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01D17/00C30B29/46C30B11/02G02F1/355
CPCC01D17/003C01P2002/72C30B11/02C30B29/46G02F1/3551
Inventor 罗军华李雁强赵三根
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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