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Birefringent crystal material as well as preparation method and application thereof

A technology of crystal material and crystal structure, applied in the field of its preparation and birefringent crystal, can solve the problems of low transmittance, influence crystal application, easy cracking, etc., and achieve the effect of high transmittance

Active Publication Date: 2020-11-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented inventor describes an improved type of optical element called a binary reflex crystal made up from two different materials with specific properties such as lattice constants and molecular structures. These elements have very good transmission over both visible light wavelengths and infrared rays while also being able to transmit signals at certain frequencies like microwaves without losing their effectiveness due to its unique structure.

Problems solved by technology

Technologies aim towards producing better types of bireshaped mirror (BM)-based waveguides without requiring complex processes like slicering them into smaller pieces. Additionally, these techniques should allow for precise control over their orientation within certain dimensions while maintaining stability under extreme conditions.

Method used

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  • Birefringent crystal material as well as preparation method and application thereof
  • Birefringent crystal material as well as preparation method and application thereof
  • Birefringent crystal material as well as preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0047] Aqueous solution preparation A 2 B(H 2 C 3 N 3 o 3 ) 4 4H 2 O (A=K; B=Ca) the method for birefringent crystal, comprises the steps:

[0048] 1) Dissolve 0.2mmol potassium carbonate, 0.2mmol calcium carbonate, and 0.4mmol cyanuric acid in 100mL water;

[0049] 2) Put the beaker containing the mixed aqueous solution in step 1) on a magnetic stirrer and heat it to 100 degrees Celsius and keep stirring during the heating process until the solution is heated and concentrated to 90mL, then cooled and crystallized, and a large number of colorless transparent single Crystal appears.

[0050] 3) The crystal obtained in step 2) is washed with cold water and then put into a desiccator to naturally volatilize moisture, and the obtained crystal is subjected to an XRD test, and the X-ray diffraction pattern of the product obtained by the preparation method of this embodiment is referred to figure 2 (a) shown.

[0051] K obtained in this example 2 Ca(H 2 C 3 N 3 o 3 ) ...

Embodiment 2

[0056] Aqueous solution preparation A 2 B(H 2 C 3 N 3 o 3 ) 4 4H 2 O (A=K; B=Mg) the method for birefringent crystal, comprises the steps:

[0057] 1) Dissolve 0.2mmol potassium carbonate, 0.2mmol magnesium carbonate, and 0.4mmol cyanuric acid in 100mL water;

[0058] 2) Put the beaker containing the mixed aqueous solution in step 1) on a magnetic stirrer and heat it to 100 degrees Celsius and keep stirring during the heating process until the solution is heated and concentrated to 80mL, then cooled and crystallized, and a large number of colorless transparent single Crystal appears.

[0059] 3) Wash the crystal obtained in step 2) with cold water and put it into a desiccator to naturally volatilize moisture, and carry out the XRD test on the obtained crystal. The X-ray diffraction pattern of the product obtained by the preparation method of this embodiment refers to figure 2 (b) shown.

[0060] K obtained in this example 2 Mg(H 2 C 3 N 3 o 3 ) 4 4H 2 The crys...

Embodiment 3

[0065] Aqueous solution preparation A 2 B(H 2 C 3 N 3 o 3 ) 4 4H 2 O (A=Rb; B=Ca) the method for birefringent crystal, comprises the steps:

[0066] 1) Dissolve 0.4mmol rubidium carbonate, 0.2mmol calcium carbonate, 0.4mmol cyanuric acid in 100mL water;

[0067] 2) Put the beaker containing the mixed aqueous solution in step 1) on a magnetic stirrer and heat it to 100 degrees Celsius and keep stirring during the heating process until the solution is heated and concentrated to 80mL, then cooled and crystallized, and a large number of colorless transparent single Crystal appears.

[0068] 3) Wash the crystal obtained in step 2) with cold water and put it into a desiccator to naturally volatilize moisture, and carry out the XRD test on the obtained crystal. The X-ray diffraction pattern of the product obtained by the preparation method of this embodiment refers to figure 2 (c) shown.

[0069] The Rb obtained in this embodiment 2 Ca(H 2 C 3 N 3 o 3 ) 4 4H 2 The cr...

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Abstract

The invention discloses a birefringent crystal material as well as a preparation method and application thereof. The chemical formula of the crystal material is represented by A2B(H2C3N3O3)4.4H2O, andA is K and/or Rb, B is Mg and/or Ca. The crystal material belongs to a monoclinic system, and the space group of the crystal material is C2/m. The ultraviolet absorption cutoff wavelength of the crystal material is about 237 nm, and the crystal material has high transmittance within a range of 200 to 2500 nm. The birefringence of the crystal material is about 0.3 at a wavelength of 800 nm, and the crystal material is a birefringence crystal material with potential application value, can be used for manufacturing polarizing prisms, electro-optic regulating switches and the like, and has application in the aspects of optical communication, micromachining, photoetching and the like.

Description

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Claims

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Application Information

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Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI