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Novel infrared non-linear optical crystals barium bismuth indium sulfide

A technology of nonlinear optics, sulfur, indium, bismuth, and barium, which is applied in the field of infrared nonlinear optical materials and its preparation, and can solve problems such as no literature reports

Inactive Publication Date: 2015-06-17
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Novel infrared non-linear optical crystals barium bismuth indium sulfide
  • Novel infrared non-linear optical crystals barium bismuth indium sulfide
  • Novel infrared non-linear optical crystals barium bismuth indium sulfide

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Embodiment 1

[0014] Embodiment 1 Sulfur indium bismuth barium polycrystalline material preparation

[0015] According to the molar ratio of Ba:Bi:In:S is 2:1:1:5, weigh BaS, Bi, In and S, grind them, mix them evenly, put them into a quartz crucible, seal it after vacuuming, and put it in a high temperature furnace React at 800 to 950°C for several hours, and cool down to room temperature at a certain rate to obtain bright black-red polycrystalline material.

Embodiment 2

[0016] Example 2 Preparation of Sulfur Indium Bismuth Barium Single Crystal

[0017] According to the molar ratio of Ba:Bi:In:S is 2:1:1:5, weigh BaS, Bi, In and S, grind them, mix them evenly, put them into a quartz crucible, seal it after vacuuming, and put it in a high temperature furnace React at 800 to 950°C for several hours, then raise the temperature to about 1000°C for several hours, and then slowly lower it to room temperature to obtain more bright black-red flaky single crystals. Single crystal X-ray diffraction analysis shows that the compound is sulfur indium bismuth barium, the crystal parameters are as above, and the structure is as attached figure 1 shown.

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Abstract

The invention discloses novel infrared non-linear optical crystals barium bismuth indium sulfide and relates to the field of photoelectric materials. The chemical formula of the barium bismuth indium sulfide is Ba2BiInS5; the molecular weight is 758.78; the crystals belong to an orthorhombic system; the space group is Cmc21; and unit-cell parameters are that: a=4.2448(4)Angstrom, b=18.2304(13)Angstrom, c=12.68189(10)Angstrom, alpha= 90.00 degrees, beta= 90.00 degrees, gamma= 90.00 degrees, V=981.37(14)Angstrom<3>, and Z is 14. The crystals are prepared by a closed vacuum quartz crucible by a high-temperature reaction method. The barium bismuth indium sulfide crystals have excellent infrared non-linear optical performance; through the experiment, the powder secondary harmonic generation of the barium bismuth indium sulfide crystals is about 1 time that of potassium titanium oxide phosphate (KTP).

Description

technical field [0001] The invention belongs to infrared nonlinear optical material and its preparation. Background technique [0002] Mid- and far-infrared laser sources with a wavelength range of 2-20 μm have important applications in both civil and military high-tech fields. The 2-20μm mid- and far-infrared bands not only have windows for atmospheric transmission, but also serve as important "fingerprints" for various molecular vibration spectra. Tunable infrared laser sources with good coherence play an important role in applications such as trace gas detection, remote sensing, infrared lidar guidance, and electro-optical countermeasures. [0003] At present, based on the principle of nonlinear optics and the frequency conversion technology of infrared nonlinear optical crystals, it is the main way to generate 2-20 μm mid- and far-infrared band lasers. Commonly used nonlinear optical frequency conversion technologies include: sum frequency (SFG), frequency doubling (SH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/46C30B1/10
Inventor 耿磊程文旦张浩张炜龙何长振林晨升
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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