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Preparation method of Er<3+>, Pr<3+> and Tm<3+>-doped yttrium lanthanum oxidetransparent ceramic for lasers

A technology of lanthanum yttrium oxide and transparent ceramics, which is applied in the field of special ceramics manufacturing technology, and can solve the problems of difficult to obtain high-efficiency 2.7μm laser and long energy level life

Inactive Publication Date: 2014-08-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve Er 3+ doped laser material 4 I 13 / 2 Due to the long life of the energy level and the difficulty in obtaining high-efficiency 2.7μm lasers, an Er 3+ 、Pr 3+ and Tm 3+ Three-doped lanthanum oxide transparent ceramic and preparation method thereof

Method used

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  • Preparation method of Er&lt;3+&gt;, Pr&lt;3+&gt; and Tm&lt;3+&gt;-doped yttrium lanthanum oxidetransparent ceramic for lasers

Examples

Experimental program
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Embodiment 1

[0017] The process and steps of the present embodiment are described as follows:

[0018] 1. Using high-purity Er 2 o 3 、Pr 6 o 11 、Tm 2 o 3 , La 2 o 3 and Y 2 o 3 Nano powder is raw material, and the molar ratio of each powder is according to chemical molecular formula (Er x PR y T m z Y 0.9-x-y-z La 0.1 ) 2 o 3 , where x = 0.02, y = 0.02, z = 0.02;

[0019] 2. Stir and mix the powder raw materials prepared according to the above formula, dissolve the mixture in absolute ethanol, and mix and grind for 8 hours with a ball mill. During ball milling, the mass ratio of the ball mill to the powder is 1:2, and the ball milling speed is 50 rpm;

[0020]3. Dry the ball-milled powder in an oven, then pre-fire at 1200°C for 8-10 hours;

[0021] 4. Granulate the mixture after pre-burning, and press it into a sheet-like sample under 200MPa cold isostatic pressing;

[0022] 5. Place the above sample in a hydrogen furnace or a vacuum furnace for sintering, the sintering ...

Embodiment 2

[0024] The processing steps of the present embodiment are exactly the same as the above-mentioned embodiment 1, and the difference is (Er x PR y T m z Y 0.9-x-y-z La 0.1 ) 2 o 3 In the formula, x=0.01, y=0.01, z=0.01; sintering temperature 1600 ℃, holding time 45h, obtain dense (Er 0.01 PR 0.01 T m 0.01 Y 0.87 La 0.1 ) 2 o 3 Transparent ceramic.

Embodiment 3

[0026] The processing steps of the present embodiment are exactly the same as the above-mentioned embodiment 1, and the difference is (Er x PR y T m z Y 0.9-x-y-z La 0.1 ) 2 o 3 x=0.05 in the formula, y=0.05, z=0.05; Sintering temperature 1630 ℃, holding time 40h, obtain dense (Er 0.05 PR 0.05 T m 0.05 Y 0.75 La 0.1 ) 2 o 3 Transparent ceramic.

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Abstract

The invention relates to Er<3+>, Pr<3+> and Tm<3+>-doped yttrium lanthanum oxidetransparent ceramic capable of being applied to intermediate infrared 2.7-mu m waveband lasers and a preparation method of the transparent ceramic and belongs to the field of special ceramic material manufacturing technologies. The method is characterized in that high-purity Er2O3, Pr6O11, Tm2O3, La2O3 and Y2O3 nano-powder is used as raw materials, and an Er<3+>, Pr<3+> and Tm<3+>-doped yttrium lanthanum oxidetransparent ceramic material is prepared with a solid-state sintering method under the condition of the lower temperature (1550-1650 DEG C). According to the Er<3+>, Pr<3+> and Tm<3+>-doped yttrium lanthanum oxidetransparent ceramic prepared with the method, tests prove that the ceramic has a broader emission bandnear 2.7 mu m and can be used as the2.7-mu m wavebandintermediate infrared laser material.

Description

technical field [0001] The invention relates to an Er for mid-infrared band laser 3+ 、Pr 3+ and Tm 3+ The invention discloses a preparation method of triple-doped lanthanum oxide transparent ceramics, which belongs to the technical field of special ceramics manufacturing technology. Background technique [0002] In recent years, 2~3μm laser materials have been highly valued at home and abroad. The mid-infrared laser with a wavelength of 2~3μm is located in the transmission window of the atmosphere, covering the characteristic spectral lines of many important gas molecules, and is also extremely safe for human eyes, so it has great potential in military, medical, optical communication, environmental monitoring and other fields. Very broad application prospects and important application value. which doped with Er 3+ As an excellent working medium for mid-infrared lasers, laser materials have attracted people's attention for many years. Er 3+ Ionic 4 I 11 / 2 → 4 I 13 / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/505C04B35/622
Inventor 段琪瑱杨秋红陈韫佳陆神洲刘强赵广根
Owner SHANGHAI UNIV
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