Blended ytterbium boric acid Gd yttrium oxygen calcium self-frequency doubling laser crystal

A technology of laser crystal and ytterbium-doped boric acid, which is applied in crystal growth, single crystal growth, single crystal growth, etc., to achieve the effect of short growth cycle

A technology of laser crystal and ytterbium-doped boric acid, which is applied in crystal growth, single crystal growth, single crystal growth, etc., to achieve the effect of short growth cycle

CN1609287AInactive Publication Date: 2005-04-27FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: The doping concentration is 5.0 at.% Yb grown by pulling method 3+ Ionic Yb 3+ :Gd 1-x Y x Ca 4 O(BO 3 ) 3 Self frequency doubling laser crystal.

[0017] The x value is 0.275, which will accurately weigh the CaCO according to the ratio 3 、H 3 BO 3 , Yb 2 o 3 , Y 2 o 3 、Gd 2 o 3 Mix and grind evenly. After tableting, perform solid-phase synthesis reaction at 1000°C in a muffle furnace for 18 hours, take out and mash, mix and tablet, and place in a muffle furnace at a constant temperature of 1200°C for 20 hours. Put the raw materials synthesized twice into the iridium pot, and use the pulling method in an inert gas (N 2 ) in a protective atmosphere, using (010) oriented seed crystals, the growth temperature is 1496°C, the pulling speed is 0.5mm / h, and the rotation speed is 25rmp, and high-quality Yb with a crystal size of Φ30.0mm×57.7mm is grown. 3+ Doping concentration of 5.0at.% Yb 3+ :GdYCa 4 O(BO 3 ) 3 crystals.

Embodiment 2

[0018] Example 2: The doping concentration is 20.0 at.% Yb grown by pulling method 3+ Ionic Yb 3+ :Gd 1-x Y x Ca 4 O(BO 3 ) 3 Self frequency doubling laser crystal.

[0019] The x value is 0.425, which will accurately weigh the CaCO according to the ratio 3 、H 3 BO 3 , Yb 2 o 3 , Y 2 o 3 、Gd 2 o 3Mix and grind evenly, and perform solid-phase synthesis reaction at 1050° C. for 16 hours in a muffle furnace after tableting. The synthesized samples were pressed into tablets again, and placed in a muffle furnace at a constant temperature of 1200°C for 28 hours. Using the pulling method to grow in an inert gas (Ar) protective atmosphere, using a seed crystal in the (201) direction, the growth temperature is 1510°C, the pulling speed is 1.5mm / h, and the rotation speed is 30rmp, and a Φ35.3mm×60.0mm crystal is grown. High quality Yb 3+ Doping concentration of 20.0at.% Yb 3+ :GdYCa 4 O(BO 3 ) 3 crystals.

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Abstract

The present invention relates to artificial crystal, and is especially one kind of self-frequency doubling laser crystal material Yb3+:Gd1-xYxCa4O(BO3)3 and its preparation process. The crystal belongs to the moniclinic system, has space group Cm; has the crystal cell parameter of a=8.080 angstrom, b=16.014 angstrom, c=3.539 angstrom, beta=101.18 deg, and V=449.0 cubic angstrom; and refractive index of 1.69. The monocrystal is grown in Czochralski process at the grown temperature of 1481-1550 deg.c, pulling rate of 0.5-3 mm/hr, crystal rotation speed of 15-40 rpm. The monocrystal has high quality and large size.

Description

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Claims

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Application Information

Patent Timeline
27 Apr 2005
Publication
CN1609287A