Neodymium boracic acid oxygen calcium gadolinium lanthanum doped laser crystal and preparation method and usage thereof
A technology of neodymium oxycalcium borate, gadolinium lanthanum, and laser crystals, which can be used in crystal growth, chemical instruments and methods, and single crystal growth, and can solve problems such as narrow absorption lines and unsuitability for LD pumping
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Embodiment 1
[0012] Example 1: The doping concentration of pulling method growth is 3.0at.%Nd 3+ Nd 3+ :Gd 0.84 La 0.16 Ca 4 O(BO 3 ) 3 laser crystals.
[0013] Gd that will be accurately weighed according to the ratio 2 o 3 , La 2 o 3 , CaCO 3 、H 3 BO 3 and Nd 2 o 3 Mix and grind evenly, after tableting, put in φ60×40mm 3 In a platinum crucible, the solid phase reaction was carried out at 1000°C for 12 hours in a muffle furnace, and then the temperature was raised to 1200°C for 24 hours. Put the synthesized above samples into the pulling furnace, adopt the pulling method, under N 2 In the atmosphere, the growth temperature is about 1470°C, the crystal rotation speed is 5-20 rpm, and the pulling speed is 0.5-2 mm / hour, and the size is 30×25×18mm. 3 of high quality Nd 3+ 3.0 at.% Nd 3+ :Gd 0.84 La 0.16 Ca 4 O(BO 3 ) 3 crystals.
Embodiment 2
[0014] Example 2: The doping concentration is 3.0 at.% Nd grown by pulling method 3+ Nd 3+ :Gd 0.67 La 0.33 Ca 4 O(BO 3 ) 3 laser crystals.
[0015] Gd that will be accurately weighed according to the ratio 2 o 3 , La 2 o 3 , CaCO 3 、H 3 BO 3 and Nd 2 o 3 Mix and grind evenly, after tableting, put in φ60×40mm 3 In a platinum crucible, the solid phase reaction was carried out at 1000°C for 10 hours in a muffle furnace, and then the temperature was raised to 1200°C for 24 hours. Put the synthesized above samples into the pulling furnace, adopt the pulling method, under N 2 In the atmosphere, the growth temperature is about 1460°C, the crystal rotation speed is 5-20 rpm, and the pulling speed is 0.5-2 mm / hour, and the size is 32×23×23mm. 3 of high quality Nd 3+ 3.0 at.% Nd 3+ :Gd 0.67 La 0.33 Ca 4 O(BO 3 ) 3 crystals.
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