Cr<3+>:KMgSc(WO4)3 doped tunable laser crystal and method for preparing same
A technology of laser crystals and potassium chromate tungstate, applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve the problems of small emission cross section, difficult growth, and inability to promote industrial applications, etc., to achieve tunable laser band wide, stable growth process, and excellent optical properties
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[0019] Example 1: Using K 2 W 2 O 7 The doping concentration for flux growth is 1.0at.%Cr 3+ Cr 3+ : KMgSc(WO 4 ) 3 Laser crystal.
[0020] The growth material is KMgSc(WO 4 ) 3 : K 2 W 2 O 7 =1:4 (molar ratio), doped with 1.0at% Cr 3+ ion. Using the flux method, in the φ60×50mm platinum crucible, the growth temperature is between 820~750℃, and the crystal rotation speed is 5 revolutions per minute at a cooling rate of 1℃ / day to grow a size of 25×25× 10mm 3 Of high quality Cr 3+ :KMgSc(WO 4 ) 3 Crystal. ICP (plasma emission spectroscopy) analysis shows that Cr in the crystal 3+ The ion content is 0.5 at%.
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[0021] Example 2: Using K 2 W 2 O 7 The doping concentration for flux growth is 2.0at.%Cr 3+ Cr 3+ : KMgSc(WO 4 ) 3 Laser crystal.
[0022] The growth material is KMgSc(WO 4 ) 3 : K 2 W 2 O 7 =2:3 (molar ratio), doped with 2.0at% Cr 3+ ion. Using the flux method, in the φ60×50mm platinum crucible, the growth temperature is between 850~770℃, and the crystal speed is 30 rpm at a cooling rate of 3℃ / day to grow a size of 15×15× 10mm 3 Of high quality Cr 3+ :KMgSc(WO 4 ) 3 Crystal. ICP (plasma emission spectroscopy) analysis shows that Cr in the crystal 3+ The ion content is 1.0 at%.
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