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RSS FeedsMaterials, Vol. 12, Pages 4155: Linear Tuning of Phase-Matching Temperature in LiNbO3:Zr Crystals by MgO Co-Doping (Materials)

 
 

11 december 2019 16:02:42

 
Materials, Vol. 12, Pages 4155: Linear Tuning of Phase-Matching Temperature in LiNbO3:Zr Crystals by MgO Co-Doping (Materials)
 


We grew a series of co-doped LiNbO3 crystals with fixed 1.5 mol % ZrO2 and various MgO concentrations (1.0, 3.0, 4.0, 6.0 mol %), and investigated their optical properties and defect structures. By 3.0 mol % MgO co-doping, the optical damage resistance at 532 nm reached 6.5 × 106 W/cm2, while the phase-matching temperature for doubling 1064 nm was only 29.3 °C—close to room temperature—which was conducive to realizing the 90° phase matching at room temperature by slightly modulating the incident angle of the fundamental beam. Notably, we found that the phase-matching temperature increased linearly with the increase of MgO doping, and this linear dependence helped us to grow the high-quality crystal for room temperature 90° phase matching. Moreover, the defect analysis indicated that the linear tuning of phase-matching temperature might be attributed to Mg Li + + Zr Nb − neutral pairs in crystals.


 
69 viewsCategory: Chemistry, Physics
 
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