Crystal growth of neodymium yttrium aluminum borate with several neodymium contents

NdxY1-xAl3(BO3)4 (x ≤ 0.1) single crystals were grown from high temperature solution. Because the flux was volatile, the solvent evaporation as well as slow cooling method was used simultaneously. Inclusion-free crystals were grown below the cooling rate of 2 °C/day and in the <001> seed orientation. The Keff of Nd ion was measured as 0.4∼0.6 when CNd,sol. was 5∼15%. The solution with 7∼14% of CNd,sol. was suitable for the growth of NYAB crystals for a green laser generator. Several absorption peaks were confirmed by UV and FTIR spectroscopy.