[1] Mougel F, Aka G, Kahn-Harari A et al.. Infrared laser performance and self-frequency-doubling of Nd3+:Gd4O(BO3)3. Opt. Materials, 1997, 8(9):161~173
[2] Vivien D, Mougel F, Aka G et al.. Neodymium-activated Ca4GdB3O10(Nd:GdCOB): A multifunctional material exhibiting both laser and nonlinear optical properties. Laser Phys., 1998, 8(3):759~763