J. Rajagukguk, W. Chaiphaksa, J. Kaewkhao, R. Hidayat, and F. Fitrilawati, “Photopumped laser diode continuous wave for optical gain determination of Nd:YVO4 and Nd:YAG crystal medium”, J Met Mater Miner, vol. 29, no. 1, Mar. 2019.