Spectroscopic investigations of near-infrared emission from Nd3+-doped zinc-phosphate glasses: Judd-Ofelt evaluation by Mahraz, Zahra Ashur Said, Sazali, E. S., Sahar, M. R., Amran, Nur Ulfah, Yaacob, S. N. S., Aziz, Siti Maisarah, Mawlud, S. Q., Noor, F. M., Harun, A. N.