Crystal field analyses for the optical spectra of Mn4+ ion in Y3Al5O12 crystal Yang Mei, Wen-Chen Zheng, Ren-Ming Peng and Cheng-Fu Wei Eur. Phys. J. Appl. Phys., 69 3 (2015) 30702 Published online: 12 March 2015 DOI: 10.1051/epjap/2015140469