作者: J.F. Gomes , A.M.O. Lima , M. Sandrini , A.N. Medina , A. Steimacher
DOI: 10.1016/J.OPTMAT.2017.02.010
关键词:
摘要: … characteristic bands of Er 3+ ions. Furthermore, these spectra in NIR region show a decrease of hydroxyl groups … ∼45 (2θ) are attributed to the glass structural groups, as follows. Borate …