Two photon excited upconversion luminescence of Mn2+ doped germanate glass by in 下载 _梧桐雨 15 0 PDF 2021-02-24 01:02:12 Two-photon-excited upconversion luminescence of Mn2+-doped germanate glass by infrared femtosecond laser irradiation 立即下载 微信扫一扫:分享 微信里点“发现”,扫一下 二维码便可将本文分享至朋友圈。