Erbium Oxide Nanoplates as a Sonosensitizer Devoid of PhotosensitivityYingfan Dai & Ruihao Yang & Zeinab Marfavi & Quanjie Lv & Yijun Han & Kang Sun & Danhong Wu & Ke TaoPDF
Erbium-Doped Fiber Amplifiers: Fundamentals and Technology (Optics and Photonics)Philippe C. Becker, N. Anders Olsson, Jay R. Simpson1999PDF