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Er 3+ ‐doped CaF 2 polycrystalline ceramic with perfect transparency for mid‐infrared laser
Author(s) -
Jiang Yiguang,
Jiang Benxue,
Jiang Nan,
Jiang Dapeng,
Li Jiang,
Su Liangbi,
Zhang Long
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17308
Subject(s) - crystallite , ceramic , materials science , infrared , doping , transmittance , transparent ceramics , optoelectronics , laser , gain , composite material , optics , active laser medium , metallurgy , laser power scaling , physics
Er 3+ ‐doped CaF 2 transparent ceramics are promising mid‐infrared gain materials because of their utra‐low phonon energy as well as excellent physical, chemical, and optical properties. However, existing hot‐pressed and hot‐formed CaF 2 ceramics are very difficult to be used in practical applications due to residual pores and weak polycrystallization, respectively. Here, we developed the high quality Er 3+ ‐doped CaF 2 transparent polycrystalline ceramic by single crystal ceramization. The sample exhibits obvious polycrystalline structure, good mechanical properties, perfectly transmittance, and excellent mid‐infrared performance, which provides significant and wide‐ranging opportunities for advanced mid‐infrared gain materials.