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Optical Evaluation of Divalent and Trivalent Eu Ions Doped in CaF 2 Crystals Using Multiphoton Luminescence 3D Distribution Measurements
Author(s) -
Ito Hiroaki,
Tanaka Miho,
Ono Shingo,
Yamaji Akihiro,
Kurosawa Shunsuke,
Yoshikawa Akira
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.202070032
Subject(s) - luminescence , divalent , doping , ion , materials science , crystal (programming language) , analytical chemistry (journal) , chemistry , optoelectronics , organic chemistry , metallurgy , chromatography , computer science , programming language
The distributions of divalent and trivalent Eu ions doped in CaF 2 crystals were evaluated by Shingo Ono and co‐workers (article number 1900477 ) by using a multiphoton microscope. The cover page shows the multiphoton luminescence mappings of divalent Eu ions doped in CaF 2 crystals grown by the melt solidification method (upper side) and the micropulling down method (lower side). In the upper side of multiphoton luminescence mappings, it is confirmed that the size of the mesh‐like pattern increases with the increase of cooling time. In the lower side of multiphoton luminescence mappings, the relaxation of strain caused by the difference in lattice constant between CaF 2 and the seed crystal is confirmed.