Premium
Ternary Colquiriite Type Fluorides as Laser Hosts
Author(s) -
Klimm D.,
Reiche P.
Publication year - 1999
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(199902)34:2<145::aid-crat145>3.0.co;2-1
Subject(s) - stoichiometry , ternary operation , materials science , impurity , lasing threshold , evaporation , laser , phase diagram , czochralski method , lithium (medication) , aluminium , lithium borate , phase (matter) , analytical chemistry (journal) , crystallography , metallurgy , chemistry , optics , optoelectronics , silicon , doping , thermodynamics , wavelength , borate glass , endocrinology , computer science , chromatography , programming language , medicine , physics , organic chemistry
The Cr 3+ :LiCaAlF 6 (Cr:LiCAF) and Cr 3+ :LiSrAlF 6 (Cr:LiSAF) laser host crystals can be grown by the Czochralski technique. Problems result from the evaporation of lithium‐aluminium‐fluorides during the growth process and a corresponding stoichiometry shift of the melt towards the CaF 2 (SrF 2 ) corner of the ternary concentration triangle. Both Cr:LiCAF, and to a lower extend also Cr:LiSAF, contain micron‐sized defects that disturb the lasing efficiency heavily. The defects are assumed to be related to water and/or oxygen impurities within the starting materials and growth atmosphere and to peculiarities of the LiF – CaF 2 – AlF 3 ternary phase diagram.