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Thermal and Nonlinear Optical Properties of Ca 4 YO(BO 3 ) 3
Author(s) -
Luo J.,
Fan S.J.,
Xie H.Q.,
Xiao K.C.,
Qian S.X.,
Zhong Z.W.,
Qiang G.X.,
Sun R.Y.,
Xu J.Y.
Publication year - 2001
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 - 10.1002/1521-4079(200111)36:11<1215::aid-crat1215>3.0.co;2-z
Subject(s) - anisotropy , thermal expansion , materials science , laser , thermal , atmospheric temperature range , crystal (programming language) , analytical chemistry (journal) , optics , nonlinear optical , nonlinear system , chemistry , thermodynamics , composite material , physics , quantum mechanics , chromatography , computer science , programming language
Ca 4 YO(BO 3 ) 3 (YCOB) crystals have been grown using the vertical Bridgman method. The thermal properties of YCOB were measured for the first time to our knowledge. The specific heat is 729.7 J/kg K at 373K. The average thermal expansion coefficients along the a, b and c axes are 9.9 × 10 ‐6 /K, 8.2 × 10 ‐6 /K and 12.8 × 10 ‐6 /K, respectively, in the temperature range of 293‐1173 K. The thermal conductivities along the a, b and c axes are 1.83 W/mK, 1.72 W/mK and 2.17 W/mK at 373 K. The anisotropy in the measured thermal conductivities of YCOB is consistent with the experimental results of the thermal expansion. The SHG of a Nd: YAG laser was compared with that of a KDP crystal. The effective nonlinear coefficients (d eff ) of YCOB in type I phase matching directions of (θ, ϕ) = (66.3°, 143.5°) and (65.9°, 36.5°) were estimated to be 1.45 pm/V and 0.91 pm/V, respectively. The bulk damage threshold was observed as 85 GW/cm 2 for single pulse of a Nd:YAG laser with 10 ns pulseduration.