Phys. Rev. B 76, 205106 (2007) [8 pages]Static Pockels constants pij and pijk of CaF2 and BaF2 under strain from ab initio calculationsReceived 11 June 2007; revised 4 September 2007; published 13 November 2007 Ab initio results for the static (linear) elasto-optic or Pockels constants pij and (nonlinear) constants pijk for the fluorite systems CaF2 and BaF2 are presented from investigating the dielectric tensor under various forms and sizes of strain. The contribution to the Pockels constant p44 from the internal strain is important reducing the “bare” value by a factor of about 2 or more. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.76.205106
DOI:
10.1103/PhysRevB.76.205106
PACS:
78.20.Hp, 78.66.Nk, 71.15.Mb
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