ACTA

Light-Induced Gratings in CdMnTeSe:In Crystals

B. Koziarska-Glinka^a, M. Ponder^a, T. Wojtowicz^a, I. Miotkowski^b, J.M. Langer^a and A. Suchocki^a
^aInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
^bPurdue University, West Lafayette, Indiana, 46 566, USA

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We show that DX-like centers in Cd_1-xMn_xTe_1-ySe_x:In crystal can be used in writing volume holographic gratings. The scattering efficiency is higher than 10% which proves the dispersive character of the light-induced gratings. Two different metastable centers with different lattice relaxation were found in the crystal. Measurements of the power dependence of the degenerate four-wave mixing scattering efficiency testify that both of these centers have negative U properties.

DOI: 10.12693/APhysPolA.92.883
PACS numbers: 74.62.Dh, 61.72.Ji, 42.65.Hw