Improvement of two-color holography performance in congruent lithium niobate by doping with indium

Summary form only given. As compared with previously reported data, the two-color holography performance of congruent LiNbO/sub 3/ can be significantly improved by doping the crystal with In. This improvement can be attributed to the prolonged lifetime of small polarons and the increased photoconductivity of LiNbO/sub 3/:In.