Reduction of photorefractivity in Hf:LiNbO3 crystals is demonstrated to be due to increased photoconductivity; threshold value of HfO2 doping is found to be 4 mol %. Heating effects must be carefully considered for measurements interpretation.
© 2005 Optical Society of America
P. Minzioni, L. Razzari, I. Cristiani, V. Degiorgio, and E. P. Kokanyan, "Photorefractivity of Hafnium-Doped Congruent Lithium Niobate Crystals," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CMN2.
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