Title :
Growth and properties of tungsten-bronze ferroelectric potassium lithium niobate single crystals
Author :
Karaki, Toinoah ; Miyashita, Kenya ; Nakatsuji, Mayumi ; Adachi, Masatoshi ; Kawabata, Akira
Author_Institution :
Dept. of Electron. & Inf. Eng., Toyama Univ., Japan
Abstract :
Potassium lithium niobate (KLN) single crystals were grown from a melt with potassium and lithium enriched composition using the rf-heating Czochralski technique. The growth and electric poling conditions were discussed. The transparent crystal was pale-yellow with an absorption edge at 376 nm, and showed a very small optical absorption in the 420-900 nm region. The electrooptic and nonlinear optic coefficients were measured. The deviation of composition in the crystals was investigated by measuring the change of the temperature and phase matching angle of the harmonic generation
Keywords :
absorption coefficients; crystal growth from melt; dielectric polarisation; electro-optical effects; ferroelectric Curie temperature; ferroelectric materials; lithium compounds; optical harmonic generation; optical phase matching; potassium compounds; stoichiometry; 376 to 900 nm; K3Li2Nb5O15; KLN single crystals; absorption edge; composition; electric poling conditions; electro-optic coefficients; growth; harmonic generation; melt; nonlinear optic coefficients; optical absorption; pale-yellow; phase matching angle; rf-heating Czochralski technique; transparent crystal; tungsten-bronze ferroelectric potassium lithium niobate single crystals; Absorption; Crystals; Ferroelectric materials; Fiber nonlinear optics; Lithium niobate; Niobium compounds; Nonlinear optics; Optical harmonic generation; Phase measurement; Temperature;
Conference_Titel :
Applications of Ferroelectrics, 1998. ISAF 98. Proceedings of the Eleventh IEEE International Symposium on
Conference_Location :
Montreux
Print_ISBN :
0-7803-4959-8
DOI :
10.1109/ISAF.1998.786759
