Title :
Engineered ferroelectric domain configurations in KTiOPO4 crystals for nonlinear optical converters
Abstract :
A significant decrease is observed in the dielectric dispersion, conductivity, coercive and internal fields of near stoichiometric KTiOPO 4 crystals. A periodic domain structure with a period of 24.7 μm was fabricated on a 10-mm long crystal by electric field poling. Whereas standard flux-grown KTiOPO4 crystals can be periodically poled only at low temperatures (near 170 K), the periodic poling in this case was successfully performed near room temperature at a much lower electric field
Keywords :
electric domains; electric fields; electrical conductivity; ferroelectric materials; optical elements; oxygen compounds; permittivity; phosphorus compounds; potassium compounds; stoichiometry; titanium compounds; 24.7 mum; KTiOPO4; coercive fields; conductivity; dielectric dispersion; electric field; electric field poling; ferroelectric domain configurations; flux-grown crystals; internal fields; low temperatures; nonlinear optical converters; periodic domain structure; periodic poling; room temperature; stoichiometric crystals; Conductivity; Crystals; Dielectrics; Ferroelectric materials; Lattices; Nonlinear optics; Periodic structures; Polarization; Switching circuits; Temperature;
Conference_Titel :
Electrical and electronic engineers in israel, 2000. the 21st ieee convention of the
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-5842-2
DOI :
10.1109/EEEI.2000.924478
