P. Xie et al., SPATIAL MODULATION OF GAUSSIAN-BEAM IN BATIO3-CE CRYSTAL WITH EXTERNAL ELECTRIC-FIELD, Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences, 39(11), 1996, pp. 1178-1182
Numerical and experimental evidence indicates that an extraordinarily
polarized Gaussian beam, after passing through a BaTiO3:Ce crystal wit
h an externally applied electric field, on show spatial modulation and
self-focusing in the plane of extraordinary polarization. The numeric
al and experimental results show remarkable agreement with each other.