An electrooptic image storage device using field induced reversible transitions between AFE and FE phases of PLZT ceramics

Temperature Dependence of Electric‐induced Light Scattering Performance for PLZT Ceramics

“…The similar phase transition of the PbZrO 3 crystal, PLZTS, and PMN-PZ-PT ceramics has ever been reported. 1,7 It is also found that the magnitude of the remnant polarization (P r ) and the coercive electric field (E c ) decreases sharply with the increase in the temperature, see Table 1, and when the temperature is above 40°C, the switching critical electric field (E A-F ) of AFE-to-FE phase transformation is increased slightly. 22,23 The temperature-dependent P-E hysteresis loops of the PLZT ceramics at 10 Hz are presented in Fig.…”

“…[1][2][3][4] to meet the demands of the developing laser technology. Another type of PLZT transparent ceramics with the composition of PLZT (7.6/70/30) was reported first by Kumada et al 7 These materials were opaque after removing the electric field and could not return to the original state with high optical transmittance until a proper reverse electric field was applied again. [5][6][7][8][9] Many works have been carried out on the PLZT (7.0/65/35) ceramics, which must be poled first and their optical transparency will be lowered greatly.…”

Investigation on the Electric‐Induced Light Scattering of PLZT Transparent Ceramics

“…One important type of the PLZT transparent ceramics systems involves the compositions that exhibit the electric‐induced light scattering performance, which is significantly different from those linear and quadratic EO compositions, that is, this type of PLZT have the coexisting antiferroelectric (AFE) and ferroelectric (FE) phases characterized by a morphotropic phase boundary (MPB) between the two phases, see Fig. S1 . Such type of PLZT transparent ceramics is attractive for EO applications using the electric‐induced light scattering phenomenon: the transparent material in the original nonscattering phase becomes opaque when a light scattering FE phase is induced by electric field .…”

“…5 Such type of PLZT transparent ceramics is attractive for EO applications using the electricinduced light scattering phenomenon: the transparent material in the original nonscattering phase becomes opaque when a light scattering FE phase is induced by electric field. 5 Specifically, the electric-induced FE state in PLZT 7.6/70/30 is stable after removing the electric field, and returns to the original state when a proper reverse electric field is applied, 6 whereas in PLZT 7.9/70/30 the induced FE state is not stable but only exists as long as the electric field is applied. 7 These PLZT ceramics with electric-induced light scattering performance are quite beneficial to the simplicity and miniaturization of the optical devices, as no polarizers are necessary in contrast to those linear and quadratic EO compositions that have to be placed between crossed polarizers.…”

Dielectric, electrooptic, and holographic properties close to the diffuse phase transition of PLZT 10/65/35

“…The only argument in favour to the last mentioned interpretation preferred by some authors [22, 24 4. An AFE phase is either orthorhombic or tetragonal [29], i.e. non-cubic and birefringent.…”