Second-harmonic generation in “Cubic” PLZT ceramics

Investigation of the depolarisation transition in Bi-based relaxor ferroelectrics

“…SHG data obtained from the unpoled Bi-based samples display no changes on cooling or heating through the region of T F , unlike PLZT 8/65/35 (Ref. 32) and Pb(Mg2 =3 Nb1 =3 )O 3 -based materals. 34 The reasons for this are unclear, but it may be that evidence of a transition around T F is seen only when there are remnant electric fields or stresses present.…”

“…30,31 In SHG experiments performed on lead-based relaxors such as PLZT 8/65/35, I SH falls on heating over the temperature range 0-50 C, associated with macroscopic depolarisation but not with a change in symmetry. 32 I SH also falls to a low but non-zero value as the material changes on heating from the non-ergodic to the ergodic state. 33 T B was found to be associated with a further reduction in the second harmonic intensity.…”

Harmonic electro-optic modulation using relaxor ferroelectric PLZT ceramics

“…The structural 9, 10 , dielectric 11,12,13 , electro-mechanical 14,15 and optical 16,17 properties of PLZT have been widely studied in recent years, and many peculiarities 18,19 were observed in their behavior. The electro-optic modulation 20,21,22,23 , as well as the second harmonic generation 24,25 of light in PLZT have been previously studied for use in lasers, spatial light modulators and other optical applications. Other papers 26,27 have been published on the nonlinear harmonic dielectric behavior of PLZT.…”