Nonlinear piezoelectricity of PZT ceramics and acoustic phase conjugate waves

被引：6

作者：

Yamamoto, K ^{[1
]}

Kokubo, A ^{[1
]}

Ohno, M ^{[1
]}

Sakai, K ^{[1
]}

Takagi, K ^{[1
]}

机构：

[1] OLYMPUS OPT CO LTD,HACHIOJI,TOKYO 192,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 5B期

关键词：

ultrasonic propagation; phase conjugate phenomenon; nonlinear piezoelectricity; PZT ceramics; schlieren visualization;

D O I：

10.1143/JJAP.35.3210

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We succeeded in generating acoustic phase conjugate waves with nonlinear PZT (Pb(ZrxTi1-x)O-3) ceramics. The efficiency of the phase conjugator, which is defined as the amplitude ratio of the phase conjugate wave to the incident wave, is found to be proportional to the variation in sound velocity under an applied electric field. We measured the sound velocity in PZT ceramics with different compositions by varying the applied electric field. The results correlated well with the observed efficiency. The PZT ceramics are generally more capable than LiNbO3 crystal of generating phase conjugate waves. We confirmed the time-reversal property of the phase conjugate waves by visualizing its propagation with the stroboscopic schlieren technique.

引用

页码：3210 / 3213

页数：4

共 4 条

[1]

Fisher RA., 1983, OPTICAL PHASE CONJUG

[2] ACOUSTIC PHASE-CONJUGATION IN HIGHLY NONLINEAR PZT PIEZOELECTRIC CERAMICS [J].