Precise Determination of Acoustical Physical Constants of LiNbO_3 and LiTaO_3 Single Crystals

LiNbO_3和LiTaO_3单晶声学物理常数的精确测定

基本信息

  • 批准号:
    07455127
  • 负责人:
  • 金额:
    $ 4.74万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1995
  • 资助国家:
    日本
  • 起止时间:
    1995 至 1996
  • 项目状态:
    已结题

项目摘要

In this study, we have developed a new method of determining the acoustical physical constants associated with piezoelectric crystals, using two systems of line-focus-beam acoustic microscopy and bulk ultrasonic spectroscopy, and have determined precisely all the independent constants of LiNbO_3 and LiTaO_3 single crystals, including the density.1. In order to improve reliability and reproducibility of the two systems, the measurement environment of temperature has been stabilized and a laser interferometer has been introduced to measure the absolute distance. Absolute accuracy of better than (]SY.+-。[)0.01% in velocity has been achieved.2. Many crystalline plane specimens of LiNbO_3 and LiTaO_3 with optically polished surfaces and excellent parallelism of front and back surfaces have been prepared from one ingot for each crystal.3. A new method of determining the acoustical physical constants, viz., stiffness, piezoelectric, and dielectric constants, has been developed using the two systems for velocity measurements.4. The acoustical physical constants of LiNbO_3 and LiTaO_3 have been determined, which provide five significant digits for bulk and surface acoustic wave velocities.5. The elastic constants for multi-domain LiTaO_3 crystals have been also determined, for the first time, and have been compared with those for single-domain LiTaO_3 crystals. It has been shown that the poling operation to introduce piezoelectricity is responsible for the differences of elastic properties between single-and multi-domain crystals.
本研究发展了一种测定压电晶体声学物理常数的新方法,利用线聚焦束声学显微镜和体超声光谱两种系统,精确测定了LiNbO_3和LiTaO_3单晶的所有独立常数,包括密度.为了提高两种系统的可靠性和重复性,稳定了温度测量环境,并引入了激光干涉仪测量绝对距离。绝对精度优于(]SY. ±. [)0.01%的速度已被忽略。用一个晶锭制备了许多具有光学抛光表面和良好的前后表面平行度的LiNbO_3和LiTaO_3晶面样品.提出了一种确定声物理常数的新方法,刚度,压电,和介电常数,已开发使用这两个系统的速度测量。测定了LiNbO_3和LiTaO_3的声物理常数,给出了体声速和声表面波声速的五位有效数字.首次测定了多畴LiTaO_3晶体的弹性常数,并与单畴LiTaO_3晶体的弹性常数进行了比较。结果表明,引入压电效应的极化操作是造成单畴和多畴晶体弹性性质差异的主要原因。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
J. Kushibiki: "Elastic Properties of Single-and Multi-Domain Crystals of LiTaO_3" J. Appl. Phys.(in press).
J. Kushibiki:“LiTaO_3 单域和多域晶体的弹性性能” J. Appl。
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    0
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J.Kushibiki: "Elastic Properties of Single-and Multi-Domain Crystals of LiTaO_3" J.Appl.Phys.(in press).
J.Kushibiki:“LiTaO_3 单域和多域晶体的弹性”J.Appl.Phys.(出版中)。
  • DOI:
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    0
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  • 通讯作者:
J.Kushibiki: ""Elastic Properties of Single-and Multi-Domain Crystals of LiTaO_3"" J.Appl.Phys.(in press).
J.Kushibiki:“LiTaO_3 单域和多域晶体的弹性性能”J.Appl.Phys.(出版中)。
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KUSHIBIKI Jun-ichi其他文献

KUSHIBIKI Jun-ichi的其他文献

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{{ truncateString('KUSHIBIKI Jun-ichi', 18)}}的其他基金

Development of an optical cavity with residual strain free for optical frequency standards
开发符合光频率标准的无残余应变光学腔
  • 批准号:
    25630167
  • 财政年份:
    2013
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Evaluation of glass thin films by the ultrasonic microspectroscopy technology
超声显微光谱技术评价玻璃薄膜
  • 批准号:
    23656260
  • 财政年份:
    2011
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Ultrasonic Microspectroscopy of Wide Bandgap Semiconductor Materials
宽带隙半导体材料的超声显微光谱
  • 批准号:
    23246075
  • 财政年份:
    2011
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Ultrasonic Microspectroscopy of Ultra-High-Quality Synthetic a-Quartz
超高品质合成 a-石英的超声波显微光谱
  • 批准号:
    13555085
  • 财政年份:
    2001
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a Method to Evaluate the Surface of Single Crystal Substrates for Super-High-Frequency SAW Devices by UMS Technology
利用 UMS 技术开发评估超高频 SAW 器件单晶衬底表面的方法
  • 批准号:
    12450119
  • 财政年份:
    2000
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of Ultrasonic Microspectroscopy for Characterization of Layered and Damaged Surfaces on Single Crystal Substrates
用于表征单晶基底上的层状和损伤表面的超声波显微光谱学的发展
  • 批准号:
    10555099
  • 财政年份:
    1998
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ultrasonic Microspectroscopy for High-Precision Surface Characterization of Substrates for Electronics Devices
用于电子设备基材高精度表面表征的超声波显微光谱
  • 批准号:
    09450120
  • 财政年份:
    1997
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ultrasonic Microspectroscopy of LiTaO_3 Single Crystals for Optoelectronic Devices
光电器件用LiTaO_3单晶的超声显微光谱
  • 批准号:
    07555408
  • 财政年份:
    1995
  • 资助金额:
    $ 4.74万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
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