| 利用激光超声声谱技术研究凝聚态物质 |
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| 引用本文： | 徐晓东,孙利,水修基,张淑仪,陈慧兰.利用激光超声声谱技术研究凝聚态物质[J].科学技术与工程,2003,3(3):262-263268. |
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| 作者姓名： | 徐晓东 孙利 水修基 张淑仪 陈慧兰 |
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| 作者单位： | 1. 南京大学近代声学国家重点实验室,南京,210093
2. 南京大学配位化学国家重点实验室,南京,210093 |
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| 基金项目： | 国家自然科学基金(10174038) |
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| 摘 要： | 利用脉冲激光在凝聚态物质中激发起声，并利用光干涉仪或压电换能器接收脉冲超声信号，即激光超声声谱技术，已广泛用于研究凝聚态物质的弹性性质和结构检测。近来特别发展了利用激光超声技术定征固体材料的热学特性，同时发展用于研究具有生物活性的物质的光解反应动力学和热力学过程，获得了非常满意的结果。
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| 关 键 词： | 凝聚态 激光超声声谱 弹性性质 结构检测 光解反应 热扩散 热学特性 |
| 文章编号： | 1671-1815(2003)03-0262-03 |
Application of Laser-ultrasonic Techniques to Study Condensed Materials |
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| ZHANG Shuyi,CHEN Huilan,XU Xiaodong,SUN Li,SHUI Xiuji State Key Lab of Modern Acoustics,State Key Lab of Coordinate Chemistry,Nanjing University,Nanjing.Application of Laser-ultrasonic Techniques to Study Condensed Materials[J].Science Technology and Engineering,2003,3(3):262-263268. |
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| Authors: | ZHANG Shuyi CHEN Huilan XU Xiaodong SUN Li SHUI Xiuji State Key Lab of Modern Acoustics State Key Lab of Coordinate Chemistry Nanjing University Nanjing |
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| Institution: | ZHANG Shuyi,CHEN Huilan,XU Xiaodong,SUN Li,SHUI Xiuji State Key Lab of Modern Acoustics,State Key Lab of Coordinate Chemistry,Nanjing University, Nanjing 210093 |
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| Abstract: | The elastic properties and structures of condensed materials have been studied by ultrasonic waves excited by apulsed laser and detected by an optical interferometers or a piezoelectric transducer, i.e.,laser-ultrasonic spectroscopic tech-nique. Recently the laser ultrasonic techniques are particularly developed to characterize the thermal property of solid materialsand also to study dynamic and thermodynamic processes of photolysis reactions of organic materials with biological activity, bywhich several satisfactory results are obtained. |
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| Keywords: | laser ultrasonics condensed material thermal diffusivity photolysis reaction |
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