| 激光在材料中感生的瞬态光声波和光热波 |
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| 引用本文： | 周复正,沈寿彭,于月华.激光在材料中感生的瞬态光声波和光热波[J].中国激光,1993,20(2):112-116. |
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| 作者姓名： | 周复正 沈寿彭 于月华 |
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| 作者单位： | 中国科学院上海光机所，中国科学院上海有机所，中国科学院上海技术物理所 上海 201800 |
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| 摘 要： | 研究了锁模激光在材料中产生频率达GHz的光声波和相应探测技术,用回波分析法无损坏测量了薄材料的厚度。研究了激光在材料中感生的光热波,热沉测量可用于解释材料的破坏机理。
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| 关 键 词： | 光声波 压电传感器 光热波 热电探测器 |
| 收稿时间： | 1992/1/3 |
Laser-induced transient photoacoustic and photothermal waves in thin films of material |
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| Zhou Fuzheng,Shen Shoupeng,Yu Yuehua.Laser-induced transient photoacoustic and photothermal waves in thin films of material[J].Chinese Journal of Lasers,1993,20(2):112-116. |
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| Authors: | Zhou Fuzheng Shen Shoupeng Yu Yuehua |
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| Abstract: | Photoacoustic wave with frequency of GHz and corresponding detection were researched. The PA in materials was excited by a mode-locked laser. The thickness of thin material was measured no- destructively by echo analysis. Also the laser induced photothermal wave studied. The measurement of sink energy can be used to illustrate damage mechanism of material. |
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| Keywords: | photoacoustic wave (PA) piezoelectric transducer photothermal wave (PT) pyroelectric detector |
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