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题名:
Photothermal techniques with a top-hat beam excitation
作者: Li, B.
刊名: EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
出版日期: 2008
卷号: 153, 页码:395-400
文章类型: Article
英文摘要: A flatly topped circular beam ("top-hat beam") is employed as the excitation beam for photothermal deflection and surface thermal lens techniques. The Fresnel diffraction model is applied to describe the photothermal signals. The theoretical comparison between a Gaussian beam and a top-hat beam excited photothermal signal amplitudes shows that the use of the top-hat beam excitation improves the measurement sensitivity of the photothermal techniques. Experimental results for both photothermal deflection and surface thermal lens are presented. The potential applications of the top-hat beam excited photothermal techniques are highlighted.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: THERMAL-LENS ; DIFFRACTION
收录类别: ISTP ; SCI
语种: 英语
WOS记录号: WOS:000254041300089
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3602
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China

Recommended Citation:
Li, B.. Photothermal techniques with a top-hat beam excitation[J]. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS,2008,153:395-400.
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