| 气体等离子体辐射光声信号检测与分析 |
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| 引用本文： | 吴四清,沈 波,熊钢,徐武雄.气体等离子体辐射光声信号检测与分析[J].激光与红外,2017,47(4):428-431. |
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| 作者姓名： | 吴四清 沈 波 熊钢 徐武雄 |
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| 作者单位： | 湖北科技学院电子与信息工程学院,湖北 咸宁 437100；华中科技大学武汉光电国家实验室,湖北 武汉 430074 |
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| 基金项目： | 湖北科技学院博士启动基金项目(No.BK1523)资助 |
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| 摘 要： | 气体等离子体做为一种新的辐射源,因具有辐射范围宽等优点而备受关注。本文对强飞秒激光脉冲诱导大气等离子体辐射光声信号现象进行了探究,用实验的方法探测和分析了激光脉冲能量、偏振方向以及声传输的径向距离对光声信号强度的影响。
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| 关 键 词： | 飞秒激光脉冲 气体等离子体 光声信号 |
Detection and analysis of photoacoustic signal from gas plasma |
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| WU Si-qing,SHEN Bo,XIONG Gang,XU Wu-xiong.Detection and analysis of photoacoustic signal from gas plasma[J].Laser & Infrared,2017,47(4):428-431. |
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| Authors: | WU Si-qing SHEN Bo XIONG Gang XU Wu-xiong |
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| Abstract: | As a new radiation source,gas plasma has attracted considerable attentions due to its wide coverage in spectrum. The phenomenon of photoacoustic signal from air plasma induced by intense femtosecond laser pulse was studied. The influences of laser pulse energy,polarization direction and radial distance on photoacoustic signal intensity were studied and analyzed by the experiments. |
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| Keywords: | femtosecond laser pulse gas plasma photoacoustic signal |
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