| 从高斯光束到帽顶光束Z扫描:分析测量灵敏度和可靠性 |
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| 引用本文： | 左平,顾兵,谈苏庆,黄晓琴.从高斯光束到帽顶光束Z扫描:分析测量灵敏度和可靠性[J].南京师大学报,2009,32(1). |
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| 作者姓名： | 左平 顾兵 谈苏庆 黄晓琴 |
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| 作者单位： | 南京师范大学物理科学与技术学院,江苏省光电技术重点实验室,江苏,南京,210097
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| 基金项目： | 国家自然科学基金，江苏省高校自然科学研究计划 |
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| 摘 要： | 利用快速傅里叶变换方法分析了Z扫描归一化透过率曲线.研究了入射光束空间分布对Z扫描测量灵敏度和可靠性的影响.提出了截取高斯光束(即近帽顶光束)Z扫描表征技术,该技术不仅提高了测量灵敏度和可靠性,而且提高了光能量的利用率.
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| 关 键 词： | Z扫描 灵敏度 可靠性 近帽顶光束 |
From Gaussian Beams to Top-hat Beams Z-scan:Analysis of Sensitivity and Reliability |
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| Zuo Ping,Gu Bing,Tan Suqing,Huang Xiaoqin.From Gaussian Beams to Top-hat Beams Z-scan:Analysis of Sensitivity and Reliability[J].Journal of Nanjing Normal University(Natural Science Edition),2009,32(1). |
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| Authors: | Zuo Ping Gu Bing Tan Suqing Huang Xiaoqin |
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| Institution: | Jiangsu Key Laboratory on Opto-Electronic Technology;School of Physics Science and Technology;Nanjing Normal University;Nanjing 210097;China |
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| Abstract: | The normalized transmittance of Z-scan traces,by using the fast Fourier Transform(FFT)method,was analyzed.The influence of the spatial profile beam of input laser on the sensitivity and reliability in Z-scan measurements was discussed in detail.The clip Gaussian beams(i.e.,near top-hat beams)Z-scan technique,which improves the sensitivity,the reliability of measurements,and the efficiency in use of the input laser energy was presented. |
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| Keywords: | Z-scan sensitivity reliability near top-hat beams |
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