| 拉盖尔-高斯光束经单缝后的光强分布和螺旋谱 |
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| 引用本文： | 高福海,陈宝算,蒲继雄,朱健强. 拉盖尔-高斯光束经单缝后的光强分布和螺旋谱[J]. 激光与光电子学进展, 2011, 0(9): 40-46 |
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| 作者姓名： | 高福海 陈宝算 蒲继雄 朱健强 |
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| 作者单位： | 中国科学院上海光学精密机械研究所高功率激光物理联合实验室;华侨大学信息科学与工程学院; |
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| 摘 要： | 根据菲涅耳衍射积分,研究了拉盖尔-高斯光束经过单缝衍射后的光强分布,发现拉盖尔-高斯光束经过单缝后衍射条纹会出现空心和发生弯曲,并与实验结果进行了比较.研究了拉盖尔-高斯光束经过单缝后的螺旋谱,发现单缝的存在会使螺旋谱展宽.给出了拉盖尔-高斯光束经过单缝衍射后的相位分布.研究结果可用于涡旋光束拓扑电荷数的测量.
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| 关 键 词： | 衍射 拉盖尔-高斯光束 单缝衍射 光强分布 螺旋谱 |
Intensity Distribution and Spiral Spectra of Laguerre-Gaussian Beam Passing through a Single-Slit |
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| Gao Fuhai Chen Baosuan Pu Jixiong Zhu Jianqiang. Intensity Distribution and Spiral Spectra of Laguerre-Gaussian Beam Passing through a Single-Slit[J]. Laser & Optoelectronics Progress, 2011, 0(9): 40-46 |
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| Authors: | Gao Fuhai Chen Baosuan Pu Jixiong Zhu Jianqiang |
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| Affiliation: | Gao Fuhai Chen Baosuan Pu Jixiong Zhu Jianqiang(1National Laboratory on Hight Power Laser and Physics,Shanghai Institute of Optics and Fine Meduanics,Chinese Academy of Sciences,Shanghai 201800,China2School of Information Science and Engineering,Huaqiao University,Quanzhou,Fujian 362021,China) |
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| Abstract: | Based on the Fresnel diffraction integral,the diffraction pattern of a Laguerre-Gaussian beam passing through a single-slit has been studied.It is found that the diffraction fringes of the Laguerre-Gaussian beam will dislocate and bend which have also been demonstrated by experiments.The spiral spectra of the Laguerre-Gaussian beam passing through the single-slit are also investigated.It is shown that the spiral spectra will broaden with the existence of the single-slit.In addition,the phase distribution of... |
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| Keywords: | diffraction Laguerre-Gaussian beam single-slit diffraction intensity distribution spiral spectra |
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