| 基于Matlab的激光光斑模拟 |
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| 引用本文： | 景磊,赵振兴,宋东瑶,郑继明.基于Matlab的激光光斑模拟[J].西北大学学报,2009,7(4):5-12. |
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| 作者姓名： | 景磊 赵振兴 宋东瑶 郑继明 |
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| 作者单位： | 西北大学光予学与光子技术研究所,陕西西安710069 |
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| 摘 要： | 采用基于Matlab的小容量FFT（比如256×256）程序，将取样窗口划分为若干个全等的小矩形，对每个小矩形内离散点的复振幅作FFT变换，然后将所有变换结果叠加，再乘以复数相位因子，相当于对整个物面上点进行菲涅耳衍射计算，利用这种方法可以迅速的实现高精度的轴对称傍轴光学系统中的激光衍射计算。
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| 关 键 词： | FFT 衍射计算 Matlab |
Diffraction calculation of laser spot with the arbitrary precision by matlab based programs |
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| JING Lei,ZHAO Zhen-xing,SONG Dong-fan,ZHENG Ji-ming.Diffraction calculation of laser spot with the arbitrary precision by matlab based programs[J].Journal of Northwest University(Natural Science Edition),2009,7(4):5-12. |
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| Authors: | JING Lei ZHAO Zhen-xing SONG Dong-fan ZHENG Ji-ming |
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| Institution: | (Institute of Photonics ＆ Photo-technology, Northwest University, Xi＇an 710069, China) |
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| Abstract: | Sampling window was divided into some small rectangles. Make FFT transform on every small rectangle, and then add all the results. The programs are based on Matlab. Using this method, the distribution of laser was got at anywhere and with all precisions. |
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| Keywords: | FFT Calculation of Fresnel diffraction Matlab |
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