| 失调分数傅里叶变换及其光学作用 |
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| 引用本文： | 赵道木,王绍民. 失调分数傅里叶变换及其光学作用[J]. 物理学报, 2001, 50(10): 1935-1938 |
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| 作者姓名： | 赵道木 王绍民 |
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| 作者单位： | 浙江大学物理系,杭州310028 |
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| 基金项目： | 国家自然科学基金(批准号:19974038)及浙江省自然科学基金(批准号:198045)资助的课题. |
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| 摘 要： | 利用失调光学系统的衍射积分公式,分析了失调的Lohmann分数傅里叶变换光学系统和准非对称非均匀介质的衍射特性,得到了两者具有相同的失调衍射积分表达式,表明两者具有等效性,从中提出了失调分数傅里叶变换新概念.关键词：分数傅里叶变换失调光学系统衍射积分梯度折射率介质
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| 关 键 词： | 分数傅里叶变换 失调光学系统 衍射积分 梯度折射率介质 |
| 收稿时间： | 2001-05-09 |
| 修稿时间： | 2001-05-09 |
MISALIGNED FRACTIONAL FOURIER TRANSFORMS AND THEIR OPTICAL IMPLEMENTATION |
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| ZHAO DAO-MU and WANG SHAO-MIN. MISALIGNED FRACTIONAL FOURIER TRANSFORMS AND THEIR OPTICAL IMPLEMENTATION[J]. Acta Physica Sinica, 2001, 50(10): 1935-1938 |
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| Authors: | ZHAO DAO-MU and WANG SHAO-MIN |
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| Abstract: | Based on the misaligned diffraction integral formula for misaligned optical systems, the diffraction for misaligned Lohmann's fractional Fourier transformation system and quasi-asymmetrically inhomogeneous medium are analysed, respectively. It is found that there exist similar expressions of misaligned diffraction integral formula and they are essentially equivalent. And also, a new concept of misaligned fractional Fourier transform is put forward. |
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| Keywords: | fractional Fourier transforms misaligned optical systems diffraction integral graded index media |
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