| 一种提取物体相位变化率信息的理论和方法 |
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| 引用本文： | 陈冠英. 一种提取物体相位变化率信息的理论和方法[J]. 光学学报, 2000, 20(10): 347-1352 |
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| 作者姓名： | 陈冠英 |
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| 作者单位： | 西北师范大学物理系,兰州,730070 |
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| 摘 要： | 利用部分相干光成像理论,推出傅科(Foucault)刀口相位检测时非相干光入射情况下的像面光强分布.分析表明,在一定条件下,可得到输入物函数相位变化率分布的信息.同时提出一种获取物相位变化率信息的装置,并分析了该装置的成像情况.
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| 关 键 词： | 刀口法 相位检测 光强分布 相位变化率 光栅 |
| 收稿时间： | 1999-03-15 |
A Theory and Method to Obtain Information of Phase Change Rate of Object |
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| Chen Guanying. A Theory and Method to Obtain Information of Phase Change Rate of Object[J]. Acta Optica Sinica, 2000, 20(10): 347-1352 |
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| Authors: | Chen Guanying |
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| Abstract: | According to the imaging theory of partially coherent light,the intensity distribution atthe outputplane of the Foucaultknife- edge phase testis obtained.The results indicate that the information about phase change of the input object function can be obtained under given conditions,when it is illuminated by an incoherent quasi- monochromatic source. A method for observing the phase information of objects is given and the imaging cases are analyzed. |
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| Keywords: | knife- edge method phase test intensity distribution phase change rate. |
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