一种提取物体相位变化率信息的理论和方法

A Theory and Method to Obtain Information of Phase Change Rate of Object

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体相位变化率信息的装置 ,并分析了该装置的成像情况。

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.