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Forums > Back > What is this optical phenomenon? Donut-shaped focus/blur?
BasilG
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#18
02-28-2015, 08:13 AM
1) Phase matters. Without phase information, you don't have an image (well, an image of your object in real space representation - you can have a diffraction pattern).

 

2) Why do we observe contrast inversion, in your opinion?
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What is this optical phenomenon? Donut-shaped focus/blur? - by BasilG - 02-28-2015, 08:13 AM

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