"The optical Talbot effect for monochromatic light, shown as a ""Talbot carpet"". At the bottom of the figure the light can be seen diffracting through a grating, and this exact pattern is reproduced at the top of the picture (one Talbot length away from the grating). Halfway down you see the image shifted to the side, and at regular fractions of the Talbot length the sub-images are clearly seen. Optical Talbot Carpet.png"
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