Figure 15
(a) A line-out over a width of 16.5 µm from the image in Fig. 10 (a) is taken in the Talbot grating self-image area, and out of it. (b) A Fourier transform of both line-outs is presented. (c) The real part of the inverse Fourier transform of the low-frequency component at 3.13 µm−1 is presented in blue. The red curve is the residual between the low-frequency component and the measured line-out at the Talbot self-image. |