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Image formation by an optical microscope

Now we can consider how a microscope forms an image, and how this image formation can be simulated in a convenient way for use with data [Pg.192]

FIGURE 6.6. Fourier analysis. Take a regularly repeating function and break it down into its component simple cosine waves. Fourier analysis gives, for each component wave, its amplitude, its frequency, and its phase relative to a chosen origin. [Pg.192]

FIGURE 6.7. Fourier synthesis. Take a series of waves of different amplitudes, frequencies, and relative phases. Sum them. Because the waves are periodic, their sum is also periodic. Note the relative phase of each term. [Pg.193]

FIGURE 6.8. Imaging of a structure in the microscope. Diffracted beams are recombined in the image plane by a Fourier synthesis. [Pg.194]


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