A rectangular aperture of dimensions 0.100 mm along the x-axis and 0.200 mm along the y-ax...

A rectangular aperture of dimensions 0.100 mm along the x-axis and 0.200 mm along the y-axis is illuminated by coherent light of wavelength 546 nm. A 1-m focal length lens intercepts the light diffracted by the aperture and projects the diffraction pattern on a screen in its focal plane. See Figure 11-21.

a. What is the distribution of irradiance on the screen near the pattern center as a function of x and y (in mm) and I0, the irradiance at the pattern center?

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b. How far from the pattern center are the first minima along the x and y directions?

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c. What fraction of the I0 irradiance occurs at 1 mm from the pattern center along the x- and y-directions?

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d. What is the irradiance at the point (x = 2, y = 3) mm?

Figure 1.