Transmission of Light Through Small Elliptical Apertures (Part 1)

The apertures of classical optics simply block those parts of an incident wavefront that fall outside the aperture, allowing everything else to go through intact.Moreover,multiple apertures act upon an incident beam independently of each other, polarization effects are usually negligible (i.e., scalar diffraction), and it is not necessary to keep track of both the electric- and the magnetic-field components of the beam.

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