88th Optical Society of America Annual Meeting Proceedings: Rochester, NY, October 1, 2005.
NOTE: At the time of publication, the author Glen Gillen was not yet affiliated with Cal Poly.
For a plane wave (having wavelength λ) incident on a circular aperture (radius a), the transverse distribution of light intensity beyond the aperture is expressed in terms of a dimensionless parameter, p1=a/λ, for various distances close to the aperture, using the vector Rayleigh-Sommerfeld diffraction theory.
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