The angle-impact Wigner function for highly convergent three-dimensional scalar wave fields is derived directly by use of the three-dimensional generalized optical transfer function rather than from a six-dimensional Wigner function. The angle-impact Wigner function is a real four-dimensional function from which the intensity at any point in space is readily determined.
© 2001 Optical Society of America
Colin J. R. Sheppard and Kieran G. Larkin, "Wigner function for highly convergent three-dimensional wave fields," Opt. Lett. 26, 968-970 (2001)