The contributions of homogeneous and evanescent waves to two-dimensional near-field diffraction patterns of scalar optical fields are examined in detail. The total plane-integrated intensities of the two contributions are introduced as convenient measures of their relative importance. As an example, the diffraction of a plane wave by a slit is considered.
© 1995 Optical Society of America
Original Manuscript: July 14, 1994
Revised Manuscript: January 3, 1995
Published: June 10, 1995
Marek W. Kowarz, "Homogeneous and evanescent contributions in scalar near-field diffraction," Appl. Opt. 34, 3055-3063 (1995)