Axial irradiance distribution throughout the whole space behind an annular aperture
Abbreviated Journal Title
In many photonics and fiber-optics applications, the irradiance distribution in the very near field (z/D < 0.25) behind a circular or annular aperture is of interest. We present the results of detailed calculations of the irradiance distribution throughout the entire space behind an annular aperture. Included as a special case of the annular aperture is the circular aperture and the opaque circular disk. A log-log plot over many orders of magnitude in axial distance provides particular insight. The behavior throughout the Fresnel and Fraunhofer region is well known; however, we pay particular attention to the behavior in the near field. A variety of subtle effects in the near field are presented and discussed. (C) 2002 Optical Society of America.
"Axial irradiance distribution throughout the whole space behind an annular aperture" (2002). Faculty Bibliography 2000s. 3249.