Abstract:
According to intensity consideration along the propagation axis, we derived mathematical conditions for a family of modulating functions able to produce needles of arbitr...Show MoreMetadata
Abstract:
According to intensity consideration along the propagation axis, we derived mathematical conditions for a family of modulating functions able to produce needles of arbitrary length, sub-wavelength width and almost constant irradiance. These functions are derived by introducing mathematical constrains on the on-axis power content. As a result, the modulating distribution is continuous with no jumps within or at the edge of the pupil. Numerical results suggests that the proposed approach is suitable for producing high quality needles.
Published in: 2018 17th Workshop on Information Optics (WIO)
Date of Conference: 16-19 July 2018
Date Added to IEEE Xplore: 17 February 2019
ISBN Information: