Abstract

The intensity distribution on the optical axis of a parabolic binary diffraction lens is theoretically and experimentally studied. The binary diffraction lens is shown to form an array of focal spots of near-equal intensity on the optical axis. In each local focus, the focal-spot size decreases as the square of the focus number until the paraxiality condition is broken. Theory and experiment are shown to be in good agreement.

© 2015 Optical Society of America

Multifocal binary diffraction lens with arbitrary focal lengths and number of foci

Maryam Mohagheghian and Saeed Ghavami Sabouri
Appl. Opt. 58(27) 7531-7537 (2019)

Multifocal diffractive lens generating several fixed foci at different design wavelengths

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Three-dimensional array diffraction-limited foci from Greek ladders to generalized Fibonacci sequences

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Chromatic dispersion of a high-efficiency resonance domain diffractive lens

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