Multiple-plane image formation by Walsh zone plates

PLUTO / PLUTO-2 Spatial Light Modulators
Beam Shaping / Beam Steering Imaging/ Image Processing Microscopy Misc.: Speckle / Characterization / Metrology
Published on:
Authors: Federico Machado, Vicente Ferrando, Fernando Giménez, Walter D. Furlan, and Juan A. Monsoriu
Abstract:

“A radial Walsh filter is a phase binary diffractive optical element characterized by a set of concentric rings that take the phase values 0 or π, corresponding to the values + 1 or −1 of a given radial Walsh function. Therefore, a Walsh filter can be re-interpreted as an aperiodic multifocal zone plate, capable to produce images of multiple planes simultaneously in a single output plane of an image forming system. In this paper, we experimentally demonstrate for the first time the focusing capabilities of these structures. Additionally, we report the first achievement of images of multiple-plane objects in a single image plane with these aperiodic diffractive lenses.”

Open Access

Publication: Optics Express
Issue/Year: Optics Express Volume 26, Issue 16
DOI: 10.1364/OE.26.021210
Link: https://doi.org/10.1364/OE.26.021210

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