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Diffractive m-bonacci lenses
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DOI：10.1364/OE.25.008267.png)
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Abstract
En 中文
Fibonacci zone plates are proving to be promising candidates in image forming devices. In this letter we show that the set of Fibonacci zone plates are a particular member of a new family of diffractive lenses which can be designed on the basis of a given m-bonacci sequence. These lenses produce twin axial foci whose separation depends on the m-golden mean. Therefore, with this generalization, bifocal systems can be freely designed under the requirement at particular focal planes. Experimental results support our proposal. (C) 2017 Optical Society of America
Keywords:
FRACTAL ZONE PLATES
FIBONACCI GRATINGS
OPTICAL TWEEZERS
MASKS
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