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Considerations on the design of diffractive optical needles

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Martínez Herrero, Rosario and Maluenda, David and Juvells, Ignasi and Carnicer, Artur (2019) Considerations on the design of diffractive optical needles. In 2018 17TH Workshop on Information Optics (WIO). Workshop on Information Optics . IEEE Computer Society, Quebec, Canada. ISBN 978-1-5386-6013-3

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Official URL: http://dx.doi.org/10.1109/WIO.2018.8643545


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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.


Item Type:Book Section
Additional Information:

©2018 IEEE Computer Society
Workshop on Information Optics (17. 2018. Quebec, Canadá)
ISSN: 2472-159X
R.M.H. and A.C. acknowledges support from Ministerio de Economia y Competitividad (MINECO) grant number FIS2016-75147-C3-1-P.

Uncontrolled Keywords:Longitudinally polarized-light; Depth; Filter; Focus; Lens; Spot; Light needles; High numerical aperture optical systems; Polarization
Subjects:Sciences > Physics > Optics
ID Code:55428
Deposited On:07 Jun 2019 14:31
Last Modified:07 Jun 2019 14:31

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