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Novel free-form optical pairs for tunable focalizers

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Abstract

We unveil the use of a pair of free-form refractive elements for optically implementing tunable phase delays, over several annularly distributed regions, which are here represented by a binary function. We show that there is a closely related technique, which is useful for controlling amplitude attenuations over selected annularly distributed regions. We combine our two proposals for describing a tunable radial Schlieren technique, as well as a controllable phase contrast technique.

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Authors and Affiliations

  1. Engineering Division, Electronics Department, University of Guanajuato, Campus Salamanca, Campus Salamanca, Guanajuato, Mexico

    Jorge Ojeda-Castañeda & Sergio Ledesma

  2. Digital Arts Department, University of Guanajuato, Campus Salamanca, Guanajuato, Mexico

    Cristina M. Gómez-Sarabia

Authors
  1. Jorge Ojeda-Castañeda
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  2. Cristina M. Gómez-Sarabia
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  3. Sergio Ledesma
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Correspondence to Jorge Ojeda-Castañeda.

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Ojeda-Castañeda, J., Gómez-Sarabia, C.M. & Ledesma, S. Novel free-form optical pairs for tunable focalizers. J Opt 43, 85–91 (2014). https://doi.org/10.1007/s12596-014-0194-9

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  • DOI: https://doi.org/10.1007/s12596-014-0194-9

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