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Aspherical liquid crystal lenses based on a variable transmission electrode

Abstract: In this work, a technique to generate aspherical liquid crystal lenses with positive and negative optical power is experimentally demonstrated. The main enabling element is a micro-metric electrode with variable spatial size. This produces a decreasing resistance towards the lens centre that generates the desired voltage/phase profiles. Then, the voltage is homogeneously distributed across the active area of the lens by micro-metric concentric electrodes. As it is demonstrated, the phase shift can be controlled with voltages from 0 to 4.5 VRMS. As a result, parabolic profiles are obtained both for negative and positive optical powers. Furthermore, this approach avoids some disadvantages of previous techniques; parabolic profiles can be obtained with only one lithographic step and one or two voltage sources. Other complex aspherical profiles could be fabricated using the same technique, such as elliptical or hyperbolic ones.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Bennis N., Jankowski T., Morawiak P., Spadlo A., Zografopoulos D.C., Sánchez-Pena J.M., López-Higuera J.M., Algorri J.F.,

 Fuente: Optics Express, 2022, 30(8), 12237-12247

Editorial: The Optical Society (OSA)

 Fecha de publicación: 28/03/2022

Nº de páginas: 11

Tipo de publicación: Artículo de Revista

 DOI: 10.1364/OE.451292

ISSN: 1094-4087

 Proyecto español: RTC-2017-6321-1; PDC2021-121172-C21

Url de la publicación: https://doi.org/10.1364/OE.451292

Autoría

BENNIS, N.

JANKOWSKI, T.

MORAWIAK, P.

SPADLO, A.

ZOGRAFOPOULOS, D. C.

JOSE MANUEL SANCHEZ PENA