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Abstract: A novel liquid crystal microlens array with tunable multifocal capability, high optical power and fill-factor is proposed and experimentally demonstrated. A specific hole pattern design produces a multifocal array with only one voltage control. Three operations modes are possible, "Off", "Tunable Multifocal" and "Unifocal". The design is patterned in both substrates. Then, the substrates are arranged in symmetrical configuration. The result is a high optical power in comparison with typical hole patterned structures. Besides, it is proposed a hexagonal pattern that produces a high fill factor, specially indicated for some applications as Integral Imaging. The array has several useful characteristics for this type of application: tunability for the loss of resolution; multifocal for extended DOF; high fill factor for increase the number of views; and low power consumption for integration in portable devices. Moreover, the optical characteristics of the proposed device could bring new applications in other fields.
Fuente: Scientific reports, 2017, 7, 17318
Publisher: Nature Publishing Group
Publication date: 11/12/2017
No. of pages: 6
Publication type: Article
DOI: 10.1038/s41598-017-17688-1
ISSN: 2045-2322
Spanish project: TEC2013-47342-C2- 2-R
Publication Url: https://doi.org/10.1038/s41598-017-17688-1
Consult in UCrea Read publication
JOSÉ FRANCISCO ALGORRI GENARO
BENNIS, NOUREDDINE
URRUCHI DEL POZO, VIRGINIA
MORAWIAK, PRZEMEK
JOSE MANUEL SANCHEZ PENA
JAROSZEWICZ, LESZEK R.
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