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Proceedings Paper

All-optical phase shifter with photovoltaic liquid crystal cell
Author(s): L. Lucchetti; K. Kushnir; F. Ciciulla; A. Zaltron; G. Bettella; G. Pozza; C. Sada; V. Reshetnyak; F. Simoni
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Paper Abstract

Liquid crystal cells with LiNbO3:Fe crystals as substrates, are described. The photovoltaic field generated by the substrates is able to reorient the liquid crystal director thus giving rise to a phase shift on the light propagating through the cell, as in liquid crystal light valves. The process does not require the application of an external electric field, thus being potentially useful for applications requiring a high degree of compactness. A detailed characterization of several cells based on lithium niobate crystals with different iron concentration has been carried out. The correlation between the LiNbO3:Fe characteristics and the liquid crystal reorientation is also discussed.

Paper Details

Date Published: 23 September 2016
PDF: 7 pages
Proc. SPIE 9940, Liquid Crystals XX, 99400G (23 September 2016); doi: 10.1117/12.2235580
Show Author Affiliations
L. Lucchetti, Univ. Politecnica delle Marche (Italy)
K. Kushnir, National Taras Shevchenko Univ. of Kyiv (Ukraine)
F. Ciciulla, Univ. Politecnica delle Marche (Italy)
A. Zaltron, Univ. degli Studi di Padova (Italy)
G. Bettella, Univ. degli Studi di Padova (Italy)
G. Pozza, Univ. degli Studi di Padova (Italy)
C. Sada, Univ. degli Studi di Padova (Italy)
V. Reshetnyak, National Taras Shevchenko Univ. of Kyiv (Ukraine)
F. Simoni, Univ. Politecnica delle Marche (Italy)

Published in SPIE Proceedings Vol. 9940:
Liquid Crystals XX
Iam Choon Khoo, Editor(s)

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