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We present an adaptive and dynamic hexagonal electro-optic phase array. The proposed device consists of a 2-dimensional hexagonal array of periodically inverted ferroelectric domains, along the z-axis, in lithium niobate crystals. The phase step is achieved via the application of an external electric field, along the z-axis, through transparent electrodes. Thanks to the electro-optic effect the phase step can changed with continuity over all the 0 to 2π by applying a variable voltage. In this way different patterns can be generated. In fact, one important property of this new proposed configuration of array iluminator is the intrinsic flexibility.
Taylor & Francis Group
Publication date: 
10 Jul 2007

M Paturzo, P Ferraro S De Nicola, P De Natale, S Mailis, RW Eason, G Coppola, M Iodice, M Gioffré

Biblio References: 
Volume: 352 Issue: 1 Pages: 94-99