Mid-infrared tunable two-dimensional Talbot array illuminator

Year: 2009

Authors: Maddaloni P., Paturzo M., Ferraro P., Malara P., De Natale P., Gioffrè M., Coppola G., Iodice M.

Autors Affiliation: Istituto Nazionale di Ottica Applicata (INOA), Consiglio Nazionale delle Ricerche (CNR), Comprensorio “A. Olivetti” Via Campi Flegrei 34-80078 Pozzuoli (Napoli), Italy;
Istituto per la Microelettronica e Microsistemi (IMM), Consiglio Nazionale delle Ricerche (CNR), Via P. Castellino 111-80131 Napoli, Italy

Abstract: We report the realization and characterization of a tunable, two-dimensional Talbot array illuminator for mid-infrared (MIR) wavelengths. A phase array, prepared by deposing tin-doped indium oxide electrodes on a square-lattice-geometry poled LiNbO(3) sample, is illuminated by a difference-frequency generator emitting at 3 mu m. Then, combining the electro-optic with the Talbot effect allows generation of a variety of light patterns under different values of distance and external electric field. Several potential applications with great relevance to the MIR spectral region are discussed.


Volume: 94 (12)      Pages from: 121105  to: 121105

More Information: The research leading to these results has received funding from the European Community\’s Seventh Framework Programme FP7/2007-2013 under Grant No. 216105 (\”Real 3D\” Project).
KeyWords: Electric fields; Electrodes; Indium compounds; Infrared devices; Tin; Titanium compounds, Difference frequencies; Electro optics; External electric fields; Light patterns; Mid-infrared; Phase arrays; Potential applications; Spectral regions; Square lattices; Talbot array illuminators; Talbot effects; Tin-doped indium oxides, Two dimensional
DOI: 10.1063/1.3109794

Citations: 22
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