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Type: 
Journal
Description: 
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 LiNbO3 sample, is illuminated by a difference-frequency generator emitting at 3 μm. 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.
Publisher: 
American Institute of Physics
Publication date: 
23 Mar 2009
Authors: 

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

Biblio References: 
Volume: 94 Issue: 12 Pages: 121105
Origin: 
Applied Physics Letters