Two-dimensional mapping of electro-optic phase retardation in lithium niobate crystals by digital holography

Year: 2005

Authors: de Angelis M., De Nicola S., Finizio A., Pierattini G., Ferraro P., Grilli S., Paturzo M., Sansone L., Alfieri D., De Natale P.

Autors Affiliation: Istituto di Cibernetica del Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy;
Istituto Nazionale di Ottica Applicata, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy

Abstract: We demonstrate accurate two-dimensional mapping of the phase retardation induced by the electro-optic effect in lithium niobate crystals. Off-axis digital holography is used to investigate congruent z-cut crystals. The spatially resolved optical path difference is interferometrically measured while a linearly rising voltage ramp is applied to the crystal. This procedure provides information on the uniformity of crystals

Journal/Review: OPTICS LETTERS

Volume: 30 (13)      Pages from: 1671  to: 1673

KeyWords: Digital holography; Ferroelectric crystals; Phase retardation; Photonic devices, Cameras; Charge coupled devices; Crystal structure; Crystals; Ferroelectricity; Holography; Lithium niobate; Mapping; Optical properties; Two dimensional, Electrooptical effects
DOI: 10.1364/OL.30.001671

Citations: 23
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