Interferometric analysis of a lithium niobate with engineering reversed domains

Marella de Angelis; Sergio De Nicola; Pietro Ferraro; Andrea Finizio; Simonetta Grilli; Giovanni Pierattini

doi:10.1117/12.501840

30 May 2003 Interferometric analysis of a lithium niobate with engineering reversed domains

Marella de Angelis, Sergio De Nicola, Pietro Ferraro, Andrea Finizio, Simonetta Grilli, Giovanni Pierattini

Proceedings Volume 5144, Optical Measurement Systems for Industrial Inspection III; (2003) https://doi.org/10.1117/12.501840
Event: Optical Metrology, 2003, Munich, Germany

Abstract

We report an interferometric analysis of 0.5mm thick lithium niobate crystal sample by making use of a reflective grating interferometer and a digital holographic technique. The lithium niobate wafer was subjected to electric field poling in order to obtain two antiparallel ferroelectric domains. The crystal was then mounted into one arm of the interferometer in order to study the phase map and consequently to evaluate the effects of domain reversion at the boundary. Engineering of periodically reversed domains in LN is extensively used for quasi-phase-matching applications while the ferroelectric structure investigated here is suitable for producing electro-optically controlled deflector or switch devices via total internal reflection at the domain interface. The above mentioned applications require deep knowledge of how the domain reversal process affects the optical properties of the ferroelectric crystals.

Citation Download Citation

Marella de Angelis, Sergio De Nicola, Pietro Ferraro, Andrea Finizio, Simonetta Grilli, and Giovanni Pierattini "Interferometric analysis of a lithium niobate with engineering reversed domains", Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); https://doi.org/10.1117/12.501840

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