Two-dimensional mapping of electro-optic phase retardation in lithium niobate crystals by digital holography
2005 (English)In: Optics letters, ISSN 0146-9592, Vol. 30, no 13, 1671-1673 p.Article in journal (Refereed) Published
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' electro-optic properties and offers the ability to detect the presence of defects that is of fundamental importance for reliable processing of photonic devices.
Place, publisher, year, edition, pages
2005. Vol. 30, no 13, 1671-1673 p.
Interferometric Method; Ferroelectric Domains; Internal Field; Reconstruction; Visualization; Linbo3
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-5817OAI: oai:DiVA.org:kth-5817DiVA: diva2:10325
QC 201008242006-05-302006-05-302010-08-24Bibliographically approved