Far- and Near-Field Second-Harmonic Imaging of Ferroelectric Domain Walls

Sergei I. Bozhevolnyi, Kjeld Pedersen, T. Skettrup, X. Zhang, M. Belmonte

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

Domain walls in periodically poled ferroelectric LiNbO3 crystals are observed with both far- and near-field imaging techniques that make use of second harmonic generation in the transition regions between neighbouring domains. Second harmonic images of domain walls represent bright lines of ∼0.5 μm in width (as measured with a near-field microscope) for the polarization of the second harmonic radiation perpendicular to the domain walls. Origin and selection rules for the contrast in second harmonic images of domain walls are discussed.
OriginalsprogEngelsk
TidsskriftOptics Communications
Vol/bind152
Udgave nummer4-6
Sider (fra-til)221-224
ISSN0030-4018
DOI
StatusUdgivet - 1998
Udgivet eksterntJa

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