Three-dimensional ferroelectric domain visualization by Čerenkov-type second harmonic generation

Yan Sheng, Andreas Best, Hans Jürgen Butt, Wieslaw Krolikowski, Ady Arie, Kaloian Koynov*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We show that focusing a laser light onto the boundary between antiparallel ferroelectric domains leads to the non-collinear generation of two second harmonic (SH) beams. The beams are emitted in a plane normal? to the domain boundaries at the angles that satisfy the Čerenkov-type phase matching condition. Moreover, these beam disappear when the laser light is focused on a homogenous part of a single domain. We utilize this effect for 3-dimensional visualization of fine details of the ferroelectric domain pattern with a submicron accuracy.

Original languageEnglish
Pages (from-to)16539-16545
Number of pages7
JournalOptics Express
Issue number16
StatePublished - 2 Aug 2010


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