title: Three-dimensional ferroelectric domain visualization by Cerenkov-type second harmonic generation.
abstract: 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 Cerenkov-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.
authors: Max-Planck Institute for Polymer Research, Mainz 55128, Germany.
authors: Yan
authors: Y
authors: Sheng
authors: Andreas
authors: A
authors: Best
authors: Hans-Jürgen
authors: HJ
authors: Butt
authors: Wieslaw
authors: W
authors: Krolikowski
authors: Ady
authors: A
authors: Arie
authors: Kaloian
authors: K
authors: Koynov
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation