All-optical three-dimensional mapping of 180 degrees domains hidden in a BaTiO(3) crystal.
We present three-dimensional, high-contrast maps of 180 degrees domains hidden inside photorefractive crystals of BaTiO(3). Some domains are columns that run the entire length of the crystal, whereas others are short needles that begin predominantly on the -c surface but disappear inside the crystal bulk.
Grubsky
V
V
Maccormack
S
S
Feinberg
J
J