LUNG-HAN PENGShih, Y.-J.Y.-J.ShihZhang, Y.-C.Y.-C.Zhang2009-03-182018-07-062009-03-182018-07-06200200036951http://ntur.lib.ntu.edu.tw//handle/246246/145996https://www.scopus.com/inward/record.uri?eid=2-s2.0-79956053472&doi=10.1063%2f1.1503169&partnerID=40&md5=fc969aee0b382f7eabc1a6f48ebf4667We investigate the electrostatic control of domain nucleation and motion for periodical polarization (Ps) switching on Z-cut congruent-grown lithium niobate (LiNbO3). A tenfold reduction in the tangential field (Ex) can be resolved as the perturbed, positive charge density intervening otherwise the single-domain crystal exceeds 10-3P s. This concept is realized in a two-step procedure consisting of a high-temperature treatment followed by pulsed field poling. Bulk periodic polarization switching is then realized underneath the oxidized electrode with the lateral 180° domain motion confined to the edge of the charged domain boundary. The forward domain growth can extend through the 500-μm-thick substrate and reach an aspect ratio as large as 150. These observations are attributed to the constraint on domain nucleation and the suppression of E x by the positive charge originating from the divergence of P s at the inverted domain boundary near the subsurface regime. © 2002 American Institute of Physics.application/pdf304606 bytesapplication/pdfen-USDomain boundary; Domain growth; Domain motions; Domain nucleation; Electrostatic control; High-temperature treatment; Lithium niobate; Polarization switching; Positive charge density; Positive charges; Pulsed fields; Single-domain crystals; Two-step procedure; Aspect ratio; Lithium; Niobium compounds; Nucleation; Optical switches; Polarizationjournal article10.1063/1.15031692-s2.0-79956053472http://ntur.lib.ntu.edu.tw/bitstream/246246/145996/1/07.pdf