Restrictive domain motion in polarization switching of lithium niobate
Resource
Applied Physics Letters 81 (9): 1666-1668
Journal
Applied Physics Letters
Journal Volume
81
Journal Issue
9
Pages
1666-1668
Date Issued
2002
Date
2002
Author(s)
Abstract
We 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.
Other Subjects
Domain 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; Polarization
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
07.pdf
Size
297.47 KB
Format
Adobe PDF
Checksum
(MD5):dc3f0ac11acb74cb4e2ba9f459b24cf8