Process in ferroelectric domain engineering at the micro/nanoscale

Robert W. Eason, Sakellaris Mailis, Collin L. Sones, Alexander J. Boyland, Alistair C. Muir, Tleyane J. Sono, Jeffrey G. Scott, Christopher E. Valdivia, Iain T. Wellington

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Ferroelectric materials such as lithium niobate (LN) or lithium tantalate (LT) are examples of an extremely versatile class of optical crystals. In bulk single crystal, single domain format, these crystalline hosts find numerous applications in nonlinear optics, optical storage, photorefraction, surface acoustic wave devices, optical waveguides, piezoelectric and pyroelectric devices and electro-optic modulation. Single domain crystals can be subsequently engineered via spatially selective poling to yield domain structures whose size can lie in the region of a few tens of urn to sub-μm, for applications and device fabrication that are impossible to implement in single domain geometry. This paper discusses our progress to date in micro- and nanostructuring of such materials, for applications in nonlinear optics, switching and deflection, and 3-dimensional sculpting for possible MEMS use. The techniques and benefits are discussed of using both light-assisted and direct optical poling for achieving controllable domains that can be irregular or periodic, bulk or surface, at sizes that approach the 100 nm scale. For surface inversion, domain features can be produced that lack the otherwise characteristic crystal symmetry imposed hexagonal shapes observed in conventional electric field poling.

Original languageEnglish
Title of host publicationElectroceramic Materials and Applications - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology
Pages93-108
Number of pages16
Publication statusPublished - 2006
Externally publishedYes
Event6th Pacific Rim Conference on Ceramic and Glass Technology - Maui, Hawaii, United States
Duration: 11 Sep 200516 Sep 2005

Publication series

NameCeramic Transactions
Volume196
ISSN (Print)1042-1122

Conference

Conference6th Pacific Rim Conference on Ceramic and Glass Technology
Country/TerritoryUnited States
CityMaui, Hawaii
Period11/09/0516/09/05

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