Ultrashort-pulse optically-assisted domain engineering in lithium niobate

C. E. Valdivia, C. L. Sones, S. Mailis, J. D. Mills, R. W. Eason

Research output: Contribution to journalConference articlepeer-review

14 Citations (Scopus)

Abstract

Ultrashort laser pulses ( ∼ 120-150 fs) of near-ultraviolet (305 nm) to near-infrared (800 nm) wavelengths have been used to optically-assist domain nucleation and growth in lithium niobate. Within illuminated areas, the electric field required for domain nucleation is reduced by up to 41% in undoped and up to 98% in 5-mol% Mg-doped congruently melting materials, allowing direct-writing of inverted domains with electric fields as small as 100 V mm-1. A first step towards the formation of optically-defined periodically poled lithium niobate was achieved by illumination via a phase mask, demonstrated over small areas with a period of 5.25 microns.

Original languageEnglish
Pages (from-to)75-82
Number of pages8
JournalFerroelectrics
Volume340
Issue number1 PART 1
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventInternational Symposium on Micro- and Nano-Scale Domain Structuring in Ferroelectrics, ISDS'05 - Ekaterinburg, Russian Federation
Duration: 15 Nov 200519 Nov 2005

Keywords

  • Ferroelectric domain inversion
  • Light-assisted poling
  • Lithium niobate
  • PPLN
  • Ultrashort pulse

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