Measurement of transverse electro-optic coefficient of Sr0.6Ba0.4Nb2O6thin film grown on MgO substrate with different content of potassium ions

Zhiru Shen, Hui Ye, Chee Leung Mak, K. H. Wong, Weidong Shen, Bing Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

12 Citations (Scopus)

Abstract

Preferred c-axis oriented Sr0.6Ba0.4Nb2O6(SBN60) thin films doped with different content of potassium ion have been fabricated by the sol-gel process on MgO(001) substrates. The micro-structure and surface morphology of the films were studied by X-ray diffractometer and atomic force microscopy. It is found that the crystalline properties and the refractive index of the SBN60 films are closely related to the potassium ion concentration in the films. The measured transverse electro-optic coefficient r51of the SBN60 thin films with K+/ Nb5+molar ratios of 0, 1 / 7, 1 / 5, 1 / 3 and 2 / 3 are 36.85, 41.72, 43.11, 62.40 and 77.75 pm/V at 633 nm, respectively. An enhancement of r51with K+content in the SBN60 films has been clearly demonstrated.
Original languageEnglish
Pages (from-to)40-44
Number of pages5
JournalThin Solid Films
Volume488
Issue number1-2
DOIs
Publication statusPublished - 22 Sep 2005

Keywords

  • Electro-optic coefficient
  • MgO(100)
  • Molar ratio
  • Potassium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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