Growth and optical properties of (KNa) 0.1 (Sr 0.61 Ba 0.39 ) 0.9 Nb2 O6 thin films by pulsed laser deposition

Y. Zhang, K. Tao, Y. Ma, S. Yang, B. Wang, Chee Leung Mak, K.H. . Wong

Research output: Journal article publicationJournal articleAcademic research

Abstract

Epitaxial (KNa)0.1Sr0.61Ba0.39)0.9Nb2O6 (KNSBN:61) thin films deposited on MgO(100) substrates have been prepared by pulsed laser deposition (PLD). The structural properties of the thin films have been examined by X-ray diffraction analysis. An X-ray diffraction 2θ scan indicates single crystalline layers with the (001) orientation perpendicular to the substrate plane. The optical transmission spectra of the thin films have been obtained in the spectral range of 200–900 nm, and their optical constants (refractive index n and extinction coefficient k) have been determined. It has been found that the refractive index of the thin films is similar to that of a KNSBN:61 single bulk crystal. The birefringent shift as a function of the applied voltage of the thin films on fused silica has been measured, and the quadratic electro optic coefficient R has been derived to be 0.4×10-16(m/V)2 at 6328 Å.
Original languageEnglish
Pages (from-to)1063-1066
Number of pages4
JournalJapanese Journal of Applied Physics
Volume46
Issue number3A
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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