Optical properties of Bi2.25La0.75TiNbO9 thin films grown on fused silica substrates by PLD

Mingfu Zhang, Bin Yang, Hengzhi Chen, Wenwu Cao

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Layered-perovskite ferroelectric Bi2.25La0.75TiNbO9 (LBTN-0.75) optical waveguiding thin films have been prepared on fused silica substrates by pulsed laser deposition (PLD). X-ray θ-2θ scans revealed that the films are single-phase perovskite. The optical properties, such as the wavelength dependence of the transmittance and the refractive index, were determined. The average transmittance of the film is 75% in the wavelength range of 200-1100 nm and the band gap Eg = 3.46 eV. The optical waveguiding properties of the films were characterized by using prism coupling method. The distinct m-lines of the guided transverse electric (TE) and transverse magnetic (TM) modes of the LBTN-0.75 films waveguide have been observed. The film homogeneity and the film-substrate interface were analyzed using the inverse Wentzel-Kramer-Brillouin (iWKB) method.

Original languageEnglish (US)
Pages (from-to)406-409
Number of pages4
JournalOptical Materials
Volume32
Issue number2
DOIs
StatePublished - Dec 1 2009

Fingerprint

Fused silica
Pulsed laser deposition
pulsed laser deposition
Optical properties
silicon dioxide
optical properties
Thin films
Substrates
thin films
Perovskite
transmittance
Optical films
Wavelength
Wentzel-Kramer-Brillouin method
Prisms
wavelengths
prisms
Ferroelectric materials
homogeneity
Refractive index

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Computer Science(all)

Cite this

Zhang, Mingfu ; Yang, Bin ; Chen, Hengzhi ; Cao, Wenwu. / Optical properties of Bi2.25La0.75TiNbO9 thin films grown on fused silica substrates by PLD. In: Optical Materials. 2009 ; Vol. 32, No. 2. pp. 406-409.
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Optical properties of Bi2.25La0.75TiNbO9 thin films grown on fused silica substrates by PLD. / Zhang, Mingfu; Yang, Bin; Chen, Hengzhi; Cao, Wenwu.

In: Optical Materials, Vol. 32, No. 2, 01.12.2009, p. 406-409.

Research output: Contribution to journalArticle

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