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Title: Optical properties of epitaxial and polycrystalline Sr[sub 1.8]Ca[sub 0.2]NaNb[sub 5]O[sub 15] thin-film waveguides grown by pulsed laser deposition
Authors: Liu, W. C.
Mak, Chee-leung
Wong, Kin-hung
Wang, Danyang
Chan, Helen L. W.
Subjects: Strontium compounds
Calcium compounds
Sodium compounds
Epitaxial layers
Ferroelectric thin films
Pulsed laser deposition
Optical waveguides
Visible spectra
Issue Date: 2-Aug-2006
Publisher: American Institute of Physics
Source: Journal of applied physics, 2 Aug. 2006, v. 100, no. 3, 033507, p. 1-6.
Abstract: Epitaxial and polycrystalline ferroelectric Sr[sub 1.8]Ca[sub 0.2]NaNb[sub 5]O[sub 15] thin films have been prepared by pulsed laser deposition on (100)MgO and fused quartz substrates, respectively. These films exhibit excellent surface flatness and high optical transmittance of about 80% over the whole visible region. Their good optical waveguide characteristics are demonstrated using prism coupling technique. Our results show that the internal scattering of the film is more influential in governing the propagation loss than the surface scattering, and that a heteroepitaxial growth of ferroelectric oxide films is essential for waveguide devices.
Rights: © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in W.C. Liu et al., J. Appl. Phys. 100, 033507 (2006) and may be found at
Type: Journal/Magazine Article
ISSN: 0021-8979
Appears in Collections:AP Journal/Magazine Articles

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