Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2491
Title: Epitaxial Sr₁.₈Ca₀.₂NaNb₅O₁₅ thin film waveguides grown by pulsed laser deposition : optical properties and microstructure
Authors: Liu, W. C.
Yao, Yingbang
Lam, C. Y.
Ng, C. S.
Mak, Chee-leung
Wong, Kin-hung
Zhou, W.
Sooryakumar, R.
Subjects: Atomic force microscopy
Calcium compounds
Electro-optical effects
Epitaxial layers
Ferroelectric thin films
Optical waveguides
Pulsed laser deposition
Refractive index
Scanning electron microscopy
Sodium compounds
Strontium compounds
Surface morphology
X-ray diffraction
Issue Date: 1-Oct-2009
Publisher: American Institute of Physics
Source: Journal of applied physics, 1 Oct. 2009, v. 106, no. 7, 073523, p. 1-5.
Abstract: Epitaxial Sr₁.₈Ca₀.₂NaNb₅O₁₅ (SCNN) thin films slab waveguide structures that support several low-loss transverse electric (TE) and transverse magnetic (TM) modes were grown on MgO(100) substrates by pulsed laser deposition. To optimize the waveguiding properties, the relationship between film microstructure and deposition temperature was investigated by x-ray diffraction, atomic force microscopy, and scanning electron microscopy. The prism coupler technique provides for the refractive indices and structural anisotropy of the core SCNN films deposited at various temperatures. Characterization based on this technique is proposed as a mean to relate the surface morphology to optical features such as the full width at half maximum of the excited guide mode.
Rights: © 2009 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. 106, 073523 (2009) and may be found at http://link.aip.org/link/?jap/106/073523
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/2491
DOI: 10.1063/1.3239991
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:MRC Journal/Magazine Articles
AP Journal/Magazine Articles

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