Growth of ZnMgTe/ZnTe waveguide structures on ZnTe (0 0 1) substrates by molecular beam epitaxy

Y. Kumagai, S. Imada, Takaaki Baba, Masakazu Kobayashi

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ZnMgTe/ZnTe/ZnMgTe layered structures were grown on (0 0 1) ZnTe substrates by molecular beam epitaxy. This structure was designed to apply to waveguides in various optoelectronic devices to reduce light loss. Since the lattice mismatch between ZnTe and ZnMgTe was not negligible, the critical layer thickness (CLT) was theoretically derived. Structures with varying Mg composition and layer thickness of ZnMgTe cladding layer were grown and examined for crystal quality with respect to theoretical data. The crystal quality was investigated by means of cross sectional transmission electron microscopy (TEM) and reciprocal space mapping (RSM). Optical confinements were observed by irradiating a laser beam from one end of the sample and monitoring the transmitted light from the other end.

Original languageEnglish
Pages (from-to)132-134
Number of pages3
JournalJournal of Crystal Growth
Issue number1
Publication statusPublished - 2011 May 15



  • Devices
  • Molecular beam epitaxy
  • Nanomaterials
  • Transmission electron microscopy
  • X-ray diffraction
  • Zinc tellurites

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Inorganic Chemistry

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