ZnMgSe/ZnCdSe-based distributed bragg mirrors grown by molecular-beam epitaxy on ZnSe substrates |
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| Authors: | V. I. Kozlovskii P. A. Trubenko Yu. V. Korostelin V. V. Roddatis |
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| Affiliation: | (1) Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia;(2) Fiber Optics Research Center, Institute of General Physics, Russian Academy of Sciences, Moscow, 117756, Russia;(3) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia |
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| Abstract: | Molecular-beam epitaxy was used to grow distributed Bragg mirrors on ZnSe substrates. These mirrors are composed of 10.5 and 20 pairs of alternating quarter-wave ZnMgSe and ZnCdSe layers with reflectance peaks at the wavelengths of 530 and 560 nm, respectively, which fall in the transparency region of the substrate. These structures were studied by low-temperature cathodoluminescence, atomic-force microscopy, and transmission electron microscopy. The maximum of the reflection coefficient was 78% for a 20-pair mirror and 66% for a 10.5-pair mirror. This result is interpreted in terms of a model that takes into account the roughness of the interlayer boundaries. |
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