Matching Items (11)
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This paper reports the molecular beam epitaxial growth and characterization of high-reflectivity and broad-bandwidth distributed Bragg reflectors (DBRs) made of ZnTe/GaSb quarter-wavelength (lambda/4) layers for optoelectronic applications in the midwave infrared spectral range (2-5 mu m). A series of ZnTe/GaSb DBRs has been successfully grown on GaSb (001) substrates using

This paper reports the molecular beam epitaxial growth and characterization of high-reflectivity and broad-bandwidth distributed Bragg reflectors (DBRs) made of ZnTe/GaSb quarter-wavelength (lambda/4) layers for optoelectronic applications in the midwave infrared spectral range (2-5 mu m). A series of ZnTe/GaSb DBRs has been successfully grown on GaSb (001) substrates using molecular beam epitaxy (MBE). During the MBE growth, a temperature ramp was applied to the initial growth of GaSb layers on ZnTe to protect the ZnTe underneath from damage due to thermal evaporation. Post-growth characterization using high-resolution x-ray diffraction, atomic force microscopy, and transmission electron microscopy reveals smooth surface morphology, low defect density, and coherent interfaces. Reflectance spectroscopy results show that a DBR sample of seven lambda/4 pairs has a peak reflectance as high as 99.0% centered at 2.56 mu m with a bandwidth of 517 nm.

ContributorsFan, Jin (Author) / Liu, Xinyu (Author) / Ouyang, Lu (Author) / Pimpinella, Richard E. (Author) / Dobrowolska, Margaret (Author) / Furdyna, Jacek K. (Author) / Smith, David (Author) / Zhang, Yong-Hang (Author) / Ira A. Fulton Schools of Engineering (Contributor)
Created2013-10-28
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ContributorsLi, Jing-Jing (Author) / Yin, Leijun (Author) / Johnson, Shane R. (Author) / Skromme, B. J. (Author) / Wang, Shumin (Author) / Liu, Xinyu (Author) / Ding, Ding (Author) / Ning, Cun-Zheng (Author) / Furdyna, Jacek K. (Author) / Zhang, Yong-Hang (Author)
Created2012
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ContributorsKim, H. S. (Author) / Cellek, O. O. (Author) / Lin, Zhi-Yuan (Author) / He, Zhao-Yu (Author) / Zhao, Xin-Hao (Author) / Liu, Shi (Author) / Li, Hua (Author) / Zhang, Yong-Hang (Author)
Created2012