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The Dependence of Coating Characteristics on Progress Parameters and Alloy Compositions
Terleeva, Olga. P.,Oh, Young-Joo,Ok, Myoung-Ryul,Utkin, Vladimir V.,Ha, Heon-Phil,Lee, Dong-Heon The Japan Institute of Metals 2005 Materials transactions Vol.46 No.11
<P>The coating characteristics on the surfaces of the aluminum alloys A1230, A2017, Al–7.6 mass%Si, and Al–10.4 mass%Si formed at AC polarization were investigated. The intervals of current densities and process durations were checked, and data consisting of coating thickness and increases in size and weight were obtained. The presence of the high-temperature aluminum oxide phases, which provide high physical-mechanical coating characteristics, was registered with the help of the Bruker D8 Advanced X-ray diffractometer.</P>
A.I. Yakimov,V.V. Kirienko,A.A. Bloshkin,A.V. Dvurechenskii,D.E. Utkin 한국물리학회 2020 Current Applied Physics Vol.20 No.7
The paper is devoted to optical testing of mid-infrared Ge/Si photodetectors obtained by stacking of self-assembled Ge quantum dots in multilayer structures, which are near-field coupled to the adjacent nanoplasmonic arrays of subwavelength holes in metallic films. It is shown that photocurrent and near-field spectra consist of several sets of peaks, which are attributted to surface plasmon waves, localized surface plasmon modes or diffractive Rayleigh anomaly depending on the hole diameter and the angle of incidence θ. We find that for small holes the greatest contribution to the photocurrent enhancement is due to the excitation of the surface plasmonpolariton waves for all θ. As the hole diameter is increased and becomes comparable with the array periodicity, the normal-incident photoresponse improvement is provided by the Rayleigh anomaly. With the increase of incident angle, the photocurrent enhancement is supposed to arise from coupling of the localized shape resonance and propagating plasmon modes.