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We propose fundamentally new technical and constructive solutions to the construction of the receiving and transmitting structures of the terahertz radiation based on apodized and chirped periodic lattices. It is shown that the efficiency can reach about 88% at the resonance frequency of 1.82 THz and simultaneous apodization and chirping of the structures when the number of periods of such a structure...
The chemical composition of Cu(In,Ga)Se2 (CIGS) semiconductor compounds is analyzed by local x-ray spectral microanalysis and scanning Auger electron spectroscopy. X-ray diffraction analysis reveals a difference in the predominant orientation of CIGS films depending on the technological conditions under which they are grown. The chemical composition is found to have a strong effect on the shift in...
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