0372-400Х (Edition in Ukrainian)
2071-0186 (Edition in English)
2071-0194 (in electronic form)
Abbreviated key title: Ukr. J. Phys.
Current issue Ukr. J. Phys. 2014, Vol. 58, N 2, p.182-188
Tkach M.V., Seti Yu.O.
Yu. Fed’kovich National University of Chernivtsi
(2, Kotsyubyns’kyi Str., Chernivtsi 58012, Ukraine; e-mail: email@example.com)
Theory of the Properties of Resonant-Tunneling Nanostructures as Active Elements of Quantum Cascade Lasers and Detectors
Original Author's Text: Ukrainian
Abstract: A theory describing the spectral parameters of quasistationary states and the dynamic conductivity in an open three-barrier resonant-tunneling system (RTS) as an active element of a quantum cascade laser or a quantum cascade detector has been developed in the framework of the rectangular potential model and the effective electron mass approximation. It is shown that the optimal functioning of a three-barrier RTS can be obtained by properly choosing its geometric configuration, namely, by arranging the inner barrier closer to the input one in a position determined by the electromagnetic field energy.
Key words: resonance-tunnel nanostructure, conductivity.