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Terahertz radiation generation in multilayer quantum-cascade heterostructures |
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| Authors: | A V Ikonnikov K V Marem’yanin S V Morozov V I Gavrilenko A Yu Pavlov N V Shchavruk R A Khabibullin R R Reznik G E Cirlin A E Zhukov Zh I Alferov |
| Affiliation: | 1.Institute for Physics of Microstructures of the Russian Academy of Sciences,Nizhny Novgorod,Russia;2.Nizhny Novgorod State University,Nizhny Novgorod,Russia;3.Institute of Ultra High Frequency Semiconductor Electronics of the Russian Academy of Sciences,Moscow,Russia;4.St. Petersburg National Research Academic University of the Russian Academy of Sciences,St. Petersburg,Russia;5.Institute for Analytical Instrumentation,St. Petersburg,Russia;6.St. Petersburg National Research University of Information Technologies, Mechanics, and Optics,St. Petersburg,Russia;7.St. Petersburg Scientific Center of the Russian Academy of Sciences,St. Petersburg,Russia |
| Abstract: | I–V and radiative characteristics of multilayer quantum-cascade GaAs/AlGaAs heterostructures with a double metal waveguide are investigated. The I–V characteristics typical of the quantum-cascade lasers are seen. The observed threshold-intensity growth and narrow radiation spectrum are characteristic of laser generation. The measured radiation frequency was found to be about 3 THz, which coincides with the calculated value. Thus, fully domestic terahertz quantum-cascade lasers are demonstrated for the first time. |
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