TY - JOUR AU - Rasulova, G. K. AU - Pentin, I. V. AU - Goltsman, G. N. PY - 2019 DA - 2019// TI - Terahertz emission from a weakly-coupled GaAs/AlGaAs superlattice biased into three different modes of current self-oscillations T2 - AIP Advances JO - AIP Advances SP - 105220 VL - 9 IS - 10 KW - GaAs/AlGaAs superlattice KW - SL KW - NbN HEB AB - Radio-frequency modulated terahertz (THz) emission power from weakly-coupled GaAs/AlGaAs superlattice (SL) has been increased by parallel connection of several SL mesas. Each SL mesa is a self-oscillator with its own oscillation frequency and mode. In coupled non-identical SL mesas biased at different voltages within the hysteresis loop the chaotic, quasiperiodic and frequency-locked modes of self-oscillations of current arise. THz emission was detected when three connected in parallel SL mesas were biased into the frequency-locked and quasiperiodic modes of self-oscillations of current, while in the chaotic mode of those it falls to the noise level. SN - 2158-3226 UR - http://aip.scitation.org/doi/10.1063/1.5116014 UR - https://doi.org/10.1063/1.5116014 DO - 10.1063/1.5116014 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1274), last updated on Fri, 07 May 2021 16:44:15 -0500 ID - Rasulova_etal2019 ER -