Cooper, D. P.Schöll, Eckehard2018-11-102018-11-1019950932-0784https://depositonce.tu-berlin.de/handle/11303/8484http://dx.doi.org/10.14279/depositonce-7630It is demonstrated numerically that by using Pyragas' method of chaos self-control a stable semiconductor oscillator can be designed based on driven real-space transfer oscillations in a modulation-doped heterostructure. By application of a small time-continuous delayed feedback voltage control signal, different unstable periodic orbits embedded in the chaotic attractor can be stabilized. Thus different modes of self-generated periodic voltage oscillations can be selected by choosing an appropriate delay time. This provides tunability to different discrete frequencies.en530 Physiksemiconductor oscillatorvoltage control signalArticle1865-7109