Terahertz Photovoltaic Detection of Cyclotron Resonance in the Regime of Radiation-Induced Magnetoresistance Oscillations

摘要

We examine and compare the diagonal magnetoresistance, Rxx , and the photovoltage induced by microwave (42 = or < f < GHz) and terahertz (f-300 GHz) photoexcitation in the high mobility quasi-two-dimensional GaAs/AlGaAs system. The data demonstrate strong radiation-induced magnetoresistence oscillations in Rxx to 360 GHz. In addition, cyclotron resonance is observed in the photovoltage to 725 GHz. These results show that our high-mibility GaAs/AlGaAs two-dimensional election system (2DES) specimens remains photoactive in magnetotransport into the terahertz band.