Subterahertz superlattice parametric oscillator.
We report a superlattice parametric oscillator (SPO), with a GaAs/AlAs superlattice as the active element. The SPO was pumped by a microwave field (power 4 mW) and produced third harmonic radiation at subterahertz frequencies (near 300 GHz; 0.1 mW). We attribute the parametric gain to the nonlinearity of the miniband transport.
Renk
K F
KF
Institut für Angewandte Physik, Universität Regensburg, 93040 Regensburg, Germany. karl.renk@physik.uni-regensberg.de
Stahl
B I
BI
Rogl
A
A
Janzen
T
T
Pavel'ev
D G
DG
Koshurinov
Yu I
YI
Ustinov
V
V
Zhukov
A
A