Title :
Superlattice frequency multiplier for generation of submillimeter waves
Author :
Schomburg, Ekkehard ; Grenzer, Jörg ; Hofbeck, Klaus ; Dummer, C. ; Winnerl, Stephan F. ; Ignatov, Anatoly A. ; Renk, Karl F. ; Pavel´ev, D.G. ; Koschurinov, Jury I. ; Melzer, Boris ; Ivanov, Sergey ; Ustinov, Victor ; Kop´ev, P.S.
Author_Institution :
Inst. fur Angewandte Phys., Regensburg Univ., Germany
fDate :
9/1/1996 12:00:00 AM
Abstract :
We observed frequency multiplication of 65-GHz radiation up to the fifth harmonic (325 GHz; wavelength 0.9 mm) in a superlattice with negative differential conductance at room temperature. The efficiency of multiplication depended strongly on both the strength of a static field and the strength of the 65-GHz field. An analysis of the results shows that the nonlinear current, responsible for the frequency multiplication, was governed by the Esaki-Tsu current-voltage characteristic that describes the transport of carriers in large-miniband superlattices
Keywords :
III-V semiconductors; aluminium compounds; frequency multipliers; gallium arsenide; harmonic generation; semiconductor superlattices; submillimetre wave devices; 0.9 mm; 325 GHz; 65 GHz; Esaki-Tsu I-V characteristic; GaAs-AlAs; THF frequency multiplication; current-voltage characteristic; fifth harmonic; large-miniband superlattices; negative differential conductance; submillimeter wave generation; superlattice frequency multiplier; Electrons; Frequency conversion; Hafnium; Scattering; Shape; Superlattices; Temperature; Voltage;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.571773
