TITLE

# Semiconductorâ€“superlattice frequency multiplier for generation of submillimeter waves

AUTHOR(S)
Klappenberger, F.; Renk, K.F.; Renk, P.; Rieder, B.; Koshurinov, Yu.I.; Pavelev, D.G.; Ustinov, V.; Zhukov, A.; Maleev, N.; Vasilyev, A.
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/10/2004, Vol. 84 Issue 19, p3924
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
We report on a semiconductor-superlattice frequency multiplier for the generation of submillimeter waves. A monochromatic microwave-pump field (frequency near 100 GHz) periodically excited a superlattice into states of negative differential conductivity giving rise to space-charge domain creation and annihilation joint with a nonsinusoidal high-frequency current and radiation at harmonics of the pump field. A highly doped GaAs/AlAs superlattice allowed the conversion of pump to third-harmonic radiation at 300 GHz with an efficiency of about 1% (powerâˆ¼30 ÂµW).
ACCESSION #
13029115

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