Semiconductor-superlattice frequency multiplier for generation of submillimeter waves

F. Klappenberger, K. F. Renk, P. Renk, B. Rieder, Yu I. Koshurinov, D. G. Pavelev, V. Ustinov, A. Zhukov, N. Maleev, A. Vasilyev

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A semiconductor-superlattice frequency multiplier for the generation of submillimeter waves was described. It was shown that a monochromatic microwave-pump field 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. It was observed that a highly doped GaAs/AlAs superlattice allowed the conversion of pump to third-harmonic radiation at 300 GHz with an efficiency of about 1%. It was found that the emission line of the frequency multiplier was tunable within a range of about 1 GHz.

Original languageEnglish
Pages (from-to)3924-3926
Number of pages3
JournalApplied Physics Letters
Issue number19
StatePublished - 10 May 2004
Externally publishedYes


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