5 papers
Generation of high-frequency radiation in semiconductor superlattices with suppressed space-charge instabilities
Kirill N. Alekseev, Natalia V. Demarina, Maxim V. Gorkunov
We theoretically investigated the scheme allowing to avoid destructive space-charge instabilities and to obtain a strong gain at microwave and THz frequencies in semiconductor supe…
Chaos and rectification of electromagnetic wave in a lateral semiconductor superlattice
Kirill N. Alekseev, Pekka Pietilainen, Alexander A. Zharov +1
We find the conditions for a rectification of electromagnetic wave in a lateral semiconductor superlattice with a high mobility of electrons. The rectification is assisted by a tra…
Fractional and unquantized dc voltage generation in THz-driven semiconductor superlattices
Kirill N. Alekseev, Ethan H. Cannon, Feodor V. Kusmartsev +1
We consider the spontaneous creation of a dc voltage across a strongly coupled semiconductor superlattice subjected to THz radiation. We show that the dc voltage may be approximate…
Direct current generation due to harmonic mixing: From bulk semiconductors to semiconductor superlattices
Kirill N. Alekseev, Feodor V. Kusmartsev
We discuss an effect of dc current and dc voltage (stopping bias) generation in a semiconductor superlattice subjected by an ac electric field and its phase-shifted n-th harmonic.…
1/N-expansion and nonclassical state generation in higher-order anharmonic oscillators
Kirill N. Alekseev, Natasha V. Alekseeva, Jan Perina
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