Abstract
We find classical analogs of quantum systems capable of stimulated emission of radiation in the absence of inversion. We show that cyclotron parametric instability in low-frequency modulation of the distribution function of resonant particles can amplify a bichromatic high-frequency field when amplification of each spectral component separately is impossible. We point to similar modes for a Cherenkov resonance and a model system with lumped parameters. Finally, we suggest using this effect for converting microwave radiation to a higher frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 640-649 |
| Number of pages | 10 |
| Journal | Journal of Experimental and Theoretical Physics |
| Volume | 85 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 1997 |
| Externally published | Yes |