Scheuerer, R. and Haeussler, M. and Renk, Karl F. and Schomburg, E. and Koschurinov, Y. I. and Pavelev, D. G. and Maleev, N. and Ustinov, V. and Zhukov, A. (2003) Frequency multiplication of microwave radiation by propagating space-charge domains in a semiconductor superlattice. APPLIED PHYSICS LETTERS, 82 (17). pp. 2826-2828. ISSN 0003-6951
Full text not available from this repository.Abstract
We report on frequency multiplication of microwave radiation by propagating space-charge domains in a semiconductor superlattice; the domains were due to a negative differential mobility of miniband electrons. We irradiated an arrangement of two GaAs/AlAs superlattices, mounted in a rectangular waveguide system, with microwave radiation (frequency near 70 GHz) and observed the generation of harmonics; the conversion of radiation power to the third harmonic showed a remarkable efficiency (5%). A theoretical study, based on a drift-diffusion model for the miniband electrons, suggests that the microwave radiation has driven the formation and annihilation of space-charge domains and that the resulting anharmonic current was the source of the frequency-multiplied radiation. Our results indicate that frequency multiplication by space-charge domains in a semiconductor superlattice can be exploited for efficient generation of submillimeter-wave radiation. (C) 2003 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BLOCH OSCILLATIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Aug 2021 06:49 |
| Last Modified: | 11 Aug 2021 06:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39111 |
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