Mikhailov, S. A. and Savostianova, N. A. (1997) Terahertz wave amplification, stimulated by dc electric current, in grating coupled low-dimensional electron systems. APPLIED PHYSICS LETTERS, 71 (10). pp. 1308-1310. ISSN 0003-6951, 1077-3118
Full text not available from this repository.Abstract
We present an analytic theory of the transmission of electromagnetic waves through a structure ''two-dimensional electron system with a flowing current -grating coupler.'' The transmission coefficient T(omega,nu(dr)) is calculated as a function of frequency, drift velocity nu(dr),, and other physical and geometrical parameters of the structure. Threshold conditions for amplification [ T(omega nu(dr)) > 1] are analyzed. A number of ideas for a reduction of the threshold velocity and an enhancement of the amplification are proposed. Our results can be used for designing tunable solid-state terahertz wave amplifiers (generators), based on the grating coupled low-dimensional electron systems. (C) 1997 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FAR-INFRARED-EMISSION; COLLECTIVE EXCITATIONS; PLASMONS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Mar 2023 09:15 |
| Last Modified: | 29 Mar 2023 09:15 |
| URI: | https://pred.uni-regensburg.de/id/eprint/50559 |
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