Electrodynamic analysis of the propagation of electromagnetic waves in a thin-film semiconductor structure with negative differential resistance
Abstract
Electromagnetic-wave propagation in active thin-film semiconductor structures with negative differential resistance is investigated theoretically for the case of a nonuniformly distributed static field. A field representation in the form of the sum of potential-vortex 'fast' and quasi-static 'slow' modes is used to derive relations linking the local parameters of the structure (impedance and field) determined by space-charge-wave propagation with parameters of electromagnetic-wave propagation (the wave numbers). The proposed approach made it possible to calculate the gain and delay in a GaAs structure with a strong-field domain with allowance for the effect of diffusion and the static-field nonuniformity.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- August 1983
- Bibcode:
- 1983RaEl...28.1633L
- Keywords:
-
- Electrodynamics;
- Electromagnetic Wave Transmission;
- Negative Resistance Devices;
- Semiconducting Films;
- Thin Films;
- Electric Fields;
- Gallium Arsenides;
- Static Electricity;
- Wave Amplification;
- Electronics and Electrical Engineering