Passage of strong electromagnetic pulse through semiconductor in external magnetic field
Abstract
Passage of an ultrashort electromagnetic pulse through a semiconductor under conditions of cyclotron resonance is analyzed theoretically. The equations of motion are derived from the Hamiltonian for a conduction electron in a magnetic field, this Hamiltonian being approximated according to the Kane two band model. The solution for a rectangular pulse, with a nonparabolic dispersion in the conduction band, yields the possibility of a soliton. The form of the soliton depends on the threshold condition and on the deviation of the pulse carrier frequency from the cyclotron resonance frequency, with either a Lorentz soliton or a soliton approaching the sech (hyperbolic secant) form. The duration of solitons depends on their propagation velocity and on the properties of the medium.
- Publication:
-
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- March 1984
- Bibcode:
- 1984RpEEE.......18G
- Keywords:
-
- Cyclotron Resonance;
- Electromagnetic Pulses;
- Magnetic Fields;
- Semiconductors (Materials);
- Solitary Waves;
- Theoretical Physics;
- Approximation;
- Carrier Frequencies;
- Hamiltonian Functions;
- Mathematical Models;
- Velocity Measurement;
- Wave Propagation;
- Communications and Radar