IGNATOV, AA and SCHOMBURG, E and RENK, KF and SCHATZ, W and PALMIER, JF and MOLLOT, F (1994) RESPONSE OF A BLOCH OSCILLATOR TO A THZ-FIELD. ANNALEN DER PHYSIK, 3 (3). pp. 137-144. ISSN 0003-3804,
Full text not available from this repository.Abstract
In this paper we report on the observation of response of a Bloch oscillator at room temperature to a THz-field of a frequency larger than the Bloch frequency. The oscillator consisted of a semiconductor superlattice structure, with an applied dc voltage giving rise to a dc electron drift current. Submitting the oscillator to a field at a frequency of 3.3 THz caused a sizeable reduction of the current; the THz-field was generated by use of intense THz-radiation pulses focused on an antenna coupled to the superlattice. We attribute the THz-field induced reduction of the current to a frequency modulation of the Bloch oscillations of electrons at the frequency of the THz-field, leading to reduction of the electron drift velocity and, consequently, of the current.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NEGATIVE DIFFERENTIAL VELOCITY; SEMICONDUCTOR SUPERLATTICE; LOCALIZATION; PULSES; SUPERLATTICE; BLOCH OSCILLATOR; TERAHERTZ RADIATION |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53522 |
Actions (login required)
 |
View Item |
