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Poole-Frenkel Effect in Terahertz Electromagnetic Fields
- Publication Year :
- 1995
-
Abstract
- The ionisation of deep impurity centres in germanium has been observed with radiation in the terahertz range where the photon energy is much less than the binding energy of the impurities. It is shown that for not too high radiation intensities the ionisation is caused by the Poole-Frenkel effect. As in the well-known case of d.c. fields, the electric field of the high-frequency radiation lowers the Coulomb potential barrier and enhances the thermal emission of carriers.
- Subjects :
- Physics
Range (particle radiation)
Condensed matter physics
Terahertz radiation
Binding energy
ddc:530
General Physics and Astronomy
Photon energy
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
530 Physik
72.20.Ht
Poole–Frenkel effect
Terahertz spectroscopy and technology
72.40.+w
Electric field
Electric potential
71.55.-i
Atomic physics
Subjects
Details
- Language :
- German
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....2826d446085007307786ecdd72966e8d