Ganichev, Sergey and Diener, J. and Yassievich, Irina and Prettl, Wilhelm (1995) Poole-Frenkel Effect in Terahertz Electromagnetic Fields. Europhysics Letters 29 (4), pp. 315-320.
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.
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|Date:||1 February 1995|
|Institutions:||Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||05 Oct 2007|
|Last Modified:||13 Mar 2014 10:17|