Ganichev, Sergey and Diener, J. and Prettl, Wilhelm (1994) Nonlinear far-infrared absorption in InSb at light impact ionization. Applied Physics Letters 64 (15), pp. 1977-1979.
A highly nonlinear far-infrared free-carrier absorption, rising with the radiation intensity, has been observed in InSb. It is shown that the nonlinearity arises from an increase in the number of free carriers caused by the generation of electron-hole pairs by light impact ionization in the radiation field of a powerful far-infrared laser. The observed nonlinearity permits the investigation of the process of impact ionization by a contactless optical method.
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|Date:||11 April 1994|
|Institutions:||Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Wilhelm Prettl|
Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
|Dewey Decimal Classification:||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|