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Nonlinear far-infrared absorption in InSb at light impact ionization

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.

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Other URL: http://www.physik.uni-regensburg.de/forschung/ganichev/reprints/AppPhysLet1994p1977_NonlinearFarInfrared1977_1979.pdf


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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Item Type:Article
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
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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
Item ID:2255
Owner Only: item control page


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