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Volume 20 (1998), Issue 3, Pages 139-142

A Short Theoretical Note on Optical Absorption of Amorphous Gallium Arsenide in the Infrared Range

C/Julio Palacios 11, 9–B, Madrid 28029, Spain

Received 21 April 1997; Accepted 22 July 1997

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An approach to determine the optical absorption coefficient of amorphous GaAs in the far infrared range is developed. Results from this approach are compared with experiment and with other theoretical results. In our formulation, contributions corresponding to both dynamical and structural disorders are taken into consideration.