Experimental observation of attenuated-total-reflection spectra of GaAs/AlAs superlattice
- 15 January 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 41 (2) , 1254-1257
- https://doi.org/10.1103/physrevb.41.1254
Abstract
We present the first experimental observation of the attenuated-total-reflection (ATR) spectra of GaAs/AlAs superlattice. The ATR spectra clearly show the excitation of surface-phonon polaritons on the semiconductor superlattice. We have, moreover, evaluated the dielectric parameters of GaAs and AlAs through a theoretical ATR-spectra fit to the experimental ones. These parameters are compared with those reported previously.Keywords
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