Abstract
The surface polaritons (SP) variation in Ga As/ Al Ga As/ LH hetrojunction composition in the presence of
a strong transverse quantized magnetic field is estimated using the quantum Hall effect case. The
dispersion characteristics of the SPs are investigated using the dielectric constants values of the Ga As and
the Alx Ga 1-x As media and the defined thickness, the Alx Ga 1-x As medium. The dispersion behaviours
calculated results are listed for considered cases. It was shown that the frequency values against the wave
vector values are affected in a strong manner by changing thickness, of the Alx
Ga 1-x- As media and by
changing the variation of the dielectric constants of Ga As against the Alx Ga 1-x As. The significance
effects of the use of the left-handed (LH) medium as an upper layer of the proposed composition was
demonstrated; the frequency values are remarkably increased using LH material as an upper layer. It was
noticed that at certain conditions of the LH upper layer composition, similar results have been obtained
such as found by using dielectric upper layer.
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