Abstract:Polarized infrared (IR) reflectance measurement was carried out to investigate the optical phonon modes of wurtzite structure In0.92Ga0.08N thin film grown by molecular beam epitaxy. Composition dependence of IR reststrahlen features was observed. Theoretical polarized IR reflectance spectrum was simulated using the standard multilayer optics technique with a multi-oscillator dielectric function model. By obtaining the best fit of experimental and theoretical spectrum, the Brillouin zone center E1 optical phon… Show more
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