【摘要】 本文首次报道室温下测量的分子束外延生长的ZnSe-ZnTe应变层超晶格的远红外反射谱.得到了ZnSe、ZnTe横光学声子摸.用长波长超晶格介电理论和多层吸收薄膜理论进行曲线拟合,确定Ⅱ-Ⅵ族ZnS、eZnTe材料的一些基本材料参数,如横光学声子频率、模衰减常数、模振荡强度、高频介电常数等.本文首次报道这些参数.更多还原

【Abstract】 Far-infrared reflectivity spectra have been measured for the first time on ZnSe-ZnTe strained-layer superlattioes grown by molecular beam epitaxy. The spectra at 300 K display the ZnSe and ZnTe transverse optical phonon modes. The reflectivity spectrum can be explained by the long wavelength superlattioe dielectric theory and the reflection theory of multiple absorbing layers. Fitting the experimental data with the computer calculated curve, the transverse optical phonon frequences, mode damping cons bants, mode oscillator strengths and high frequency dielectric constrant have been determinded.更多还原