Refractive indices and the exponential optical absorption for Hg1−xCdxTe (0.2

摘要

For Hg1−xCdxTe, in the range ofxbartil;0.2–0.3, the optical dispersion parameters (single‐oscillator energyE0,dispersion energyEd, and lattice‐oscillator energyE1) and the fitting parameter of the exponential optical absorption (steepness factor sgr;) were analyzed using the data by Finkman and co‐workers J. Appl. Phys.50, 4356 (1979); J. Appl. Phys.56, 2896 (1984). For Hg1−xCdxTe the values ofE0,Ed, and sgr; in this composition range are smaller than those for CdTe, andE1is larger than that for CdTe. The results suggest that the chemical bonding of Hg1−xCdxTe in the range ofxbartil;0.2–0.3 is smaller than that of CdTe.