Ultrafast dynamics of three-dimensional Kane plasmons in the narrow-bandgap Hg${}_{0.8}$Cd${}_{0.2}$Te

Xiaoyue Zhou, Yi Chan, Siyuan Zhu +3

We report on an ultrafast terahertz spectroscopic study on the dynamics of free carriers and the pertinent bulk plasmons in Hg${}_{0.8}$Cd${}_{0.2}$Te (MCT) film, a narrowband semicond…