Design and simulation of losses in Ge/SiGe terahertz quantum cascade laser waveguides

Complex refractive indices of n-Ge for doping of 3e19 cm^-3, 1e18 cm^-3 and nominally undoped at 300 K over the frequency range 0.060606 THz (4.95 mm wavelength) to 121.21 THz (2.48 micrometre wavelength). p-Si0.1Ge0.9, p-Si0.2Ge0.8 and p-Si0.3Ge0.7 complex refractive indices at 300 K over the frequency range 0.060606 THz (4.95 mm wavelength) to 121.21 THz (2.48 micrometre wavelength). The temperature dependent complex refractive indices of n-Ge over the frequency range 0.060606 THz (4.95 mm wavelength) to 121.21 THz (2.48 micrometre wavelength).