Figure 8 | Scientific Reports

Figure 8

From: M-plane GaN terahertz quantum cascade laser structure design and doping effect for resonant-phonon and phonon-scattering-injection schemes

Figure 8

(a,b) The percentage of population and the absolute population inversion density of both structures. (c) The oscillator strength between ULL and LLL as a function of doping density for both structures. (d,e) The spectral functions of the ULL and LLL at doping density of 2.0 × 1010 and 1.6 × 1011 cm−2 for both structures. (f) The FWHM of the gain spectrum as a function of doping density for the two structures. All are at 10 K.

Back to article page