Chapter 6
Simulation Results

In this chapter the simulation results are presented. In section 6.1 results from calculations using Robin boundary conditions are demonstrated and discussed. Especially, the tunneling current and the optical gain are analyzed. Section 6.2 contains the results of the Monte Carlo simulations, where special focus is put on the role of interface roughness and intervalley scattering.

 6.1 Quantum Ballistic Transport Calculations
  6.1.1 Tunneling Current Density
  6.1.2 Optical Gain
 6.2 Design and Perfomance Investigations
  6.2.1 A THz QCL
  6.2.2 Mid-infrared QCL
  6.2.3 Simulation of an Al-free QCL