Search for dissertations about: "Rikard Nelander"

Found 1 swedish dissertation containing the words Rikard Nelander.

2. 1. Lineshape in Quantum Cascade Lasers - Temperature, Screening and Broadening

   Author : Rikard Nelander; Matematisk fysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum Cascade Lasers; quantum wells; spectral lineshape; Non-Equilibrium Green s Functions; screening; temperature dependence;

   Abstract : This dissertation deals with the optical properties of Quantum Cascade Lasers (QCLs). Studies are performed using transport calculations employing the theory of Non-Equilibrium Green's Functions, and screening is studied within the Random Phase Approximation. Focus is put on the temperature dependent effects in THz QCLs. READ MORE