Optical Nonlinearities in a Microcavity with InGaN Quantum Wells: Self-Assembled Quantum Dots Approach

✍ Scribed by Nikolaev, V.V. ;Portnoi, M.E.

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 99 KB
• Volume: 190
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/1521-396x(200203)190:1<193::aid-pssa193>3.0.co;2-m

✦ Synopsis

We incorporate the quantum dot picture into analysis of light-matter coupling in GaN microcavities with InGaN quantum wells. We investigate quantitatively the transition from weak to strong coupling regime with the variation of the in-plane density of quantum dots, radiative recombination time of the carriers trapped in a single dot and inhomogeneous broadening of the localisedexciton transition. We model a non-linear behaviour of optical properties of a nitride-based microcavity with layers containing quantum dots. Reflection-transmission-absorption spectra for different carrier densities are calculated. Transition from the strong coupling to the lasing regime with increasing pumping intensity is predicted for high finesse microcavity structures.