Polaritons in high reflectivity microcavities: semiclassical and full quantum treatment of optical properties

✍ Scribed by L.C. Andreani; V. Savona; P. Schwendimann; A. Quattropani

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 252 KB
• Volume: 15
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1994.1086

✦ Synopsis

We present a comparison between the semiclassical and the full quantum descriptions of optical properties of quantum wells (\left(\mathrm{QW}_{8}\right)) in semiconductor microcavities. The semiclassical theory, which is based on a nonlocal treatment of the optical response of a single (\mathrm{QW}), allows one to calculate reffectivity, transmission, and absorption curves. The quantum theory, which is developed in a quasi-mode approach for the coupling of the closed-cavity modes to the outside radiation continuum, provides a description of photoluminescence processes. The frequency-dependence of the phase of the mirror reflection coefficient has an important role in both theories. Numerical results show that the mixed mode (polariton) dispersion and the Rabi splitting calculated from semiclassical and quantum theories coincide rather well.