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Polarization of the interband optical dipole in InAs/GaAs self-organized quantum dots

✍ Scribed by S Cortez; O Krebs; P Voisin; J.M Gérard

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
114 KB
Volume
13
Category
Article
ISSN
1386-9477

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✦ Synopsis

We present measurements of the optical dipole of interband transitions in InAs=GaAs quantum dots. Both the transmission in guided-wave geometry and the in-plane polarization dependence of the photoluminescence are analyzed. The relative oscillator strength and polarization of up to four optical transitions have been determined, and the electronic structure is discussed, with focus on the heavy-hole versus light-hole character of valence states.

📜 SIMILAR VOLUMES

Exciton Spin Dynamics in Self-Organized
Exciton Spin Dynamics in Self-Organized InAs/GaAs Quantum Dots
✍ Marie, X. ;Jbeli, A. ;Paillard, M. ;Amand, T. ;G�rard, J.M. 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 83 KB 👁 2 views

The spin dynamics in self-organized InAs/GaAs quantum dots have been studied by time-resolved photoluminescence performed under strictly resonant excitation conditions. It is demonstrated that the carrier spins in these nanostructures are totally frozen on the scale of the exciton lifetime.