Giant optical anisotropy in a single InAs quantum dot in a very dilute quantum-dot ensemble

Abstract

We present the experimental evidence of giant optical anisotropy in single InAs quantum dots. Polarization-resolved photoluminescence spectroscopy reveals a linear polarization ratio with huge fluctuations, from one quantum dot to another, in sign and in magnitude with absolute values up to 82%. Systematic measurements on hundreds of quantum dots coming from two different laboratories demonstrate that the giant optical anisotropy is an intrinsic feature of dilute quantum-dot arrays.

arXiv commentsubmitted to Applied Physics Letters

References in corpus (2)

• Polarization-Correlated Photon Pairs from a Single Quantum Dot
• Accuracy of circular polarization as a measure of spin polarization in quantum dot qubits

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