Quantum-dot-based optical polarization conversion

Details Quantum-dot-based optical polarization conversion Quantum-dot-based optical polarization conversion

2005-09-03

arxiv.org/abs/cond-mat/0509080v2

Phys. Rev. Lett. 96, 027402 (2006)

Physics

Condensed Matter

Materials Science

5 pages, 3 figures; a reference added

Scientific paper

We report circular-to-linear and linear-to-circular conversion of optical polarization by semiconductor quantum dots. The polarization conversion occurs under continuous wave excitation in absence of any magnetic field. The effect originates from quantum interference of linearly and circularly polarized photon states, induced by the natural anisotropic shape of the self assembled dots. The behavior can be qualitatively explained in terms of a pseudospin formalism.

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