Optical shaping of the polarization anisotropy (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Optical shaping of the polarization anisotropy

Caption

For polarized excitation parallel (θex =90°) and perpendicular (θex =0°) to the coupled direction, different anisotropies are obtained in the photoluminescence intensity of excitons and biexcitons. Two quantum dots (QD1 and QD2) contain excitons (X1 and X2) and local biexcitons (X1X1 and X2X2), respectively. However, coupled biexcitons (X1X2) are generated only by the parallel polarization excitation (θex =90°).

Credit

by Kwangseuk Kyhm

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