Polarized emission of quantum dots in microcavity and anisotropic Purcell factors | Zendy

Yi-Shan Lee | Zendy; Sheng-Di Lin | Zendy

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Polarized emission of quantum dots in microcavity and anisotropic Purcell factors

Author(s) -

Yi-Shan Lee,

Sheng-Di Lin

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.001512

Subject(s) - polarization (electrochemistry) , quantum dot , physics , purcell effect , anisotropy , photon , optics , spontaneous emission , dipole , polarization rotator , degree of polarization , optoelectronics , quantum mechanics , birefringence , laser , scattering , chemistry

We study the polarization properties of quantum dot (QD) emission coupled with the fundamental cavity modes. A rotation of polarization axis and a change of polarization degree are observed as the coupling is varied. To explain this observation, we derive an analytical model considering the polarization misalignment between QD dipole and cavity mode field. Our model also provides a new approach to extract the anisotropic Purcell factors by analyzing the polarization of detected quantum dot emission coupled to the cavity mode, which paves the way to develop high-efficiency polarized single photon sources.

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