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arXiv · 1707.04996

Circularly polarized vacuum field in three-dimensional chiral photonic crystals probed by quantum dot emission

S. Takahashi·Y. Ota·T. Tajiri·J. Tatebayashi·S. Iwamoto·Y. Arakawa
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Abstract

The quantum nature of light-matter interactions in a circularly polarized vacuum field was probed by spontaneous emission from quantum dots in three-dimensional chiral photonic crystals. Due to the circularly polarized eigenmodes along the helical axis in the GaAs-based mirror-asymmetric structures we studied, we observed highly circularly polarized emission from the quantum dots. Both spectroscopic and time-resolved measurements confirmed that the obtained circularly polarized light was influenced by a large difference in the photonic density of states between the orthogonal components of the circular polarization in the vacuum field.

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S. Takahashi, Y. Ota, T. Tajiri, J. Tatebayashi, S. Iwamoto, Y. Arakawa. 2017-07-17. Circularly polarized vacuum field in three-dimensional chiral photonic crystals probed by quantum dot emission. https://doi.org/10.1103/physrevb.96.195404

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