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arXiv · 2006.06170

Strong coupling between a single quantum dot and an L4/3 photonic crystal nanocavity

Kazuhiro Kuruma·Yasutomo Ota·Masahiro Kakuda·Satoshi Iwamoto·Yasuhiko Arakawa
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Abstract

We demonstrate strong coupling between a single quantum dot and a GaAs-based L4/3-type photonic crystal nanocavity. The L4/3 cavity supports a high theoretical Q factor (~8{\times}10^6), a small mode volume (~0.32 (λ/n)^3), and an electric field distribution with the maximum electric field lying within the host dielectric material, which facilitates strong coupling with a quantum dot. We fabricated L4/3 cavities and observed a high Q factor over 80,000 using photoluminescence measurement. We confirmed strong coupling between a single quantum dot and an L4/3 cavity with a Q factor of 33,000 by observing a clear anti-crossing in the spectra.

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Kazuhiro Kuruma, Yasutomo Ota, Masahiro Kakuda, Satoshi Iwamoto, Yasuhiko Arakawa. 2020-07-30. Strong coupling between a single quantum dot and an L4/3 photonic crystal nanocavity. https://doi.org/10.35848/1882-0786%2Faba7a8

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