Bloch-wave engineering of quantum dot micropillars for cavity quantum electrodynamics experiments

Bloch-wave engineering of quantum dot micropillars for cavity quantum electrodynamics experiments

We have employed Bloch-wave engineering to realize submicron diameter high quality factor GaAs/AlAs micropillars (MPs). The design features a tapered cavity in which the fundamental Bloch mode is subject to an adiabatic transition to match the Bragg mirror Bloch mode. The resulting reduced scatterin...

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Veröffentlicht in:Physical review letters 2012-02, Vol.108 (5), p.057402-057402, Article 057402
Hauptverfasser: Lermer, M, Gregersen, N, Dunzer, F, Reitzenstein, S, Höfling, S, Mørk, J, Worschech, L, Kamp, M, Forchel, A
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container_end_page 057402
container_issue 5
container_start_page 057402
container_title Physical review letters
container_volume 108
creator Lermer, M
Gregersen, N
Dunzer, F
Reitzenstein, S
Höfling, S
Mørk, J
Worschech, L
Kamp, M
Forchel, A
description We have employed Bloch-wave engineering to realize submicron diameter high quality factor GaAs/AlAs micropillars (MPs). The design features a tapered cavity in which the fundamental Bloch mode is subject to an adiabatic transition to match the Bragg mirror Bloch mode. The resulting reduced scattering loss leads to record-high vacuum Rabi splitting of the strong coupling in MPs with modest oscillator strength quantum dots. A quality factor of 13, 600 and a splitting of 85  μeV with an estimated visibility v of 0.41 are observed for a small mode volume MP with a diameter d{c} of 850 nm.
doi_str_mv 10.1103/PhysRevLett.108.057402
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title Bloch-wave engineering of quantum dot micropillars for cavity quantum electrodynamics experiments
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