Bloch-wave engineering of quantum dot micropillars for cavity quantum electrodynamics experiments.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Physical review letters
دوره 108 5 شماره
صفحات -
تاریخ انتشار 2012