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Polariton lasing in high-quality Selenide-based micropillars in the
strong coupling regime
release_p3fv4sohwfcejdcfu5q6xmpl64
by
T. Klein,
S. Klembt,
E. Durupt,
C. Kruse,
D. Hommel,
M. Richard
Released
as a article
.
2015
Abstract
We have designed and fabricated all-epitaxial ZnSe-based optical micropillars
exhibiting the strong coupling regime between the excitonic transition and the
confined optical cavity modes. At cryogenic temperatures, under non-resonant
pulsed optical excitation, we demonstrate single transverse mode polariton
lasing operation in the micropillars. Owing to the high quality factors of
these microstructures, the lasing threshold remains low even in micropillars of
the smallest diameter. We show that this feature can be traced back to a
sidewall roughness grain size below 3 nm, and to suppressed in-plane polariton
escape.
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1504.07741v2
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