Propagation of Excitonic Polaritons in a
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Freixanet, T. ;Sermage, B. ;Tiberj, A. ;Thierry-Mieg, V.
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Article
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2000
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John Wiley and Sons
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English
⚖ 182 KB
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By exciting resonantly a microcavity with a pulsed laser beam, we have observed the in-plane propagation of excitonic cavity polaritons on distances much greater than the wavelength. The initial in-plane wave vector is conserved during several tens of picoseconds showing it is a good quantum number