What is it about?

Microcavity polaritons are mixed oscillations of photons and quantum well excitons. Upon triggering the two electromagnetic normal modes of polaritons with delayed pulses, we could for the first time obtain a kind of emitted light which is continously sweeping its polarization on the picosecond scale.

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Why is it important?

Polarization shaping is a paradigm of modern photonics which is raising interest for example in the field of polarized femtochemistry. Our technique is based on the universal principles of normal modes coupling and coherent control, and could thus be extended to other physical platforms as well.

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This page is a summary of: Polarization shaping of Poincaré beams by polariton oscillations, Light Science & Applications, November 2015, Nature, DOI: 10.1038/lsa.2015.123.
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